While looking at the recently published spec comparison at our website many of our users are sending few common questions to us, it includes; How Panasonic is able to do AF in just 0.07 sec with the help of contrast based technology? Does DFD technology is actually a firmware or hardware thing ? Where does the Panasonic DFD Actually placed, inside the sensor or somewhere else ?
I want to keep this post as short as possible
What is DFD?
Panasonic DFD is hardware and exclusively designed & developed by Panasonic and it’s not a software. DFD autofocus relies on special hardware in the camera’s processor, so can’t be brought to older models via firmware updates.
How it Work?
Before we explain that we have to understand how the traditional contrast based system work, the traditional contrast detect system based camera actually. Camera having a normal contrast based Sensor determines the best focus point by moving the AF ring and scanning the entire subject, once the scan is done the lens AF reverse back to peak focus point. However when a Panasonic camera uses DFD technology, it quickly predict aka calculate the AF point and move AF point quickly there, finally it uses contrast based system to fine-tune the AF point.
So don’t get confused that Panasonic newly announced camera is using contrast based system only, the Camera AF based on DFD tech and later it fine-tuned by contrast AF. The biggest advantage of this technology that sensor doesn’t have any single dead pixel like other Hybrid AF sensors have for phase AF.
Take a look at the specification comparison review of both the camera, the recently announced Panasonic GX8 camera features newly developed MOS sensor from Sony on the other hand the Panasonic GH4 features traditional 16MP sensor, for other noticeable difference written below…
Panasonic Lumix DMC-GX8 vs. Panasonic GH4 Specification Comparison Table.
|Features / Models
|Sensor size / type
||Four Thirds (17.3 x 13 mm)
||Four Thirds (17.3 x 13mm)
||Contrast Detect (sensor)
||Contrast Detect (sensor)
||60 sec 1/16000 sec
||60 sec 1/8000 sec
|Top Continuous Shooting Speed
||3840 x 2160 (30p, 24p)
||4096 x 2160 (24p)
||3″ Rear Touchscreen Swivel Touchscreen OLED (1,040,000)
||3″ Touch screen Swivel OLED (1,036,000)
||Built-In with NFC
|Battery Life (CIPA)
||133 x 78 x 63 mm
||133 x 93 x 84 mm
Sensor: The sensor size of both the camera is same but they features different resolution, the Panasonic GX8 4/3 sensor features 20 MP sensor as well as the Panasonic GH4 features a 16 MP 4/3 sensor. The sensor inside the Panasonic GX8 is actually newly designed and developed by Sony, so despite of having same size and same ISO range I do believe the sensor inside the Panasonic GX8 will capture better still and video compared the GH4 camera.
With the help of new Venus Engine IX image processor and Sony IMX 269 sensor the camera is able to record 4K video at 30 and 24 fps, not only that you can also shoot 4K snaps (8 megapixels) @ 30 frames per second, that’s more than enough for capturing a live F1 event.
Panasonic GH4 full resolution continuous shooting speed is approx 12 fps and on the other hand the Panasonic GX8 continuous shooting speed is limited to 10 fps only, however keep in mind that the resolution of GX8 is bit high compared to the GH4.
The other major advantage of the new image processor is increase in the AF speed of the camera, although both camera is based on contrast based system but due to the addition of Venus Engine IX processor the AF speed is now approx 40% faster than the AF speed of GX7.
Due to the presence of Electronic shutter in GX8 camera you get electronic shutter speed of 1/16000 sec where as the GH4 shutter speed is limited to 1/8000, with the Panasonic GX8 you can easily capture any sports event or flying bird in the air (highly suitable for sports and wildlife photography)
The Panasonic GX8 carry built-in WiFi and NFC, with the help of WiFi you can easily share your files whereas the with the NFC you can easily control you camera from a distance, you can use any of you NFC enabled smart device to control your camera. The Panasonic GH4 carries only built-in WiFi tag, so it can only used for sharing files.
Verdict: The Panasonic GX8 features improved core specification compared to the Panasonic GH4 camera, you get a camera with bit better core specification at $500 less.
Buy Panasonic GX8 from Amazon | B&H
Real size comparison – Fuji have smaller body and big sensor
Panasonic GH4 vs Fuji X-T1, the X-T1 is flagship camera from fuji and Panasonic GH4 is a flagship camera from Panasonic, before we start the comparison I must say that Panasonic GH4 have better video capturing mode and resolution compared to X-T1.. but Fuji have very strong core specification for still shooters.. take a look below for more details
Fuji have bigger sensor, the APS-C sensor have more surface area to collect light compared M4/3 format based sensor, hence Fuji will give better image quality and more dynamic range due to bigger sensor size.
No Low-pass filter – Fuji features 16.3MP APS-C X-Trans CMOS II Sensor, the X trans sensor doesn’t need a external low-pass filter hence it will produce sharper still images compared to Panasonic GH4 at 100%.
PDAF architecture – The Fuji X-T1 system have built-in phase AF points inside the sensor, due to PDAF technology the camera have HYBRID AF system inside, the Panasonic GH4 is limited to contrast based AF system.
ISO Range: Fujifilm X-T1 ISO range starts from 100 to 51200, the GH4 ISO range is limited to 25600 only.
From the above we conclude that Fuji X-T1 will produce better Image Quality and also have advance AF system than Panasonic GH4.
Professional 4K Video Recording in GH4 – The Panasonic GH4 records 4K video, 16:9 UHD 4K 3840×2160 video at 23.98p, 24p or 29.97p, and 17:9 DCI (Digital Cinema Initiatives) 4K 4096×2160 videos at 24p. with MOV, MP4, MPEG-4 AVCHD recording formats.
Fujifilm X-T1 is limited to Full HD Video recording with 60fps frame rate, recording format H.264, MOV.
Shutter: Panasonic GH 4 have fast continuous shooting speed and shutter range.
Display: I like the display unit of Panasonic GH4 camera, the GH4 moves in multiple direction on the other hand X-T1 display unit have limited flexibility.
Both camera built with Magnesium Alloy metal, you get a Weather Sealed Body to shoot in all conditions.
Both camera have built-in wireless connectivity
Verdict: Fujifilm X-T1 have better Sensor and AF system, but Panasonic GH4 have 4K video recording option, for still shooters we highly recommend you to buy FujiX-T1 on the other hand Panasonic GH4 is recommended for Videographers.
Buy Panasonic GH4 at Amazon| from B&H
We know that its not fair to compare a M4/3 sensor camera with a Fullframe sensor camera, but recently a comparison done by camerazone shows that Panasonic GH4 is a better option for videoshooters compared to (see the test here),
So the big question is Will GH4 also give better performance during still shots? and the answer is NO… take a look at the test below.. the image samples of Canon 5D Mark III look impressive even at High ISO images when compared to Panasonic GH4.
Image – Credit www.imaging-resource.com
We can clearly see the amount of details available in Canon 5D Mark III DSLR, no doubt that 5D Mark III is best still shooting camera compared to Panasonic GH4.
Buy Canon 5D Mark III From Amazon|| Buy Panasonic GH4 at Amazon| from B&H
Camera Zone compared all three – Panasonic GH4 vs 5D Mk III vs Blackmagic Pocket Cinema Camera video quality side by side, the Panasonic GH4 showing remarkably sharp video files compared to Canon 5D Mark III or Blackmagic Pocket Cinema Camera, other thing should be considered is Panasonic GH4 was set to record 4K (highest quality available ) during the test, after that GH4 4K is downscaled to 1080p. .
Buy Canon 5D Mark III From Amazon|| Buy Panasonic GH4 at Amazon| from B&H
Panasonic GH4 is finally available 4 Pre-order, the world first mirrorless camera that can record 4K video at 24p, other available recording options are UHD 4K 3840×2160 at 30p/24p and Full HD up to 60p videos with variety of formats include MOV, MP4, AVCHD Progressive, and AVCHD. In MP4 / MOV, high quality LPCM (Linear Pulse Code Modulation) sound can be recorded.
On still side we have a 16.05 MP Digital Live MOS Sensor with a ISO range upto 25600, the camera have 49 point contrast detect AF system and shoot bursts of 12 fps in AFS mode.
The body is made by Magnesium Alloy, A splash and dustproof design suitable for all type of weather conditions.
Pre-order at Adorama | B&H Store
Panasonic Lumix DMC-GH4 Mirrorless Digital Camera Body Only, Black – with 4K Video Recording
Announcement page – Panasonic GH4 – Price, Press Release, Full Specification and Sample Videos
The long rumored panasonic GH4 announced today the camera features 4K recording option, thanks to the newly optimized 16 Megapixel sensor and advance Venus Engine IX processor, the camera can record 4K OR Quad HD (3840 x 2160) at up to 29.97p and ‘Cinema 4K’ (4096 x 2160) at up to 24p.
The camera also features newly decloped high-precision Contrast AF system – DFD (Depth from Defocus) technology with High-Speed 49-Point Autofocus, that takes approx 0.04 sec to lock down AF under normal condition.
Other fetures include built in WiFi and NFC, RAW data development in Camera: The DMC-GH4 is capable of developing RAW image in camera.
Pre-Order at Amazon
Pre-order Panasonic GH4 from B&H
A Digital Single Lens Mirrorless (DSLM) Camera DMC-GH4 with New AF Technology and the World’s First* 4K Video Recording Capability (for a mirrorless camera) To Meet Professional Needs for Both Photography and Videography
Panasonic is proud to introduce an ultimate photo/video hybrid Digital Single Lens Mirrorless (DSLM) camera DMC-GH4 for the successor of DMC-GH3 that created an industrial sensation with its outstanding video recording performance. The image quality for both photo and video is dramatically improved by crystallizing Panasonic’s cutting-edge technologies.
The newly developed 16.05-megapixel Digital Live MOS Sensor for DMC-GH4 excels both in sensitivity and response and suppresses rolling shutter effect even when using electronic shutter or recording motion image. The image processor Venus Engine is also newly developed dramatically boosting its performance with new quad-core CPU that lets high speed signal processing required for rich video recording such as 4K. Integrating superior noise reduction systems, DMC-GH4 enables shooting at max.ISO25600. Sensitivity, gradation performance, resolution and color reproduction are dramatically improved to achieve even higher picture quality. The DMC-GH4 boasts high speed burst shooting at 12 fps(AFS) up to approx.40 (including RAW) / approx.100 (excluding RAW) and 7.0 fps (AFC) to capture fast moving subject just in-focus.
The new DMC-GH4 further evolves to bridge the gap of consumer video camera and professional video camera. One of the most prominent advance is unlimited*14K video recording (Cinema 4K: 4096×2160 / 24 fps and QFHD 4K: 3840×2160 / up to 30 fps) in MOV/MP4*2. The DMC-GH4 is also
capable of recording Full- HD video with ultra high bitrate at 200 Mbps (ALL-Intra) or 100 Mbps (IPB) without recording time limit*1.
Users can freely choose the format from MOV, MP4, AVCHD Progressive and AVCHD at a variety of frame rates according to the usage. For the global business of professional users, the system frequency can be flexibly selectable between 59.94Hz (23.98Hz) / 50.00Hz / 24.00Hz. The DMC-GH4 is also capable of real-time image output to the external monitor via an optional micro HDMI cable simultaneously while recording video. For more unique video expression, VFR (Variable Frame Rate) or Time Lapse/Stop Motion Animation can be produced with DMC-GH4 without postproduction process. In addition, a variety of practical functions required for professional video recording are newly integrated.
The high-precision Contrast AF system in the DMC-GH4 is further enhanced by Panasonic’s integration of DFD (Depth from Defocus) technology which even shortens the time to set focus to achieve ultra high speed AF of approx.0.07 sec*3. Not only speed but also the operability is enhanced
thanks to the addition of Face / Eye Detection AF or 49-point AF with Custom Multi AF mode.
The DMC-GH4 boasts newly developed high-precision, high-speed dual OLED (Organic Light-Emitting Diode) displays for 2,359K-dot LVF (Live View Finder) and 1,036K-dot rear monitor. Both LVF and rear monitor adopts OLED to achieve high speed response with minimum time lag while enhancing the resolution. Notably, the OLED for the LVF in DMC-GH4 boasts 10,000:1 high contrast for superior color reproduction. Now the excellent visibility comes closer to OVF.
To be tough enough to withstand even heavy field use, the main structure of the DMC-GH4 is composed of magnesium alloy full diecast front/rear frame. It also features splash / dustproof construction thanks to the sealing on every joint, dial, and button. The shutter unit that allows max. 1/8000 fast shutter release is also redesigned to be even more durable for approx. 200,000 times release*4.
Even a moment’s waste matters in professional shooting condition, hence it is possible to make target setting intuitively thanks to the optimum layout of control devices on DMC-GH4 . The DMC-GH4 also incorporates Wi-Fi® with NFC technology, terminals highly connectable to external equipment. Now RAW files can be developed in camera.
Evolving further in every aspect – performance, mobility, durability and expandability, Panasonic is proud to offer DMC-GH4 for a reliable first camera to professional field photographers, film creators and hybrid photographers.
*1 — Motion image can be recorded up to 29 min 59 sec depending on the recording format and the camera’s sales area.
*2 — Use SDXC/SDHC Memory Card compatible with UHS Speed Class 3 (U3) when using high bitrate video recording mode over 100 Mbps.
*3 — In AFS, With LUMIX G VARIO 14-140mm / F3.5-5.6 ASPH. / POWER O.I.S. or LUMIX G X VARIO 12-35mm / F2.8 ASPH. / POWER O.I.S.
*4 — Panasonic in-house examination.
1. The Newly Developed 16.05-Megapixel Digital Live MOS Sensor and Venus Engine Achieving High Speed, High Sensitivity Image Recording
Panasonic developed new 16.05-megapixel Digital Live MOS Sensor for DMC-GH4 that achieves high quality, high sensitivity image recording with quick response. Approx. 50% higher speed signal readout suppresses rolling shutter effect even when using electronic shutter or recording motion image. The maximum number of recordable images is up to 40(including RAW) / 100 (excluding RAW). Taking full advantage of the Live MOS Sensor, gradation range is expanded by max.1/3 step at low ISO end with fine tuning control by the Venus Engine. Plus, superior noise reduction realizes max.60 min long exposure in B(bulb) mode.
The image processor Venus Engine is also newly developed dramatically boosting its performance with new quad-core CPU that lets high speed signal processing required for rich video recording such as 4K. The advanced Multi-process NR (Noise Reduction) applies effective noise reduction and edge processing according to each component frequency. Plus, newly added Random Filter granulates chromatic noise to be blended into the image even more naturally. As a result, the max. ISO 25600 is achieved. On the other hand, optimizing the combination design of new sensor, new imaging engine and low-pass filter enhances the limit resolution by more than 5% while suppressing moire. Newly adopted aperture filter is capable of controlling over wider frequency range. It adjusts the amount of sharpness according to the frequency level, resulting in faithful stereoscopic effect. The Venus Engine also
improves color reproduction with accurate evaluation of each color even it is similar not only in color phase but also in saturation and luminosity.
The combination of the Digital Live MOS Sensor and the Venus Engine achieves stunning picture quality in its natural way – that is what LUMIX aspires for.
2. The World’s First Digital Single Lens Mirrorless (DSLM) Camera Recording High Quality Video in 4K – To Meet Professional Quality and Standard
The predecessor DMC-GH3 created an industrial sensation with its outstanding video recording performance that meets the professionals’ quality and standard. The new DMC-GH4 further evolves to bridge the gap of consumer video camera and professional video camera. One of the most prominent advance is unlimited*1 4K video recording (Cinema 4K: 4096×2160 / 24 fps and QFHD 4K: 3840×2160 / up to 30 fps) in MOV/MP4*2. The DMC-GH4 is also capable of Full- HD video with ultra high bitrate at 200 Mbps (ALL-Intra) or 100 Mbps (IPB), which does not have limit of recording time*1. Users can freely choose the format from MOV, MP4, AVCHD Progressive and AVCHD at a variety of frame rates according to the usage [Figure#1]. In MP4 / MOV, high quality sound in LPCM (Linear Pulse Code Modulation) is recordable. For the global business of professional users, the system frequency can be flexibly selectable between 59.94Hz (23.98Hz) / 50.00Hz / 24.00Hz.
The DMC-GH4 is also capable of real-time image output to the external monitor in 4:2:2 / 8-bit*3 via an optional micro HDMI cable simultaneously while recording video. Even 4:2:2 / 10-bit is available which is suitable for the professional video making that requires serious monitoring of the footage. Users can choose to output only the recording content or the content with the setting menus individually depending
on a display.
Plus, the VFR (Variable Frame Rate) enables recording video with slow/fast motion such as 96 fps, 4x, all in Full-HD[Figure#2]*4. Time Lapse/ Stop Motion Animation video can be produced in camera, too.
For more precise control over video image quality, the DMC-GH4 integrates Zebra Pattern to watch white wash-out or Focus Peaking. The DMC-GH4 even allows Master Pedestal system is newly integrated with which users can adjust the brightness balance ±15 steps based on the color of black. Gamma presets exclusively for video recording are newly available in Creative Video mode – “CINELIKE D” and “CINELIKE V” for rich video expression like a cinema. Synchro Scan mode is also newly availableto reduce suppress flicker. It is selectable to display Center Marker while recording.
The DMC-GH4 is equipped with functions that meets global standard for synchronous video recording. 1KHz Test Tone and Color Bars(SMPTE / EBU / ARIB Standard) are newly available on DMC-GH4. The DMC-GH4 also embeds SMPTE-compliant Time Code either in Rec Run or Free Run count-up methods, which makes it easy to synchronize the multiple video footage or sound source in the post production workflow. Time Code Value can be started at any point of [Reset], [Manual Input] and [Current Time]. Drop frame or Non Drop Frame time code is selectable*5. When recording the video in MOV, AVCHD Progressive, AVCHD or MP4(LPCM), the DMC-GH4 automatically generates multiple seamless files for continuous recording. During playback, the AVCHD Progressive / AVCHD files are reproduced with seamless, interruption-free continuity.
A total of 22 LUMIX G digital interchangeable lenses offers any creative perspective according to the scene. Especially those crowned as HD lenses allows silent, high performance AF control suitable for video recording.
* 1 — Motion image can be recorded up to 29 min 59 sec depending on the recording format and the camera’s sales area.
*2 — Use SDXC/SDHC Memory Card compatible with UHS Speed Class 3 (U3) when using high bitrate video recording mode over 100
*3 — Setting the HDMI output picture quality [4:2:2 10bit]:You can output the image through the HDMI connection in higher picture quality, but you cannot record it as a motion picture or still pictures. Ideal when the HDMI output is to be saved on external devices. [4:2:2 8bit]:You can record the image while outputting it through the HDMI connection. Ideal for recording while checking the motion picture on an external monitor. When using 4:2:2 / 8-bit output, video is recorded in 4:2:0 / 8-bit on SDXC/SDHC Memory Card.
*4 — In 24p playback. Effect value varies depending on the recording format and frequency.
*5 — When system frequency [59.94Hz] is selected
3. High Speed Response Required for Professionals and Practical AF Options
All cameras of LUMIX G adopt Contrast AF for its focus system. Compared with the Phase difference system AF, the Contrast AF boasts higher accuracy especially in shooting with bright lens with small F value. With the LUMIX G digital interchangeable lens capable of digital signal exchange at max. 240 fps, the focusing is stunningly quick and smooth. The Contrast AF system in the DMC-GH4 is furtherenhanced by Panasonic’s integration of DFD (Depth from Defocus) technology which even shortens the time to set focus. It figures out the distance to the subject by evaluating 2 images with different depth of field while consulting the data of optical characteristics of the using lens in a moment. As a result, the DMC-GH4 achieves ultra high speed AF of approx.0.07 sec*. This improvement benefits more as focusing distance increases. The speed of burst shooting is dramatically faster than the predecessor DMC-GH3, boasting high speed burst shooting at 12 fps (AFS) up to approx.40 (including RAW) / approx.100 (excluding RAW) and 7.0 fps (AFC) to capture fast moving subject just in-focus.
Not only these, stability of continuous focusing is improved focusing is now even smoother by minimizing wobbling in both photo and video recording. Together with the quick start-up and short release time lag, the DMC-GH4 never lets photographers miss fleeting shooting opportunities.
In addition to the conventional Face Recognition AF, the DMC-GH4 newly incorporates Eye Detection AF which automatically sets focus right on the eye of human face. Focus point is increased from 23 (DMC-GH3) to 49 points for more flexible composition together with Custom Multi AF mode in which users can freely select the blocks to focus out of the 49 focusing area. Now the 1-area AF area can be seamlessly magnified not only in manual but also in auto focus mode. Tracking AF is also advanced in the point of tracking accuracy by estimating the subject’s movement.
Focus point can be set on any part of the 100% field of view. The time to show magnified image can be selectable in Pin-point AF. Focus point can be magnified either with MF ring or with cursor key in MF Assist mode. In the Touch Pad AF, the position can be set either on absolute/relative coordinate. Together with the Eye Sensor AF which starts focusing by just looking into the viewfinder, the AF/AE lock button works for AF for quick auto focusing even when using LVF.*
In AFS, With LUMIX G VARIO 14-140mm / F3.5-5.6 ASPH. / POWER O.I.S. or LUMIX G X VARIO 12-35mm / F2.8 ASPH. / POWER O.I.S.
4. Stunning Mobility Supported by Mechanical Advancements
The DMC-GH4 boasts newly developed high-precision, high-speed dual OLED (Organic Light-Emitting Diode) displays for LVF (Live View Finder) and rear monitor. Increasing the resolution of display area to 2,359K-dot, the new 16:9 Wide Screen LVF boasts approx.1.34x / 0.67x (35mm camera equiv.) magnification and 100% field of view and eyepoint of approximately 21 mm. Thanks to the newly designed large eyecup, the visibility of LVF is dramatically improved. The image output between the LVF and the rear monitor is switched automatically with the eye sensor on the LVF, which features options of sensitivity – high, low and off – to reduce false operation during touching on the rear monitor. The 3.0-inch 1,036K-dot free-angle OLED rear monitor (3:2 aspect) with wide-viewing angle rotates 180° to the side and tilts 270° up and down offers approx. 100% of field of view. This rear monitor adopts static touch control for more smooth operation either in shooting or in playback. Both LVF and rear monitor adopts OLED to achieve high speed response with minimum time lag while enhancing the resolution. Notably, the OLED for the LVF in DMC-GH4 boasts 10,000:1 high contrast for superior color reproduction. Now the excellent visibility comes closer to OVF. On the other hand, live view image can be displayed in monochrome through LVF which enables shooting concentrating on contrast.
Even a moment’s waste matters in professional shooting condition but it is possible to make target setting intuitively with DMC-GH4. The 3 dials are equipped on the top and back of the camera and the main dial is now comes with lock structure. A dedicated button allows direct reach to exposure compensation, white balance adjustment or ISO setting and max.5 settings can be assigned to the Fn button. All these external components are designed to be operated easily without taking eyes off through the viewfinder.
To be tough enough to withstand even heavy field use, the main structure of the DMC-GH4 is composed of magnesium alloy full diecast front/rear frame. It also features splash / dustproof construction thanks to the sealing onto every joint, dial, and button. The shutter unit is also redesigned to be even more durable for approx. 200,000 times release*. It offers highest shutter speed at max. 1/8000 not only to capture spur-of-the-moment of fast moving subject but also to use high-speed lens with open aperture even in outdoors to give impressive defocus. Both built-in/external flash can be synchronized with max.1/250 second shutter speed*.
Panasonic in-house examination.
5. Expandability for A Variety of Workflows
Easy Wireless Connectivity via Wi-Fi® / NFC with Smartphones
The DMC-GH4 integrates Wi-Fi® connectivity (IEEE 802.11 b/g/n) with NFC (Near Field Communication) technology camera to offer more flexible shooting experience and instant image sharing with easy operation. With Panasonic “Image App”, remote shooting of both photo and video* is available by using the smartphone/tablet for a remote shutter with a monitor. Not only releasing a shutter, zooming, focusing and settings of shutter speed, aperture, exposure compensation are all controllable with a smartphone / tablet. All these flexible shooting / browsing / sharing style are made possible with the DMC-GH4 and the Panasonic’s dedicated application software Panasonic Image App for iOS / Android smartphones / tablets. It is also easy to embed geotag in the image after shooting. For the smartphone/tablet without NFC, the camera displays dedicated QR code on its monitor to complete pairing easily by reading the code.
The DMC-GH4 comes with a variety of connection terminals for more flexible shooting options. The 3.5mm microphone jack is for high quality audio recording using an external microphone and the 3.5mm headphone jack which enables monitoring the recording audio while shooting video real-time. It is also capable of real-time image output on the external monitor via an optional HDMI micro cable simultaneously while recording video. In addition to these, the DMC-GH4 complies with AV outputs (Audio 2ch, Composite), flash sync terminal and 2.5mm jack for remote controller.
For reliable recording of rich video, the DMC-GH4 complies with UHS Speed Class 3 (U3) which is the new speed class standard of SD memory card. The UHS Speed Class 3 (U3) guarantees a constant minimum write speed of 30MB/s to respond to market needs for 4K video.
A GN58 powerful External Flash (DMW-FL580L) is newly added to the LUMIX G optional accessories which allows high speed charging of approx.1.7 sec. Not only wireless control but also LED video light function are available. The Stereo / Shotgun Microphone (DMW-MS2) which enables stereo/shotgun
switch even allows more precise sound recording with selectable Super Shotgun / Lens Auto / Manual option on DMC-GH4.
6. Other Features
Luminance Level Adjustment
Just as the concept of “ultimate hybrid Digital Single Lens Mirrorless camera” identifies, the DMC-GH4 supports smooth postproduction for photographers newly challenging videography. In addition to the standard luminance level of 16-235 and 16-255, DMC-GH4 offers 0-255 which is equivalent to photo standard (16-235, 16-255 and 0-255 are all 8-bit).
For more practical control over focusing, the DMC-GH4 incorporates Focus Peaking function that shows the peak of focus in MF and AF+MF mode. Users can see the peaking of focus while monitoring the subject in live view. It can be set to HIGH / LOW / OFF and the color can also be changed to blue, white or orange according to the color of the shooting scene during live view. Users can take advantage of this function when controlling the camera with smartphone / tablet via Wi-Fi in both photo / video recording.
This mode switches shutter from mechanical to electronic and turns all sound (AF, operation) off while suppress emission of AF assist lamp and flash with just a single setting for special shooting occasions.
The Live View function is also advanced digitally making it possible to adjust highlight / shadow separately with the front/rear dial. 3 patterns of settings can be customized in addition to 3 patterns of preset.
RAW data development in Camera
The DMC-GH4 is capable of developing RAW image in camera. In addition to the color space setting ( sRGB / AdobeRGB ), the parameter of white balance, exposure compensation, contrast, highlight/shadow, saturation, noise reduction, sharpness or hue can be flexibly adjusted while LUMIX’s
Photo Style, Intelligent D-range Control, Intelligent Resolution can also be applied.
Interface Unit (DMW-YAGH)
Panasonic newly offers an Interface Unit (DMW-YAGH) exclusively for professional/industrial workflow with the DMC-GH4 that enables more powerful video transmission. It complies with Full HD (4:2:2 / 10-bit) four parallel outputs and these can be used for 4K (4:2:2 / 10-bit) output – both with time code*1. The XLR input terminals (2ch) are also equipped to connect line or condenser microphone. When connecting with microphone, volume can be controlled for L and R separately, which can be monitored LED audio level display on the back of the unit. The 12V DC IN is highly compliant with large-capacity industrial battery and continuously supplies the DMC-GH4 with power*2.
*1 — Setting the HDMI output picture quality [4:2:2 / 10bit]: You can output the image through the HDMI connection in higher picture quality, but you cannot record it as a motion picture or still pictures. Ideal when the HDMI output is to be saved on external devices. When using 4:2:2/10-bit output, simultaneous video recording onSDXC/SDHC Memory Card in the camera is not possible.
* 2 — HDMI output from the camera is not possible when the camera is mounted on the Interface Unit.
•The “AVCHD” is a high definition (HD) digital video recording / playback format jointly established by Panasonic Corporation and Sony
• “AVCHD Progressive”, “AVCHD”, the “AVCHD Progressive” Logo and the “AVCHD” Logo are trademarks of Panasonic Corporation and
•Android and Google Play are trademarks or registered trademarks of Google Inc.
• IOS is a trademark or registered trademark of Cisco in the U.S. and other countries and is used under license.
• HDMI, the HDMI Logo, and High-Definition Multimedia Interface are trademarks or registered trademarks of HDMI Licensing LLC in the
United States and other countries.
•All other company and product names are trademarks of their respective corporations.
•This unit is compatible with both SD/SDHC/SDXC Memory Cards. You can only use SDHC/SDXC Memory Cards on devices that are
compatible with them. You cannot use SDHC/SDXC Memory Cards on devices that are only compatible with SD Memory Cards. (When
using an SDHC/SDXC Memory Card on another device, be sure to read the operating instructions for that device.)
•SDHC Memory Cards and SDXC Memory Cards can be used only in equipment that is compatible with their respective formats.
• If the computer being used does not support SDXC Memory Cards, a message prompting you to format may appear. (Doing so will
cause recorded images to be erased so do not choose to format.) If the card is not recognized, please refer to the below support site.
http://panasonic.net/avc/sdcard/information/SDXC.html[Open New Window]
•Some accessories are not available in some countries.
•The use of recorded or printed materials that are protected by copyright for any purpose other than personal enjoyment is prohibited, as
it would infringe upon the rights of the copyright holder.
•Design and specifications are subject to change without notice.
Panasonic DMC-GH4 Specifications
||Digital Single Lens Mirrorless camera
||SD Memory Card, SDHC Memory Card, SDXC Memory Card (Compatible with UHS-I standard SDHC / SDXC Memory Cards)
|Image Sensor Size
||17.3 x 13.0 mm (in 4:3 aspect ratio)
||Micro Four Thirds mount
||Type: Live MOS Sensor
Total Pixels: 17.20 Megapixels
Camera Effective Pixels: 16.05 Megapixels
Color Filter: Primary color filter
Dust Reduction System: Supersonic wave filter
|Recording File Format
||Still Image: JPEG (DCF, Exif 2.3), RAW MPO (When attaching 3D lens in Micro Four Thirds System standard)
Motion Image: AVCHD Ver 2.0 compliant (AVCHD Progressive), MPEG4-AVC (H.264). (MOV, MP4)
||4:3, 3:2, 16:9, 1:1
||RAW, RAW+Fine, RAW+Standard, Fine, Standard MPO+Fine, MPO+Standard (When attaching 3D lens in Micro Four Thirds System standard)
||sRGB, Adobe RGB
|Still Image Resolution
||[4:3] 4,608 x 3,456 (L), 3,264 x 2,448 (M), 2,336 x 1,752 (S), 1,824 x 1,368 (When attaching 3D lens in Micro Four Thirds System standard)[3:2] 4,608 x 3,072 (L), 3,264 x 2,176 (M), 2,336 x 1,560 (S), 1,824 x 1,216 (When attaching 3D lens in Micro Four Thirds System standard)[16:9] 4,608 x 2,592 (L), 3,264 x 1,840 (M), 1,920 x 1,080 (S), 1,824 x 1,024 (When attaching 3D lens in Micro Four Thirds System standard)
|Still Image Resolution cont.
||[1:1] 3,456 x 3,456 (L), 2,448 x 2,448 (M), 1,744 x 1,744 (S), 1,712 x 1,712 (When attaching 3D lens in Micro Four Thirds System standard)
||MOV: [4K] 3840×2160 – [Full HD] 1920×1080 – [C4K] 4096×2160
MP4: [4K] 3840×2160 – [Full HD] 1920×1080 – [HD] 1280×720 – [VGA] 640×480 – [C4K] 4096×2160
|Continuous Record Time (Motion Image)
||AVCHD: Approx. 220 min with H-HS12035
AVCHD: Approx. 220 min with H-FS14140
|Actual Record Time (Motion Image)
||IEEE 802.11b/g/n, 2412 MHz – 2462 MHz (11 ch), Wi-Fi / WPA / WPA2, Infrastructure mode, WPS, Wi-Fi Direct
||ISO/IEC 18092, NFC-F (Passive Mode)
|QR Code Connection
||Type: OLED Live View Finder (2,359K dots equivalent)
Field of View: Approx. 100%
Magnification: Approx. 1.34x / 0.67x (35 mm camera equivalent)
Eye Point: Approx. 21 mm from eyepiece lens
Diopter Adjustment: -4.0 – +4.0 (dpt)
Auto Eye Sensor: Yes
||Type: Contrast AF system
Focus Mode: AFS (Single) / AFF (Flexible) / AFC (Continuous) / MF
AF Mode: Face detection / AF Tracking / 49-area-focusing / 1-area-focusing / Pinpoint (Full area touch is available)
AF Assist Lamp: Yes
AF Lock: Yes (AF/AE LOCK button)
One Shot AF, Shutter AF, Half Press Release, Quick AF, Continuous AF (during motion picture recording), Eye Sensor AF, AF+MF, MF Assist, Touch MF Assist, Focus Peaking, Touch AF/AE
|Light Metering System
||1,728-zone multi-pattern sensing system (TBD)
|Light Metering Mode
||Multiple / Center Weighted / Spot
||EV 0 – 18 (F2.0 lens, ISO100 equivalent)
||Program AE / Aperture Priority AE / Shutter Priority AE / Manual
||Auto / Intelligent ISO / 100 (Extended) / 200 / 400 / 800 / 1600 / 3200 / 6400 / 12800 / 25600 (Changeable to 1/3 EV step) (Up to ISO6400 in motion picture recording) (ISO Auto in M mode)
||1/3 EV Step, ±5 EV (±3 EV for motion image)
||AF/AE LOCK button
||3, 5, 7 frames, in 1/3, 2/3 or 1 EV Step, single / burst
||Auto / Daylight / Cloudy / Shade / incandescent / Flash / White Set 1, 2, 3, 4 / Color temperature setting
|White Balance Adjustment
||Blue/Amber bias, Magenta/Green bias
|Color Temperature Setting
||2500-10000K in 100K
|White Balance Bracket
||3 exposures in blue/amber axis or in magenta/green axis
||Still image: Bulb (Max. 60 minutes), 1/8,000 – 60
Motion picture: 59.94Hz: 1/16,000 – 1/30, 50.00Hz: 1/16,000 – 1/25, 24.00Hz: 1/16,000 – 1/24 (24.00Hz: 1/16,000 – 1/24 (When using Synchro Scan)
||Approx. 200,000 images
||10sec, 3 images / 2sec / 10sec
||Remote control with Bulb function by DMW-RSL1 (Optional)
||Mechanical shutter: H: 12.0 frames/sec (with AFS), 7.5 frames/sec (with AFC) (TBD), M: 7.5 frames/sec (with Live View), L: 2.0 frames/sec (with Live View)
Electronic shutter: SH: 40.0 frames/sec, H: 20.0 frames/sec, M: 7.5 frames/sec (with Live View), L: 2.0 frames/sec (with Live View)”
|Number of Recordable Images
||Approx. 40 images (when there are RAW files with the particular speed)
Approx. 100 images (when there are no RAW files)
Approx. 120 images (when using electronic shutter) (depending on memory card size, battery power, picture size, and compression)”
||Built-in Flash: TTL Built-in-Flash, GN12.0 equivalent (ISO100 · m), GN17.0 (ISO200 · m), Built-in Pop-up (Reference)
Flash Mode: Auto, Auto / Red-eye Reduction (when iA, iA+), Forced ON, Forced ON / Red-eye Reduction, Slow Sync., Slow Sync. / Red-eye Reduction
Sync Speed: Less than 1/160 second
Flash Output Adjust: 1/3 EV Step ±3 EV
Flash Sync: 1st Curtain Sync., 2nd Curtain Sync
Sync for Flash Dimming and Exposure Compensation: Yes (ON / OFF)
Flash Sync Socket: Yes
||Type: OLED monitor with static touch control
Monitor Size: Free-angle 3.0 inch (7.5 cm) / 3:2 Aspect / Wide-viewing angle
Pixels: 1036K dots
Field of View: Approx. 100%
Brightness (7 levels), Color (7 levels), Red-Green (11 levels), Blue-Yellow (11 levels)
||Digital Zoom: 2x, 4x
Extra Tele Conversion: Still image: Max. 2x (Aspect ratio sets at 4:3. Not effective with L size recording. Magnification ratio depends on the recording pixels and aspect ratio.) Motion picture: 2.4x (FHD), 3.6x (HD), 4.8x (VGA)
Other functions: Level Gauge, Real-time Histogram, Guide Lines (3 patterns), Center Marker, Highlight display (Still image / motion picture), Zebra pattern (Still image / motion picture)
||Still Image and Motion Image: Standard / Vivid / Natural / Monochrome / Scenery / Portrait / Custom
|Creative Control Still Image
||Expressive / Retro / High Key / Low Key / Sepia / Dynamic Monochrome / Impressive Art / High Dynamic / Cross Process / Toy Effect / Miniature Effect / Soft Focus / Star Filter / One Point Color
|Creative Control Motion Image
||Expressive / Retro / High Key / Low Key / Sepia / Dynamic Monochrome / Impressive Art / High Dynamic / Cross Process / Toy Effect / Miniature Effect / One Point Color
|Creative Video Mode Exposure Mode
||Program AE / Aperture-Priority / Sutter-Priority / Manual Exposure
|Motion Picture Function
||Master pedestal level: 31 steps
luminance level: 0-255 / 16-235 / 16-255
Synchro scan: Yes
Time code: Count Up: Rec Run/Free Run selectable, Time Code Mode: Drop frame/Non-drop frame selectable (When system frequency [59.94Hz] is selected.)
SS/Gain operation: Shutter Duration/ISO / Angle/ISO / Shutter Duration/dB
Color bars / 1K Hz test tone: Yes (SMPTE / EBU / ARIB) / Yes
Cinelike gamma: Cinelike D / Cinelike V
||Normal playback, 30-thumbnail display, 12-thumbnail display, Calendar display, Zoomed playback (Max. 16x), Slideshow (All / Picture Only / Video Only / 3D / Category Selection / Favorite, duration & effect is selectable), Playback Mode (Normal / Picture / Video / 3D Play / Category / Favorite), Location Logging, RAW Processing, Clear Retouch, Title Edit, Text Stamp, Video Divide, Time Lapse Video, Stop Motion Video, Resize, Cropping, Rotate, Rotation Display, Favorite, DPOF Print Set
|Image Protection / Erase
||Protection: Single / Multi, Cancel
Erase: Single / Multi / All / Except Favorite
||Direct Print: PictBridge compatible
||USB 2.0 High Speed
||4:2:2 8-bit / 4:2:2 10-bit (When 4:2:2 10-bit mode is selected, it is not possible to record motion picture or still picture on the SD memory card in the camera unit.)
information display ON/OFF (selectable)
Automatic down-conversion (4K } 1080p only)
||miniHDMI TypeD / VIERA Link, Audio: Stereo
59.94Hz: Auto / 4K / 1080p / 1080i / 720p / 480p
50.00Hz: Auto / 4K / 1080p / 1080i / 720p / 576p
24.00Hz: Auto / C4K / 4K / 1080p
(4:2:2 10-bit or 4:2:2 8-bit is selectable.)
|Audio Video Output
||2.5mm for remote
|External Microphone Input
||3.5mm for external microphone
||3.5mm for headphone
||Stereo, Wind-cut: OFF / Low / Standard / High / Auto
||English, German, French, Italian, Spanish, Polish, Czech, Hungarian, Russian, Chinese (Traditional), Chinese (Simplified), Dutch, Thai, Korean, Turkish, Portuguese, Arabic, Persian, Japanese, Swedish, Danish, Finnish, Greek, Vietnamese
||Li-ion Battery Pack (7.2V, 1,860mAh) (Included)
||Approx. 500 images with H-HS12035
Approx. 500 images with H-FS14140″
||32 to 104°F (0 to 40°C)
||PHOTOfunSTUDIO 9.5 PE (Windows XP / Vista / 7 / 8)
SILKYPIX® Developer Studio 4.1 SE (Windows XP / Vista / 7 / 8, Mac
OS X v10.5 / v10.6 / v10.7 / v10.8)
LoiLoScope (trial version) (Windows XP / Vista / 7 / 8)”
||5.23 x 3.68 x 3.23″ (132.9 x 93.4 x 82.0mm) excluding protrusions
||Approx. 560g / 19.75 oz (SD card, Battery, Body)
Approx. 480g / 16.93 oz (Body only)
Approx. 865g / 30.51 oz (SD card, Battery, H-HS12035 lens included)
Approx. 825g / 29.10 oz (SD card, Battery, H-FS14140 lens included)
||External flash: DMW-FL580L (optional), Wireless Channel: 1ch/2ch/3ch/4ch
Interface unit: DMW-YAGH
AC adaptor: DMW-AC10
External microphone: DMW-MS2 Stereo/Lens Auto/Shotgun/Super Shotgun/Manual
Battery grip: DMW-BGGH3
Panasonic GH4 Sample Video