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Firmware Update

Panasonic GH4 Major Firmware Update


Panasonic announced today a new and major firmware upgrade today. The new update will add post focus and 4K burst mode to the camera, more details available in the company press release.

DMC-GH4 Firmware Update Version 2.5
Newark, NJ (March 16, 2016) – Panasonic has today announced the new firmware update Version 2.5 for the DMC-GH4 to further enhance its performance at no charge. The new firmware Version 2.5 includes following functional updates:

-Post Focus
Post Focus is a special function that enables users to select an in-focus point after shooting. It has already been integrated in new LUMIX cameras such as the GX8. With this function, users can enjoy changing the perspective for greater photographic expression or to choose the best in-focus shot for macro shooting.

-4K PHOTO (4K Burst / 4K Burst (Start/Stop) / 4K Pre-burst)
With 4K PHOTO mode there are three dedicated modes – 4K Burst / 4K Burst (Start/Stop) / 4K Pre-burst – are all now available on LUMIX GH4*. The addition of these modes further enhances the usability of 4K PHOTO to capture fleeting photo opportunities at 30p.

-External Flash Burst
Consecutive shooting with flash burst is available with an external flash that is capable of continuous emission. This includes the following Panasonic models: DMW-FL580L, DMW-FL360L, DMW-FL500, DMW-FL360 and DMW-FL220.

The new DMC-GH4 firmware Version 2.5 is scheduled to be released at the end of March 2016 at the LUMIX Customer Support website:

Get Panasonic V-Log L Function Activation Code

Panasonic-GH4-with-V-logPanasonicFinally Adds V-Log L Gamma Profile to GH4, but it’s isn’t free and its activation code is Can be purchased from here.

Take a look at the Major features of the Update

  • Wide Dynamic Range of up to 12 Stops
  • Improved Color Matching with Varicam
  • Similar Characteristics to Cineon
  • Same LUT and Curve as Standard V-Log

Maximize the dynamic range of the Lumix DMC-GH4 with this V-Log L Function Activation Code from Panasonic. This code allows you to easily install the V-Log L gamma onto the camera, giving you a flat profile that provides a wide dynamic range of up to 12 stops, improving upon the 10 stops previously attainable with the GH4.

How Panasonic DFD Technology Work?

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.

Panasonic GX8 vs. Panasonic GH4

Panasonic Lumix DMC-GX8 vs. Panasonic GH4 1

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…

Major Difference

Panasonic Lumix DMC-GX8 vs. Panasonic GH4 Specification Comparison Table.

Features / Models Panasonic GX8 Panasonic GH4
Megapixel 20 megapixels 16.5 megapixels
Sensor size / type Four Thirds (17.3 x 13 mm) Four Thirds (17.3 x 13mm)
Low-Pass-Filter Yes Yes
AF System Contrast Detect (sensor) Contrast Detect (sensor)
AF points 49 49
ISO 100-25600 100-25600
Shutter Min/Max 60 sec 1/16000 sec 60 sec 1/8000 sec
Top Continuous Shooting Speed 10fps 12fps
Video 3840 x 2160 (30p, 24p) 4096 x 2160 (24p)
Display 3″ Rear Touchscreen Swivel Touchscreen OLED (1,040,000) 3″ Touch screen Swivel  OLED (1,036,000)
Viewfinder EVF 100% EVF 100%
Hot-shoe Yes Yes
Wireless Built-In with NFC Built-In
Battery Life (CIPA) 330 shots 500 shots
Dimensions  133 x 78 x 63 mm 133 x 93 x 84 mm
Weight 487g 560g

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.

Panasonic Lumix DMC-GX8 vs. Panasonic GH4 2

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

Panasonic GH4 vs Fuji X-T1

GH4-vs-X-T1-image 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

Panasonic GH4 vs 5D Mark III - High ISO Test

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

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

Panasonic GH4 vs 5D Mk III vs Blackmagic Pocket Cinema Camera


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