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Sony A7R IV is a Star Eater Camera ?

It’s look like Astro Photographers are not happy with the Sony A7R IV camera. While putting camera on longer exposure to capture night sky, due to the presence of strong noise reduction filter the A7RIV wipes out most of the stars from the scene. Take a look what Jim (Jim website) said about the camera

I’m not going to bury the lead here: the Sony a7RIV eats stars just about like the a7RIII does…except that the new behavior starts at 3.2 seconds instead of 4 seconds.

Sony should create a dedicated Star capture mode, and star trail for their camera like Olympus did years ago.

Also see – Sony A7R IV High ISO Test

Buy Sony A7R IV at Amazon.com | Sony A7R IV from B&H Store

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Sony A7R IV High ISO Test

Sony A7R IV camera packs Sony’s 61MP FF BSI CMOS sensor. We have no doubt that Sony A7R IV is industry leading high-resoltuion Mirrorless solution in FF lineup and after that we have Fuji GFX100 MF camera if we want more resolution.

Finally after a long gap we have high ISO test samples available in dpreview studio comparison tool. So, the link is at the end post if you want to play with others cameras. Before that let’s take a look at what ISO rating the noise starts to show off in Sony A7R IV RAW and JPEG file.

Usable ISO Range of Sony A7R IV in JPEG Mode

There are lot of people who grab JPEG files from the camera, Since they have no time to edit RAW photos. Specifically, I am talking about wedding and event shooters those who prefer JPEG most of the time.

Sony A7R IV Max JPEG usable ISO range is ISO 6400. After ISO 6400 we do get significant amount of noise in camera sample and it make it almost unusable for professional use or you need a strong noise reduction filter after ISO 6400 rating if you want to reduce noise.

Sony A7R IV @ RAW Mode

At Raw mode we can notice noise starts to appear after ISO 800 in Sony A7R IV camera.

via – dpreview image comparisontool

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Sony A7R IV vs Sony A7R III

Sony A7R IV vs Sony A7R III, the Sony A7R IV camera features major upgrade in the core specification of the camera. Let’s have a detailed look how Sony A7R IV camera is improved from inside to out.

1. Sony A7R IV vs Sony A7R III Sensor

Lens Mount Sony E Sony E
Camera Format Full-Frame (1x Crop Factor) Full-Frame (1x Crop Factor)
Pixels Actual: 62.5 Megapixel
Effective: 61 Megapixel
Actual: 43.6 Megapixel
Effective: 42.4 Megapixel
Maximum Resolution 9504 x 6336 7952 x 5304
Aspect Ratio 1:1, 3:2, 4:3, 16:9 3:2, 16:9
Sensor Type CMOS CMOS
Sensor Size 35.7 x 23.8 mm 35.9 x 24 mm
Image File Format JPEG, RAW JPEG, RAW
Bit Depth 14-Bit 14-Bit
Image Stabilization Sensor-Shift, 5-Axis Sensor-Shift, 5-Axis

2. 1.5X More Resolution

Sony A7R IV camera us using a brand new sensor, the sensor resolution is approx 1.5X more than of Sony A7R III. With 61 MP BSI CMOS sensor Sony A7R IV camera will show more details when compared to Sony A7R III.

3. 1.5X Faster Image Processor

Not only sensor the image processor of the camera is now 1.5X more faster compared to the image processer used in Sony A7R III. And due to that we will sure see some noticeable improvement in the image quality of the new camera.

4. ISO Range 50-102400

Sony engineers did a remarkable job to maintain the low-light performance of the camera. Despite of increase in the resolution (We all know as the resolution increases the photodiodes sizes gradually decreases resulting poor low light performance ) Sony A7R IV camera is able to deliver same ISO range as we have in the Sony A7R III.

5. Jpeg Image Quality Comparison

As you can clearly see the image of Sony A7R IV camera (left) have more details compared to Sony A7R III (in right).

6. Sony A7R IV vs Sony A7R III – Exposure

ISO Sensitivity Auto, 100 to 32000 (Extended: 50 to 102400) Auto, 100 to 32000 (Extended: 50 to 102400)
Shutter Speed Mechanical Shutter
1/8000 to 30 Second
Bulb Mode
1/8000 to 1/4 Second in Movie Mode
  1/8000 to 30 Seconds
1/8000 to 1/4 Second in Movie Mode
Bulb Mode
Metering Method Center-Weighted Average, Highlight Weighted, Multiple, Spot Center-Weighted Average, Multi-Zone, Spot, Highlight Weighted
Exposure Modes Aperture Priority, Manual, Program, Shutter Priority Aperture Priority, Auto, Manual, Program, Shutter Priority
Exposure Compensation -5 to +5 EV (1/3, 1/2 EV Steps) -5 to +5 EV (1/3, 1/2 EV Steps)
Metering Range -3 to 20 EV -3 to 20 EV
White Balance Auto, Cloudy, Color Temperature, Custom, Daylight, Flash, Fluorescent (Cool White), Fluorescent (Day White), Fluorescent (Daylight), Fluorescent (Warm White), Incandescent, Shade, Underwater Auto, Cloudy, Color Temperature, Custom, Daylight, Flash, Fluorescent (Cool White), Fluorescent (Daylight), Fluorescent (Warm White), Incandescent, Shade, Underwater
Continuous Shooting Up to 10 fps at 61 MP for up to 68 Exposures (JPEG) Up to 10 fps at 42.4 MP for up to 76 Exposures (Raw)
Interval Recording Yes 2/5/10-Second Delay
Self Timer 2/5/10-Second Delay

7. Buffer is also increased

Buffer  of the camera is also improved upto 1.5X according to the Sony. Now despite of larger file size,  the new bigger buffer can store upto 68 consecutive shots in a single burst.

 

8. Sony A7R IV vs Sony A7R III – Video

Recording Modes XAVC S
UHD 4K (3840 x 2160) at 23.976p/25p/29.97p [60 to 100 Mb/s]
Full HD (1920 x 1080) at 23.976p/24p/59.94p/100p/120p [16 to 100 Mb/s]
AVCHD
Full HD (1920 x 1080) at 50i/ 59.94i [17 to 24 Mb/s]
  XAVC S
UHD 4K (3840 x 2160) at 23.976p/25p/29.97p [60 to 100 Mb/s]
Full HD (1920 x 1080) at 23.976p/25p/29.97p/ 59.94p/ 100p/120p [100 Mb/s]
HD (1280 x 720) at 100p/120p [50 Mb/s]
AVCHD
Full HD (1920 x 1080) at 50p/ 59.94p [28 Mb/s]
Full HD (1920 x 1080) at 23.976p/25p/50i/59.94i [17 to 24 Mb/s]
External Recording Modes 4:2:2 8-Bit
DCI 4K (4096 x 2160) at 23.976p/25p/ .97p
Full HD (1920 x 1080) at 23.976p/50i/50p/59.94i/ 59.94p
  4:2:2 8-Bit
UHD 4K (3840 x 2160) at 24.00p/25p/29.97p
Full HD (1920 x 1080) at 24.00p/50i/50p/59.94i/59.94p
Recordig Limit Up to 29 Minutes Up to 29 Minutes
Video Encoding NTSC/PAL NTSC/PAL
ISO Sensitivity Auto: 100 to 12800
Manual: 100 to 32000
Built-In Microphone (Stereo)
External Microphone Input
Audio Recording Built-In Microphone (Stereo)
External Microphone Input (Stereo)
AC3, Dolby Digital 2ch, Linear PCM (Stereo)

We do have slight improvement in the external video recording mode of the Sony A7R IV camera, now you can record DCI 4K video in Sony A7R IV camera which was limited to UHD 4K in Sony A7R III.

The Sony a7R IV can capture full-frame 4K oversampled from 6K, that clearly means no pixel binning and you are getting maximum image quality possible. However, Sony A7R III also uses the same process to create 4K video.

So, we don’t have any major difference in the Video quality of both the camera despite of enjoying a major specs upgrade in the still part of A7R IV.

9. Sony A7R IV vs Sony A7R III – AutoFocus

Focus Type Auto and Manual Focus Auto and Manual Focus
Focus Mode Automatic (A), Continuous-Servo AF (C), Direct Manual Focus (DMF), Manual Focus (M), Single-Servo AF (S) Automatic (A), Continuous-Servo AF (C), Direct Manual Focus (DMF), Manual Focus (M), Single-Servo AF (S)
Autofocus Points Phase Detection: 567
Contrast Detection: 425
Phase Detection: 399
Contrast Detection: 425
Autofocus Sensitivity -3 to +20 EV -2 to +20 EV

The Autofocus sensitivity of the camera increased upto 1 stop and at the same time the Focus point are also increased upto 567, which enables more better AF coverage than Sony A7R III. The AF points of the camera cover up more than 75% of the viewable area of the screen.

10. Sony A7R IV vs Sony A7R III – Viewfinder and Monitor

Viewfinder Type Electronic (OLED) Electronic
Viewfinder Size 0.5″ 0.5″
Viewfinder Resolution 5,760,000 Dot 3,686,400 Dot
Viewfinder Eye Point 23 mm 23 mm
Viewfinder Coverage 100% 100%
Viewfinder Magnification Approx. 0.78x Approx. 0.78x
Diopter Adjustment -4.0 to +3.0 -4.0 to +3.0
Monitor Size 3″ 3″
Monitor Resolution 1,440,000 Dot 1,440,000 Dot
Monitor Type Tilting Touchscreen LCD Tilting Touchscreen LCD

Viewfinder resolution of the screen is dramatically improved, the Sony A7R IV camera now features class leading viewfinder.

11. Pixel shift (240 vs 168 MP)

The Sony A7R IV camera now features 240MP high resolution mode, the Sony A7R III was limited to 168 Megapixels only. With Sony A7R IV you will get super high resolution images and enormous amount of details compared to A7R III.

12. DSLR like Hand-grip

The handgrip of the Sony A7R IV camera is drastically improved handgrip compared to Sony A7R III, if you are  DSLR user you will find Sony A7R IV camera more friendly to your hands compared to Sony A7R III.

13. physical size

Battery 1 x NP-FZ100 Rechargeable Lithium-Ion, 7.2 VDC, 2280 mAh (Approx. 530 Shots)   1 x NP-FZ100 Rechargeable Lithium-Ion, 7.2 VDC, 2280 mAh (Approx. 530 Shots)
Dimensions (W x H x D) 5.07 x 3.8 x 3.05″ / 128.9 x 96.4 x 77.5 mm 5 x 3.8 x 2.9″ / 126.9 x 95.6 x 73.7 mm
Weight 1.46 lb / 665 g 1.45 lb / 657 g

 Conclusion

Sony A7R III camera arrived with major specs upgrade in still shooting part, you are getting better sensor, more AF point more improved image processor and bigger buffer compared to Sony A7R III. The video part of the camera more or less remains same. So, if you are looking for an upgrade from Sony A7R III, you should go for it if you are a still shooter.

Buy Sony A7R IV camera from Amazon.com | B&H Store

Sony A7R IV Pre-order Started at B&H Store

Finally pre-order of Sony A7R IV started at B&H store, Click here to pre-order Sony A7R IV camera.

Click here to see the sample image of Sony A7R IV and click here to view the announcement page of the camera.

Sony A7R IV Sample Images

So, finally we have the sample images of the Sony A7R IV camera. The camera exhibit amazing amount of details even when viewed at 100%. you can check the Sony A7R IV announcement page here.

Click here to download high resolution images

Pre-order / Buy Sony A7R IV camera from B&H

More Sample Images from Sony A7R IV

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Sony A7R IV Camera to be Announced Soon, Uses 61MP FF Sensor

Rumors suggest Sony A7R IV camera is coming with a brand new 61MP sensor. Take a look what Japanese sources said about Sony announcement

Sony’s α7R IV is said to have a 61 million pixel sensor. At this time, the model number of “ILCE-7RM4”, “VG-C4EM”, and “XLR-K3M” has been confirmed.

Sensor used in Sony A7R IV

The IMX 455 is a Hybrid Sensor can carries phase detect AF points inside it, so for sure this sensor will be used in Nikon upcoming Mirrorless camera [possibly Nikon Z8]. Now a altered version of the same sensor [without phase detect AF pixels inside it] can be used in Nikon D850 successor, the upcoming Nikon D860 / D900 DSLR.

Sony 60 MP Sensor specification

  • IMX455 (Low-Spec of IMX551 Prototype):
  • Effective pixels: 9600×6400
  • Recommend recording pixels: 60MP
  • 11/12/14/16Bit ADC
  • Full Pixel 9fps/14Bit ADC
  • SLVS-EC 8Lane
  • Single ADC in Video Mode
  • 12-ADC in Still Picture Mode
  • Native ISO 64/400

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Sony Upcoming Cameras 2019

let’s talk about the list of upcoming Sony camera in the year of 2019. The most awaited camera is of-course the Sony A7 S III. We have heard a lot about its features in rumor mills, Sony also confirmed via interviews that Camera will have more than what people are expecting. Sony A7S III camera is rumored to arrive at the first or second quarter of 2019. But not only Sony A7 S III, me to have a list of cameras those who are expected to arrive this year.

1. Sony A7S III

Sony A7S III camera is expected to arrive in the 1st or 2nd quarter of 2019. We have a lot of leaked information related to upcoming Sony A7S III camera (check all here). The Upcoming Sony A7S III camera is expected to arrive with 8k or 6k video recording capability. Not only that, we have also got some hints that Sony may use 36 megapixel full frame sensor inside the Sony upcoming A7S III camera (however, Sony uses low res sensor in A7S series camera, so we are waiting for further confirmation). And one more information surprised us that upcoming camera may feature Dual base ISO, for the first time in any Sony Mirrorless camera. It’s bit obvious to have improved built-in IS and new Hybrid AI based AF system. Sony A7S III camera is coming with a big jump in core specification that we have seen inside the Sony A7S II camera.

2. Sony A7R IV

Sony A7 IV camera is also expected to arrive in the year of 2019. Now, if we look in past Sony have a good history of announcing the Sony A7R series camera after a year of gap. If Sony follows the same schedule then we will sure have our new Sony A7R IV camera possibly in the month of June or maybe October of 2019. Take a look at the scheduled announcement timelines of Sony A7R Series camera

 Announcement Timeline  Camera Names
Oct, 2013 Sony A7R
June, 2015 Sony A7R II
Oct, 2017 Sony A7R III
2019 Sony A7R IV

Recently, We have received information that Sony successfully developed a new 60 megapixel full frame sensor. The sensor is also capable to record 8K videos. However at the moment we don’t have any concrete details about the Sony A7R IV camera. There are lot of fussy information floating on the web, but none of them look reliable to us. We will update you soon once any solid information about the upcoming camera.

3. Sony A6700

Sony A6700 announcement is also expected in the year of 2019. We have received strong hints in past that Sony will announce their APS-C flagship camera in Q1 / Q2 of 2019. We have also received initial set of leaked specification that suggest the camera will carry 26 MP APS-C CMOS sensor, 12fps of continuous shooting mode and 4K @ 60p with 10 bit output. The sensor based image stabilization system is more improved compared to previous generation of IBIS.

4. Sony A9 II

Sony A9 II announcement is also expected at the end of 2019. Sony A9 II is said to be 1dx Mark III and Nikon D6 killer. The camera will feature 8k video recording capability, and there is big possibility that we may see the 36 megapixel full frame sensor, Improved AI based auto-focusing system. And lot more improvement compared to the existing Sony A9 camera. Sony will sure announce A9 successor at the end of 2019 to flush up the Canon 1DX Mark III and Nikon D6 announcement.

also see – Sony A9 II, A7S III and A7R IV to Feature 8K Video Recording Capability

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