I recently received the Sony A7R IV courtesy of BHPHotoVideo, and I wanted to share with you the ISO testing I just completed in the Lab for those interested.
The Sony A7R IV features a 61MP Full-Frame Exmor R BSI CMOS Sensor, and with that much resolution I would expect there will be some significant noise as the ISO goes beyond 6400.
So let’s find out shall we…
For this A7R IV ISO Testing I used the Sigma 105mm f/1.8 DG Lens at f/9 on a sturdy tripod with the 5-second self timer and of course raw quality.
Sony A7R IV – ISO Testing
Please be sure to click on the photos for a ~1500px view of the 100% Crops.
ISO = 102400 
ISO = 102400 
ISO = 102400 
ISO = 102400 
ISO = 51200 
ISO = 51200 
ISO = 51200 
ISO = 51200 
ISO = 25600 
ISO = 25600 
ISO = 25600 
ISO = 25600 
ISO = 12800 
ISO = 12800 
ISO = 12800 
ISO = 12800 
ISO = 6400 
ISO = 6400 
ISO = 6400 
ISO = 6400 
ISO = 3200 
ISO = 3200 
ISO = 3200 
ISO = 3200 
ISO = 1600 
ISO = 1600 
ISO = 1600 
ISO = 1600 
ISO = 800 
ISO = 800 
ISO = 800 
ISO = 800 
ISO = 400 
ISO = 400 
ISO = 400 
ISO = 400 
ISO = 200 
ISO = 200 
ISO = 200 
ISO = 200 
ISO = 100 
ISO = 100 
ISO = 100 
ISO = 100 
ISO = 50 
ISO = 50 
ISO = 50 
ISO = 50
RECOMMENDED ACCESSORIES:
- SD Card Reader: https://bhpho.to/2GciHfm
- Memory Cards: https://bhpho.to/2GNn7sT
- A7RIV Battery: https://bhpho.to/2WES7UJ
- Sony VG-C4EM Vertical Grip: https://bhpho.to/30qt74E
- Small Rig Camera Cage: https://bhpho.to/32CUoDS
- Quality Camera Straps: https://bhpho.to/2tNNUTk
- Shoulder Bags: https://bhpho.to/37g0b1p
- Backpack Bags: https://bhpho.to/2EPdOZ5
- Tripods: https://bhpho.to/2ZmvZi0
- Stabilization Gimbal: https://bhpho.to/3975dih
- Rode On-Camera Microphones: https://bhpho.to/2ENsjMO
- ND Lens Filters (select size): https://bhpho.to/30GHS36
- Polarizing Lens Filters (select size): https://bhpho.to/30OALG4
- UV Protective Lens Filters (select size): https://bhpho.to/2GbAWSo
Closing Remarks
As you can see based off these ISO Testing photos, the Sony A7R IV performs really well I would say overall considering the ultra high resolution 61MP Full-Frame Exmor R BSI CMOS Sensor. All the way to ISO 6400 is pretty darn clean, but at that point you really start to see the noise coming in when viewing at 100% in particular.
Please let me know what you think and if you have any questions, be sure to ask away in the comments area below 😉 Jay
- Sony A7R IV from $3198 US @ BHPhotoVideo
