Sony A7S, A7R, Nikon D4s High ISO Comparison Gallery
We pitted the A7S against its cousin, as well as the current low-light champ, the D4s

Note: The following comparisons were are shot at the same exposures, and similar focal lengths. The A7S and A7R sample images were all captured as Extra Fine JPGs in the sRGB colorspace, and pulled directly from camera; they were captured on the same night. All three cameras were set to Auto White Balance. We apologize for the slight change in camera angle between samples. Tech Specs: ISO 1600, 1.6 sec, at f/5.6.Focal Length: 24mm (CLICK FOR FULL-RES) Click here to see how the D4s did at this ISO. Or head to the next slide to see the A7R sample.

Sony A7R at ISO 1600
Focal Length: 24mm

Sony A7S at ISO 3200
Focal Length: 24mm

Sony A7R at ISO 3200
Focal Length: 24mm

Sony A7S at ISO 6400
Focal Length: 24mm

Sony A7R at ISO 6400
Focal Length: 24mm

Sony A7S at ISO 12800
Focal Length: 24mm

Sony A7R at ISO 12800
Focal Length: 24mm

Sony A7S at ISO 25600
Focal Length: 24mm

Sony A7R at ISO 25600
Focal Length: 24mm

Sony A7S at ISO 51200
Focal Length: 24mm

Sony A7S at ISO 102400
Focal Length: 24mm

Sony A7S at ISO 204800
Focal Length: 24mm

Sony A7S at ISO 409600
Focal Length: 24mm