Sony A7s III

The sensor, in perspective.

Capture area at a shared scale. The dashed outline is a 36 × 24 mm full-frame reference.

Cameras

Capture area

Sensor area indexGeometric · full frame = 100: 98.0
Active dimensions: 35.60 × 23.78 mm
Active area: 846.57 mm²
Crop factor: 1.01 ×
Area vs full frame: -0.03 stops

The index is calculated from area, assuming equal scene illumination, f-number and exposure time. It is not a low-light test or an image-quality score: lens transmission, quantum efficiency, noise and processing are not included. A crop mode changes the area used, not the physical sensor.

Dynamic range ≠ EV operating range. Autofocus and metering limits describe operating conditions. Manufacturer HDR claims appear separately below; independent dynamic-range measurements require a matched test method, ISO and noise threshold.

Sensor specifications

Reference active width: 35.60 mm
Reference active height: 23.78 mm
Sensor technology: CMOS
Reference capture area: 3:2 Open Gate (Full Frame Stills)

Capture & exposure

Camera family: Mirrorless
Shutter: Rolling

Capture modes

3 capture modes

3:2 Open Gate (Full Frame Stills)
Active height
23.78 mm
Active width
35.60 mm
Horizontal pixels
4,240 px
Vertical pixels
2,832 px
4K UHD - Wide (Video crop)
Active height
18.14 mm
Active width
32.24 mm
Horizontal pixels
3,840 px
Vertical pixels
2,160 px
3:2 Still APS-C
Active height
15.52 mm
Active width
20.69 mm
Horizontal pixels
2,464 px
Vertical pixels
1,848 px