GeekRadar / The comparison desk
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Cameras
Nikon

Nikon D5100

Camera

The sensor, in perspective.

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

Cameras

Nikon D5100

Sensor area indexGeometric · full frame = 100
36.3
Active dimensions
23.60 × 13.28 mm
Active area
313.29 mm²
Crop factor
1.60 ×
Area vs full frame
-1.46 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
23.60 mm
Reference active height
13.28 mm
Sensor technology
CMOS
Reference capture area
3:2 Open Gate (Full sensor)

Capture & exposure

Camera family
DSLR
Shutter
Rolling

Capture modes

  • 3:2 Open Gate (Full sensor)
    Active height
    13.28 mm
    Active width
    23.60 mm
    Horizontal pixels
    4,928 px
    Vertical pixels
    3,264 px
  • 1080p - Wide (Full sensor width)
    Active height
    13.28 mm
    Active width
    23.60 mm
    Horizontal pixels
    1,920 px
    Vertical pixels
    1,080 px