CameraLore
Archive illustration for Nikon Coolpix S31

Quick facts

Full name: Nikon Coolpix S31

Original position: Compact fixed-lens camera with a small sensorProduction status: Production status not verified
Regional aliases
No verified regional aliases
Similar models to distinguish
Coolpix L830Coolpix S5300Coolpix S6800Coolpix S6900
Editorial guidance, not a verified specificationWhy it is still searched

Nikon Coolpix S31 is still searched because older compact cameras interest collectors, second-hand buyers, and photographers seeking a period digital look.

Core specifications

Release year
2013 · Released about 13 years ago
Sensor
4.96 × 3.72 mm CCD
Effective resolution
10.1 MP
Lens
29 - 87 mm
Zoom
3×
Weight
185 g
Battery
Rechargeable Li-ion Battery EN-EL12 Li-ion battery
Storage
SD/SDHC/SDXC
View full specifications
Editorial guidance, not a verified specification

Who it may suit

May suit collectors, casual daylight shooting, or photographers intentionally seeking an older digital-camera look.

What to check before buying used

The checks below are editorial guidance. Verify the individual camera and seller information before buying.

  • Inspect the body, screen, doors, seals, and tripod socket for impact or moisture damage.
  • Test every button, dial, flash, screen, and viewfinder.
  • Photograph a plain bright surface to check for sensor dust, dead pixels, or damage.
  • Test focus and zoom across the full range; check the lens for haze, fungus, scratches, and errors.
  • Confirm the battery holds charge and that a compatible charger is included or available.
  • Test a supported memory card and inspect the card slot for bent pins or read errors.
  • Inspect the battery compartment and contacts for leakage or corrosion.

Sensor metrics

Diagonal
6.2 mm

Sensor diagonal

√(4.96² + 3.72²) = 6.2 mm

Calculated from sensor width and height using the Pythagorean theorem.

Surface area
18 mm²

Sensor surface area

4.96 × 3.72 ≈ 18 mm²

A larger area usually offers more space to collect light, though image quality also depends on sensor generation.

Pixel pitch
1.35 µm

Pixel pitch

4.96 ÷ 3,670 × 1000 = 1.35 µm

Pixel pitch is the distance between the centers of adjacent pixels. This result assumes square pixels.

Pixel area
1.83 µm²

Pixel area

1.35² = 1.83 µm²

Theoretical pixel area is the square of pixel pitch and does not subtract physical gaps between pixels.

Pixel density
54.74 MP/cm²

Pixel density

10.1 MP ÷ 18 mm² ≈ 54.74 MP/cm²

Higher density means more pixels per unit area. It does not represent image quality on its own.

Actual sensor size

Rectangles use their physical proportions. Calibrate your display to approximate real-world size.

Calibrate screen size

Enter your display diagonal so sensor rectangles are shown closer to their physical size.

4.96 × 3.72 mm

Full specifications

Imaging

Effective pixels
10.1 MP
Total pixels
10.34 MP
Sensor
4.96 × 3.72 mm CCD
Calculated resolution
3,670 × 2,752
Maximum image
3,648 × 2,736
Crop factor
6.98

Exposure & viewing

ISO
80–1,600
Viewfinder
None
Display
2.7 in / 230,000 dots
Lens mount
Fixed lens

Video & storage

Maximum video
—
Storage media
SD/SDHC/SDXC
Battery
Rechargeable Li-ion Battery EN-EL12 Li-ion battery

Body

Weight
185 g
Dimensions
105.4 × 64.8 × 41.5 mm
Release year
2013

Nikon Our Product History

Aperture Priority
No
Battery
Rechargeable Li-ion Battery EN-EL12
Brand
Nikon
Built In Flash
✓
Crop Factor
6.98
Depth Of Field
simulate →
Digital Zoom
Yes
Dimensions
105.4 x 64.8 x 41.5 mm
Effective Megapixels
10.10
Exposure Compensation
±2 EV (in 1/3 EV steps)
External Flash
—
Focal Length 35mm Equiv
29 - 87 mm
Gps
—
Hdmi
—
Iso
Auto, 80, 100, 200, 400, 800, 1600
Macro Focus Range
5 cm
Manual Focus
—
Max Aperture
f3.3 - f5.9
Max Aperture 35mm Equiv
f23 - f41.2
Max Image Resolution
3648 x 2736
Max Shutter Speed
1/2000 sec
Metering
Matrix, Center-weighted, Spot
Min Shutter Speed
4 sec
Model
Coolpix S31
Normal Focus Range
30 cm
Optical Zoom
3x
Raw Support
—
Screen Resolution
230,000 dots
Screen Size
2.7"
Sensor Resolution
3665 x 2756
Sensor Size
1/2.9" (~ 4.96 x 3.72 mm)
Sensor Type
CCD
Shutter Priority
No
Storage Types
SD/SDHC/SDXC
Total Megapixels
10.34
Usb
USB 2.0 (480 Mbit/sec)
Video Capture
—
Viewfinder
None
Weight
185 g
White Balance Presets
—
Wireless
—
Year
2013

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