Nikon Coolpix L25


Brand: Nikon
Model: Coolpix L25
Megapixels: 10.10
Sensor: 1/3" (~ 4.8 x 3.6 mm)
Price: check here »

Sensor info

Nikon L25 comes with a 1/3" (~ 4.8 x 3.6 mm) image sensor, which has a diagonal of 6.00 mm (0.24") and a surface area of 17.28 mm².
6.00 mm
Surface area
17.3 mm²
Pixel pitch
1.31 µm
Pixel area
1.72 µm²
Pixel density
58.3 MP/cm²
If you want to know about the accuracy of these numbers, click here.

Actual sensor size

Note: Actual size is set to screen → change »
This is the actual size of the L25 sensor: ~4.8 x 3.6 mm
The sensor has a surface area of 17.3 mm². There are approx. 10,100,000 photosites (pixels) on this area. Pixel pitch, which is a measure of the distance between pixels, is 1.31 µm. Pixel pitch tells you the distance from the center of one pixel (photosite) to the center of the next.

Pixel or photosite area is 1.72 µm². The larger the photosite, the more light it can capture and the more information can be recorded.

Pixel density tells you how many million pixels fit or would fit in one square cm of the sensor. Nikon L25 has a pixel density of 58.3 MP/cm².

These numbers are important in terms of assessing the overall quality of a digital camera. Generally, the bigger (and newer) the sensor, pixel pitch and photosite area, and the smaller the pixel density, the better the camera. If you want to see how L25 compares to other cameras, click here.


Brand: Nikon
Model: Coolpix L25
Effective megapixels: 10.10
Total megapixels: 10.44
Sensor size: 1/3" (~ 4.8 x 3.6 mm)
Sensor type: n/a
Sensor resolution: 3665 x 2756
Max. image resolution: 3648 x 2736
Crop factor: 7.21
Optical zoom:
Digital zoom:
RAW support:
Manual focus:
Normal focus range:
Macro focus range:
Focal length (35mm equiv.):
Aperture priority:
Max aperture:
Max. aperture (35mm equiv.): n/a
Depth of field: simulate →
Exposure Compensation:
Shutter priority:
Min. shutter speed:
Max. shutter speed:
Built-in flash:
External flash:
Viewfinder: None
White balance presets:
Screen size:
Screen resolution:
Video capture:
Storage types:
Year: 2012

Compare L25 with another camera



The diagonal of L25 sensor is not 1/3 or 0.33" (8.5 mm) as you might expect, but approximately two thirds of that value - 0.24" (6 mm). If you want to know why, see sensor sizes.

Diagonal is calculated by the use of Pythagorean theorem:
Diagonal =  w² + h²
where w = sensor width and h = sensor height

Nikon L25 diagonal:

w = 4.80 mm
h = 3.60 mm
Diagonal =  4.80² + 3.60²   = 6.00 mm

Surface area

Surface area is calculated by multiplying the width and the height of a sensor.

Width = 4.80 mm
Height = 3.60 mm

Surface area = 4.80 × 3.60 = 17.28 mm²

Pixel pitch

Pixel pitch is the distance from the center of one pixel to the center of the next measured in micrometers (µm). It can be calculated with the following formula:
Pixel pitch =   sensor width in mm  × 1000
sensor resolution width in pixels

Nikon L25 pixel pitch:

Sensor width = 4.80 mm
Sensor resolution width = 3665 pixels
Pixel pitch =   4.80  × 1000  = 1.31 µm

Pixel area

The area of one pixel can be calculated by simply squaring the pixel pitch:
Pixel area = pixel pitch²

You could also divide sensor surface area with effective megapixels:
Pixel area =   sensor surface area in mm²
effective megapixels

Nikon L25 pixel area:

Pixel pitch = 1.31 µm

Pixel area = 1.31² = 1.72 µm²

Pixel density

Pixel density can be calculated with the following formula:
Pixel density =  ( sensor resolution width in pixels )² / 1000000
sensor width in cm

You could also use this formula:
Pixel density =   effective megapixels × 1000000  / 10000
sensor surface area in mm²

Nikon L25 pixel density:

Sensor resolution width = 3665 pixels
Sensor width = 0.48 cm

Pixel density = (3665 / 0.48)² / 1000000 = 58.3 MP/cm²

Sensor resolution

Sensor resolution is calculated from sensor size and effective megapixels. It's slightly higher than maximum (not interpolated) image resolution which is usually stated on camera specifications. Sensor resolution is used in pixel pitch, pixel area, and pixel density formula. For sake of simplicity, we're going to calculate it in 3 stages.

1. First we need to find the ratio between horizontal and vertical length by dividing the former with the latter (aspect ratio). It's usually 1.33 (4:3) or 1.5 (3:2), but not always.

2. With the ratio (r) known we can calculate the X from the formula below, where X is a vertical number of pixels:
(X × r) × X = effective megapixels × 1000000    →   
X =  effective megapixels × 1000000
3. To get sensor resolution we then multiply X with the corresponding ratio:

Resolution horizontal: X × r
Resolution vertical: X

Nikon Coolpix L25 sensor resolution:

Sensor width = 4.80 mm
Sensor height = 3.60 mm
Effective megapixels = 10.10
r = 4.80/3.60 = 1.33
X =  10.10 × 1000000  = 2756
Resolution horizontal: X × r = 2756 × 1.33 = 3665
Resolution vertical: X = 2756

Sensor resolution = 3665 x 2756

Crop factor

Crop factor or focal length multiplier is calculated by dividing the diagonal of 35 mm film (43.27 mm) with the diagonal of the sensor.
Crop factor =   43.27 mm
sensor diagonal in mm

Nikon L25 crop factor:

Sensor diagonal = 6.00 mm
Crop factor =   43.27  = 7.21

35 mm equivalent aperture

Equivalent aperture (in 135 film terms) is calculated by multiplying lens aperture with crop factor (a.k.a. focal length multiplier).

Nikon Coolpix L25 equivalent aperture:

Aperture is a lens characteristic, so it's calculated only for fixed lens cameras. If you want to know the equivalent aperture for Nikon Coolpix L25, take the aperture of the lens you're using and multiply it with crop factor.

Crop factor for Nikon L25 is 7.21

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