Nikon Coolpix L120 vs. Samsung WB100

Comparison

Coolpix L120 image
vs.
WB100 image

 

Nikon Coolpix L120 Samsung WB100
Megapixels
14.10 16.20
Max. resolution
4320 x 3240 4608 x 3456
Price
Amazon, B&H Photo, Adorama Amazon, B&H Photo, Adorama

Sensor

Sensor type
CCD CCD
Sensor size
1/2.3" (~ 6.16 x 4.62 mm) 1/2.3" (~ 6.16 x 4.62 mm)
Sensor resolution
4330 x 3256  4642 x 3490 
Diagonal
7.70 mm  7.70 mm 
Surface area
28.46 mm²  28.46 mm² 
Sensor size comparison
Sensor size is generally a good indicator of the quality of the camera. Sensors can vary greatly in size. As a general rule, the bigger the sensor, the better the image quality.

Bigger sensors are more effective, because they have more surface area to capture light. An important factor when comparing digital cameras is also camera generation. Generally, newer sensors will outperform the older.

Learn more about sensor sizes »
Actual sensor sizes:
Nikon Coolpix L120
vs.
Samsung WB100
 
Surface area:
Nikon Coolpix L120
Samsung WB100
Difference: 0 mm² (0%)
Nikon Coolpix L120 and Samsung WB100 have the same surface area.
Pixel pitch
1.42 µm  1.33 µm 
Pixel pitch tells you the distance from the center of one pixel (photosite) to the center of the next. It tells you how close the pixels are to each other.

The bigger the pixel pitch, the further apart they are and the bigger each pixel is. Bigger pixels tend to have better signal to noise ratio and greater dynamic range.
Pixel pitch
Nikon Coolpix L120
Samsung WB100
Difference: 0.09 µm (7%)
Pixel pitch of Nikon Coolpix L120 is approx. 7% higher than pixel pitch of Samsung WB100.
Pixel area
2.02 µm²  1.77 µm² 
Pixel or photosite area affects how much light per pixel can be gathered. The larger it is the more light can be collected by a single pixel.

Larger pixels have the potential to collect more photons, resulting in greater dynamic range, while smaller pixels provide higher resolutions (more detail) for a given sensor size.
Relative pixel sizes:
Nikon Coolpix L120
vs.
Samsung WB100
Pixel area difference: 0.25 µm² (14%)
A pixel on Nikon Coolpix L120 sensor is approx. 14% bigger than a pixel on Samsung WB100.
Pixel density
49.41 MP/cm²  56.79 MP/cm² 
Pixel density tells you how many million pixels fit or would fit in one square cm of the sensor.

Higher pixel density means smaller pixels and lower pixel density means larger pixels.
Pixel density
Nikon Coolpix L120
Samsung WB100
Difference: 7.38 MP/cm² (15%)
Samsung WB100 has approx. 15% higher pixel density than Nikon Coolpix L120.
To learn about the accuracy of these numbers, click here.

Other specifications

Crop factor
5.62  5.62 
Total megapixels
14.50 16.40
Effective megapixels
14.10 16.20
Optical zoom
21x 26x
Digital zoom
Yes Yes
Iso
Auto, 80 - 6400 Auto, 80, 100, 200, 400, 800, 1600, 3200
Auto focus
Yes Yes
Manual focus
No No
Normal focus range
30 cm 80 cm
Macro focus range
1 cm 10 cm
Focal length (35mm equiv.)
25 - 525 mm 22.3 - 580 mm
Aperture priority
No No
Aperture
f3.1 - f5.8 f3.1 - f5.9
Aperture (35mm equiv.)
f17.4 - f32.6  f17.4 - f33.2 
Metering
Multi, Center-weighted Centre weighted, Multi-pattern, Spot
Exposure compensation
-2EV - +2EV with 1/3EV steps -2EV - +2EV with 1/3EV steps
Shutter priority
No No
Min. shutter speed
4 sec 8 sec
Max. shutter speed
1/4000 sec 1/2000 sec
Flash modes
Anti red-eye, Auto, Fill in, Off, Slow flash Fill-in mode, slow synchro, auto mode, flash OFF mode, red-eye reduction
Built-in flash
Yes Yes
External flash
No No
Viewfinder
None None
White balance presets
5 5
LCD display
Yes Yes
LCD size
3" 3"
LCD resolution
921,000 230,000
Min. image resolution
640 x 480 1024 x 768
Selftimer
Yes Yes
Storage types
SDHC, SDXC, Secure Digital SD/SDHC/SDXC
USB
USB 2.0 (480 Mbit/sec) USB 2.0 Hi-Speed
Batteries
4 x AA batteries 4×AA Type
Weight
431g 408 g
Dimensions
109.9x76.5x78.4 mm 114.48 x 79.26 x 86.45 mm
Year
2011 2012



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Diagonal

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

Nikon Coolpix L120 diagonal

The diagonal of Nikon Coolpix L120 image sensor is not 1/2.3 inch as you might expect, but approximately two thirds of that value. If you want to know why, see sensor sizes.

w = 6.16 mm
h = 4.62 mm
Diagonal =  6.16² + 4.62²   = 7.70 mm

Samsung WB100 diagonal

The diagonal of Samsung WB100 image sensor is not 1/2.3 inch as you might expect, but approximately two thirds of that value. If you want to know why, see sensor sizes.

w = 6.16 mm
h = 4.62 mm
Diagonal =  6.16² + 4.62²   = 7.70 mm


Surface area

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

Nikon Coolpix L120 surface area

Width = 6.16 mm
Height = 4.62 mm

Surface area = 6.16 × 4.62 = 28.46 mm²

Samsung WB100 surface area

Width = 6.16 mm
Height = 4.62 mm

Surface area = 6.16 × 4.62 = 28.46 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 Coolpix L120 pixel pitch

Sensor width = 6.16 mm
Sensor resolution width = 4330 pixels
Pixel pitch =   6.16  × 1000  = 1.42 µm
4330

Samsung WB100 pixel pitch

Sensor width = 6.16 mm
Sensor resolution width = 4642 pixels
Pixel pitch =   6.16  × 1000  = 1.33 µm
4642


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 Coolpix L120 pixel area

Pixel pitch = 1.42 µm

Pixel area = 1.42² = 2.02 µm²

Samsung WB100 pixel area

Pixel pitch = 1.33 µm

Pixel area = 1.33² = 1.77 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 Coolpix L120 pixel density

Sensor resolution width = 4330 pixels
Sensor width = 0.616 cm

Pixel density = (4330 / 0.616)² / 1000000 = 49.41 MP/cm²

Samsung WB100 pixel density

Sensor resolution width = 4642 pixels
Sensor width = 0.616 cm

Pixel density = (4642 / 0.616)² / 1000000 = 56.79 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. 22.8 × 15.5 sensor for example has a ratio of 1.47.

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
r
3. To get sensor resolution we then multiply X with the corresponding ratio:

Resolution horizontal: X × r
Resolution vertical: X

Nikon Coolpix L120 sensor resolution

Sensor width = 6.16 mm
Sensor height = 4.62 mm
Effective megapixels = 14.10
r = 6.16/4.62 = 1.33
X =  14.10 × 1000000  = 3256
1.33
Resolution horizontal: X × r = 3256 × 1.33 = 4330
Resolution vertical: X = 3256

Sensor resolution = 4330 x 3256

Samsung WB100 sensor resolution

Sensor width = 6.16 mm
Sensor height = 4.62 mm
Effective megapixels = 16.20
r = 6.16/4.62 = 1.33
X =  16.20 × 1000000  = 3490
1.33
Resolution horizontal: X × r = 3490 × 1.33 = 4642
Resolution vertical: X = 3490

Sensor resolution = 4642 x 3490


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 Coolpix L120 crop factor

Sensor diagonal in mm = 7.70 mm
Crop factor =   43.27  = 5.62
7.70

Samsung WB100 crop factor

Sensor diagonal in mm = 7.70 mm
Crop factor =   43.27  = 5.62
7.70

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 L120 equivalent aperture

Crop factor = 5.62
Aperture = f3.1 - f5.8

35-mm equivalent aperture = (f3.1 - f5.8) × 5.62 = f17.4 - f32.6

Samsung WB100 equivalent aperture

Crop factor = 5.62
Aperture = f3.1 - f5.9

35-mm equivalent aperture = (f3.1 - f5.9) × 5.62 = f17.4 - f33.2


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