Sony Cyber-shot DSC-W100 vs. Sony Cyber-shot DSC-W150

Comparison

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Cyber-shot DSC-W100 image
vs
Cyber-shot DSC-W150 image
Sony Cyber-shot DSC-W100 Sony Cyber-shot DSC-W150
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Megapixels
8.10
8.10
Max. image resolution
3264 x 2448
3264 x 2448

Sensor

Sensor type
CCD
CCD
Sensor size
1/1.8" (~ 7.11 x 5.33 mm)
1/2.5" (~ 5.75 x 4.32 mm)
Sensor resolution
3282 x 2468
3282 x 2468
Diagonal
8.89 mm
7.19 mm
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 size

Note: Actual size is set to screen → change »
vs
1.53 : 1
(ratio)
Sony Cyber-shot DSC-W100 Sony Cyber-shot DSC-W150
Surface area:
37.90 mm² vs 24.84 mm²
Difference: 13.06 mm² (53%)
W100 sensor is approx. 1.53x bigger than W150 sensor.
Note: You are comparing cameras of different generations. There is a 2 year gap between Sony W100 (2006) and Sony W150 (2008). All things being equal, newer sensor generations generally outperform the older.
Pixel pitch
2.17 µm
1.75 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.
Difference: 0.42 µm (24%)
Pixel pitch of W100 is approx. 24% higher than pixel pitch of W150.
Pixel area
4.71 µm²
3.06 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:
vs
Pixel area difference: 1.65 µm² (54%)
A pixel on Sony W100 sensor is approx. 54% bigger than a pixel on Sony W150.
Pixel density
21.31 MP/cm²
32.58 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.
Difference: 11.27 µm (53%)
Sony W150 has approx. 53% higher pixel density than Sony W100.
To learn about the accuracy of these numbers, click here.



Specs

Sony W100
Sony W150
Crop factor
4.87
6.02
Total megapixels
Effective megapixels
Optical zoom
3x
5x
Digital zoom
Yes
Yes
ISO sensitivity
Auto, 80, 100, 400, 800, 1250
Auto
RAW
Manual focus
Normal focus range
50 cm
10 cm
Macro focus range
6 cm
10 cm
Focal length (35mm equiv.)
38 - 114 mm
30 - 150 mm
Aperture priority
Yes
No
Max. aperture
f2.8 - f5.2
f3.3 - f5.2
Max. aperture (35mm equiv.)
f13.6 - f25.3
f19.9 - f31.3
Metering
Centre weighted, Multi-pattern, Spot
Multi, Center-weighted, Spot
Exposure compensation
±2 EV (in 1/3 EV steps)
±2 EV (in 1/3 EV steps)
Shutter priority
Yes
No
Min. shutter speed
30 sec
1 sec
Max. shutter speed
1/1000 sec
1/1600 sec
Built-in flash
External flash
Viewfinder
Optical (tunnel)
Optical (tunnel)
White balance presets
7
9
Screen size
2.5"
2.5"
Screen resolution
115,000 dots
230,000 dots
Video capture
Max. video resolution
Storage types
Memory Stick Duo, Memory Stick Pro Duo
Memory Stick Duo, Memory Stick Pro Duo
USB
USB 2.0 (480 Mbit/sec)
USB 2.0 (480 Mbit/sec)
HDMI
Wireless
GPS
Battery
Lithium-Ion NP-BG1 rechargeable
Lithium-Ion (NP-BG1)
Weight
192 g
173 g
Dimensions
94.2 x 60.6 x 24.8 mm
94 x 58 x 24 mm
Year
2006
2008




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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

Sony W100 diagonal

The diagonal of W100 sensor is not 1/1.8 or 0.56" (14.1 mm) as you might expect, but approximately two thirds of that value - 8.89 mm. If you want to know why, see sensor sizes.

w = 7.11 mm
h = 5.33 mm
Diagonal = √  7.11² + 5.33²   = 8.89 mm

Sony W150 diagonal

The diagonal of W150 sensor is not 1/2.5 or 0.4" (10.2 mm) as you might expect, but approximately two thirds of that value - 7.19 mm. If you want to know why, see sensor sizes.

w = 5.75 mm
h = 4.32 mm
Diagonal = √  5.75² + 4.32²   = 7.19 mm


Surface area

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

W100 sensor area

Width = 7.11 mm
Height = 5.33 mm

Surface area = 7.11 × 5.33 = 37.90 mm²

W150 sensor area

Width = 5.75 mm
Height = 4.32 mm

Surface area = 5.75 × 4.32 = 24.84 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

W100 pixel pitch

Sensor width = 7.11 mm
Sensor resolution width = 3282 pixels
Pixel pitch =   7.11  × 1000  = 2.17 µm
3282

W150 pixel pitch

Sensor width = 5.75 mm
Sensor resolution width = 3282 pixels
Pixel pitch =   5.75  × 1000  = 1.75 µm
3282


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

W100 pixel area

Pixel pitch = 2.17 µm

Pixel area = 2.17² = 4.71 µm²

W150 pixel area

Pixel pitch = 1.75 µm

Pixel area = 1.75² = 3.06 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

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

W100 pixel density

Sensor resolution width = 3282 pixels
Sensor width = 0.711 cm

Pixel density = (3282 / 0.711)² / 1000000 = 21.31 MP/cm²

W150 pixel density

Sensor resolution width = 3282 pixels
Sensor width = 0.575 cm

Pixel density = (3282 / 0.575)² / 1000000 = 32.58 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
r
3. To get sensor resolution we then multiply X with the corresponding ratio:

Resolution horizontal: X × r
Resolution vertical: X

W100 sensor resolution

Sensor width = 7.11 mm
Sensor height = 5.33 mm
Effective megapixels = 8.10
r = 7.11/5.33 = 1.33
X = √  8.10 × 1000000  = 2468
1.33
Resolution horizontal: X × r = 2468 × 1.33 = 3282
Resolution vertical: X = 2468

Sensor resolution = 3282 x 2468

W150 sensor resolution

Sensor width = 5.75 mm
Sensor height = 4.32 mm
Effective megapixels = 8.10
r = 5.75/4.32 = 1.33
X = √  8.10 × 1000000  = 2468
1.33
Resolution horizontal: X × r = 2468 × 1.33 = 3282
Resolution vertical: X = 2468

Sensor resolution = 3282 x 2468


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


W100 crop factor

Sensor diagonal in mm = 8.89 mm
Crop factor =   43.27  = 4.87
8.89

W150 crop factor

Sensor diagonal in mm = 7.19 mm
Crop factor =   43.27  = 6.02
7.19

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).

W100 equivalent aperture

Crop factor = 4.87
Aperture = f2.8 - f5.2

35-mm equivalent aperture = (f2.8 - f5.2) × 4.87 = f13.6 - f25.3

W150 equivalent aperture

Crop factor = 6.02
Aperture = f3.3 - f5.2

35-mm equivalent aperture = (f3.3 - f5.2) × 6.02 = f19.9 - f31.3

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