Sony Cybershot DSC W730 vs. Sony Cybershot DSC W710

Comparison

Cybershot DSC W730 image
vs.
Cybershot DSC W710 image

Comparison

Sony Cybershot DSC W730 Sony Cybershot DSC W710
Megapixels
16.10 16.10
Max. resolution
4608 x 3456 4608 x 3456
Price
Amazon, B&H Photo, Adorama Amazon, B&H Photo, Adorama

Sensor

Sensor type
Super HAD CCD Super HAD CCD
Sensor size
1/2.3" (~ 6.16 x 4.62 mm) 1/2.3" (~ 6.16 x 4.62 mm)
Sensor resolution
4627 x 3479  4627 x 3479 
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:
Sony Cybershot DSC W730
vs.
Sony Cybershot DSC W710
 
Surface area:
Sony Cybershot DSC W730
Sony Cybershot DSC W710
Difference: 0 mm² (0%)
Sony Cybershot DSC W730 and Sony Cybershot DSC W710 have the same surface area.
Pixel pitch
1.33 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
Sony Cybershot DSC W730
Sony Cybershot DSC W710
Difference: 0 µm (0%)
Sony Cybershot DSC W730 and Sony Cybershot DSC W710 have the same pixel pitch.
Pixel area
1.77 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:
Sony Cybershot DSC W730
vs.
Sony Cybershot DSC W710
Pixel area difference: 0 µm² (0%)
Sony Cybershot DSC W730 and Sony Cybershot DSC W710 have the same pixel area.
Pixel density
56.42 MP/cm²  56.42 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
Sony Cybershot DSC W730
Sony Cybershot DSC W710
Difference: 0 MP/cm² (0%)
Sony Cybershot DSC W730 and Sony Cybershot DSC W710 have the same pixel density.
To learn about the accuracy of these numbers, click here.

Other specifications

Crop factor
5.62  5.62 
Total megapixels
16.40 16.40
Effective megapixels
16.10 16.10
Optical zoom
8x 5x
Digital zoom
Yes Yes
Iso
Auto, 100, 200, 400, 800, 1600, 3200 Auto, 100, 200, 400, 800, 1600, 3200
Auto focus
Yes Yes
Manual focus
n/a n/a
Normal focus range
n/a n/a
Macro focus range
n/a n/a
Focal length (35mm equiv.)
25 - 200 mm 28 - 140 mm
Aperture priority
No No
Aperture
f3.3 - f6.3 f3.2 - f6.5
Aperture (35mm equiv.)
f18.5 - f35.4  f18 - f36.5 
Metering
Multi, Center-weighted, Spot Multi, Center-weighted, Spot
Exposure compensation
+/- 2.0EV, 1/3EV step +/- 2.0EV, 1/3EV step
Shutter priority
No No
Min. shutter speed
2 sec 2 sec
Max. shutter speed
1/1600 sec 1/2000 sec
Flash modes
Auto, Flash On, Slow Synchro, Flash Off, Advanced Flash Auto, Flash On, Long Flash, Slow Synchro, Flash Off
Built-in flash
Yes Yes
External flash
n/a n/a
Viewfinder
None None
White balance presets
6 5
LCD display
Yes Yes
LCD size
2.7" 2.7"
LCD resolution
230,400 230,400
Min. image resolution
640 x 480 640 x 480
Selftimer
Yes Yes
Storage types
SD, SDHC, Memory Stick Duo/Pro Duo/Pro-HG Duo SD, SDHC, Memory Stick Duo/Pro Duo/Pro-HG Duo
USB
USB 2.0 High Speed USB 2.0 High Speed
Batteries
Rechargeable Battery NP-BN Rechargeable Battery NP-BN
Weight
122 g 114 g
Dimensions
93.1 x 52.3 x 22.5 mm 97 x 55.1 x 20 mm
Year
2012 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

Sony Cybershot DSC W730 diagonal

The diagonal of Sony Cybershot DSC W730 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

Sony Cybershot DSC W710 diagonal

The diagonal of Sony Cybershot DSC W710 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.

Sony Cybershot DSC W730 surface area

Width = 6.16 mm
Height = 4.62 mm

Surface area = 6.16 × 4.62 = 28.46 mm²

Sony Cybershot DSC W710 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

Sony Cybershot DSC W730 pixel pitch

Sensor width = 6.16 mm
Sensor resolution width = 4627 pixels
Pixel pitch =   6.16  × 1000  = 1.33 µm
4627

Sony Cybershot DSC W710 pixel pitch

Sensor width = 6.16 mm
Sensor resolution width = 4627 pixels
Pixel pitch =   6.16  × 1000  = 1.33 µm
4627


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

Sony Cybershot DSC W730 pixel area

Pixel pitch = 1.33 µm

Pixel area = 1.33² = 1.77 µm²

Sony Cybershot DSC W710 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

Sony Cybershot DSC W730 pixel density

Sensor resolution width = 4627 pixels
Sensor width = 0.616 cm

Pixel density = (4627 / 0.616)² / 1000000 = 56.42 MP/cm²

Sony Cybershot DSC W710 pixel density

Sensor resolution width = 4627 pixels
Sensor width = 0.616 cm

Pixel density = (4627 / 0.616)² / 1000000 = 56.42 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

Sony Cybershot DSC W730 sensor resolution

Sensor width = 6.16 mm
Sensor height = 4.62 mm
Effective megapixels = 16.10
r = 6.16/4.62 = 1.33
X =  16.10 × 1000000  = 3479
1.33
Resolution horizontal: X × r = 3479 × 1.33 = 4627
Resolution vertical: X = 3479

Sensor resolution = 4627 x 3479

Sony Cybershot DSC W710 sensor resolution

Sensor width = 6.16 mm
Sensor height = 4.62 mm
Effective megapixels = 16.10
r = 6.16/4.62 = 1.33
X =  16.10 × 1000000  = 3479
1.33
Resolution horizontal: X × r = 3479 × 1.33 = 4627
Resolution vertical: X = 3479

Sensor resolution = 4627 x 3479


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


Sony Cybershot DSC W730 crop factor

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

Sony Cybershot DSC W710 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).

Sony Cybershot DSC W730 equivalent aperture

Crop factor = 5.62
Aperture = f3.3 - f6.3

35-mm equivalent aperture = (f3.3 - f6.3) × 5.62 = f18.5 - f35.4

Sony Cybershot DSC W710 equivalent aperture

Crop factor = 5.62
Aperture = f3.2 - f6.5

35-mm equivalent aperture = (f3.2 - f6.5) × 5.62 = f18 - f36.5


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