Sony Mavica CD500 vs. Sony Cyber-shot DSC-S75

Comparison

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Sony Mavica CD500

Sony Cyber-shot DSC-S75

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Megapixels

5.00

3.34

Max. image resolution

2592 x 1944

2048 x 1536

Sensor

Sensor type

CCD

Sensor size

1/1.8" (~ 7.11 x 5.33 mm)

Sensor resolution

2579 x 1939

2108 x 1585

Diagonal

8.89 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	:	1
(ratio)

Sony Mavica CD500		Sony Cyber-shot DSC-S75

Surface area:

37.90 mm²

Difference: 0 mm² (0%)

Mavica CD500 and S75 sensors are the same size.

Note: You are comparing cameras of different generations. There is a 2 year gap between Sony Mavica CD500 (2003) and Sony S75 (2001). All things being equal, newer sensor generations generally outperform the older.

Pixel pitch

2.76 µm

3.37 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: 0.61 µm (22%)

Pixel pitch of S75 is approx. 22% higher than pixel pitch of Mavica CD500.

Pixel area

7.62 µm²

11.36 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:

Pixel area difference: 3.74 µm² (49%)

A pixel on Sony S75 sensor is approx. 49% bigger than a pixel on Sony Mavica CD500.

Pixel density

13.16 MP/cm²

8.79 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.

Difference: 4.37 µm (50%)

Sony Mavica CD500 has approx. 50% higher pixel density than Sony S75.

To learn about the accuracy of these numbers, click here.

Specs

Sony Mavica CD500

Sony S75

Crop factor

4.87

Total megapixels

5.20

Effective megapixels

5.00

Optical zoom

Digital zoom

Yes

ISO sensitivity

Auto, 100, 200, 400

100, 200, 400

RAW

Manual focus

Normal focus range

50 cm

Macro focus range

4 cm

Focal length (35mm equiv.)

34 - 102 mm

Aperture priority

Yes

Max. aperture

f2.0 - f2.5

Max. aperture (35mm equiv.)

f9.7 - f12.2

Metering

Centre weighted, Multi-segment, Spot

Centre weighted, Spot

Exposure compensation

±2 EV (in 1/3 EV steps)

Shutter priority

Yes

Min. shutter speed

8 sec

Max. shutter speed

1/1000 sec

Built-in flash

External flash

Viewfinder

None

Optical (tunnel)

White balance presets

Screen size

2.5"

1.8"

Screen resolution

123,000 dots

Video capture

Max. video resolution

Storage types

8cm CDR, 8cm CDRW

Memory Stick

USB

USB 2.0 (480 Mbit/sec)

USB 1.0

HDMI

Wireless

GPS

Battery

InfoLithium (NP-FM50)

Weight

606 g

444 g

Dimensions

139 x 96 x 103 mm

125 x 52 x 65 mm

Year

2003

2001

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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 Mavica CD500 diagonal

The diagonal of Mavica CD500 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 S75 diagonal

The diagonal of S75 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

Surface area

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

Mavica CD500 sensor area

Width = 7.11 mm
Height = 5.33 mm

Surface area = 7.11 × 5.33 = 37.90 mm²

S75 sensor area

Width = 7.11 mm
Height = 5.33 mm

Surface area = 7.11 × 5.33 = 37.90 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

Mavica CD500 pixel pitch

Sensor width = 7.11 mm
Sensor resolution width = 2579 pixels

Pixel pitch =	7.11	× 1000	= 2.76 µm
	2579

S75 pixel pitch

Sensor width = 7.11 mm
Sensor resolution width = 2108 pixels

Pixel pitch =	7.11	× 1000	= 3.37 µm
	2108

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

Mavica CD500 pixel area

Pixel pitch = 2.76 µm

Pixel area = 2.76² = 7.62 µm²

S75 pixel area

Pixel pitch = 3.37 µm

Pixel area = 3.37² = 11.36 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

Mavica CD500 pixel density

Sensor resolution width = 2579 pixels
Sensor width = 0.711 cm

Pixel density = (2579 / 0.711)² / 1000000 = 13.16 MP/cm²

S75 pixel density

Sensor resolution width = 2108 pixels
Sensor width = 0.711 cm

Pixel density = (2108 / 0.711)² / 1000000 = 8.79 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.

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

Mavica CD500 sensor resolution

Sensor width = 7.11 mm
Sensor height = 5.33 mm
Effective megapixels = 5.00

r = 7.11/5.33 = 1.33

X = √	5.00 × 1000000	= 1939
	1.33

Resolution horizontal: X × r = 1939 × 1.33 = 2579
Resolution vertical: X = 1939

Sensor resolution = 2579 x 1939

S75 sensor resolution

Sensor width = 7.11 mm
Sensor height = 5.33 mm
Effective megapixels = 3.34

r = 7.11/5.33 = 1.33

X = √	3.34 × 1000000	= 1585
	1.33

Resolution horizontal: X × r = 1585 × 1.33 = 2108
Resolution vertical: X = 1585

Sensor resolution = 2108 x 1585

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

Mavica CD500 crop factor

Sensor diagonal in mm = 8.89 mm

Crop factor =	43.27	= 4.87
	8.89

S75 crop factor

Sensor diagonal in mm = 8.89 mm

Crop factor =	43.27	= 4.87
	8.89

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).

Mavica CD500 equivalent aperture

Crop factor = 4.87
Aperture = f2.0 - f2.5

35-mm equivalent aperture = (f2.0 - f2.5) × 4.87 = f9.7 - f12.2

S75 equivalent aperture

Crop factor = 4.87
Aperture = f2.0 - f2.5

35-mm equivalent aperture = (f2.0 - f2.5) × 4.87 = f9.7 - f12.2

More comparisons of Sony Mavica CD500:

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