Kodak EasyShare C703 vs. Olympus C-2100 UZ

Comparison

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Kodak EasyShare C703

Olympus C-2100 UZ

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Megapixels

7.40

1.90

Max. image resolution

3072 x 2304

1600 x 1200

Sensor

Sensor type

CCD

Sensor size

1/2.5" (~ 5.75 x 4.32 mm)

1/2" (~ 6.4 x 4.8 mm)

Sensor resolution

3137 x 2359

1589 x 1195

Diagonal

7.19 mm

8.00 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	:	1.24
(ratio)

Kodak EasyShare C703		Olympus C-2100 UZ

Surface area:

24.84 mm²

30.72 mm²

Difference: 5.88 mm² (24%)

C-2100 UZ sensor is approx. 1.24x bigger than C703 sensor.

Note: You are comparing sensors of very different generations. There is a gap of 7 years between Kodak C703 (2007) and Olympus C-2100 UZ (2000). Seven years is a lot of time in terms of technology, meaning newer sensors are overall much more efficient than the older ones.

Pixel pitch

1.83 µm

4.03 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: 2.2 µm (120%)

Pixel pitch of C-2100 UZ is approx. 120% higher than pixel pitch of C703.

Pixel area

3.35 µm²

16.24 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: 12.89 µm² (385%)

A pixel on Olympus C-2100 UZ sensor is approx. 385% bigger than a pixel on Kodak C703.

Pixel density

29.76 MP/cm²

6.16 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: 23.6 µm (383%)

Kodak C703 has approx. 383% higher pixel density than Olympus C-2100 UZ.

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

Specs

Kodak C703

Olympus C-2100 UZ

Crop factor

6.02

5.41

Total megapixels

2.10

Effective megapixels

1.90

Optical zoom

Yes

10x

Digital zoom

Yes

ISO sensitivity

Auto, 80, 100, 160, 200, 400, 800

Auto, 100, 200, 400

RAW

Manual focus

Normal focus range

60 cm

Macro focus range

13 cm

10 cm

Focal length (35mm equiv.)

37 - 111 mm

38 - 380 mm

Aperture priority

Yes

Max. aperture

f2.7 - f4.9

f2.8 - f3.5

Max. aperture (35mm equiv.)

f16.3 - f29.5

f15.1 - f18.9

Metering

Centre weighted

Centre weighted, Spot

Exposure compensation

±2 EV (in 1/2 EV steps)

±2 EV (in 1/3 EV steps)

Shutter priority

Yes

Min. shutter speed

4 sec

16 sec

Max. shutter speed

1/1400 sec

1/800 sec

Built-in flash

External flash

Viewfinder

Optical

Electronic

White balance presets

Screen size

2.4"

1.8"

Screen resolution

114,000 dots

Video capture

Max. video resolution

Storage types

MultiMedia, Secure Digital

SmartMedia

USB

USB 2.0 (480 Mbit/sec)

USB 1.0

HDMI

Wireless

GPS

Battery

2x AA

AA (4) batteries (NiMH recommended)

Weight

145 g

635 g

Dimensions

92.2 x 65.7 x 32.4 mm

113 x 78 x 141 mm

Year

2007

2000

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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

Kodak C703 diagonal

The diagonal of C703 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

Olympus C-2100 UZ diagonal

The diagonal of C-2100 UZ sensor is not 1/2 or 0.5" (12.7 mm) as you might expect, but approximately two thirds of that value - 8 mm. If you want to know why, see sensor sizes.

w = 6.40 mm
h = 4.80 mm

Diagonal = √

6.40² + 4.80²

= 8.00 mm

Surface area

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

C703 sensor area

Width = 5.75 mm
Height = 4.32 mm

Surface area = 5.75 × 4.32 = 24.84 mm²

C-2100 UZ sensor area

Width = 6.40 mm
Height = 4.80 mm

Surface area = 6.40 × 4.80 = 30.72 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

C703 pixel pitch

Sensor width = 5.75 mm
Sensor resolution width = 3137 pixels

Pixel pitch =	5.75	× 1000	= 1.83 µm
	3137

C-2100 UZ pixel pitch

Sensor width = 6.40 mm
Sensor resolution width = 1589 pixels

Pixel pitch =	6.40	× 1000	= 4.03 µm
	1589

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

C703 pixel area

Pixel pitch = 1.83 µm

Pixel area = 1.83² = 3.35 µm²

C-2100 UZ pixel area

Pixel pitch = 4.03 µm

Pixel area = 4.03² = 16.24 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

C703 pixel density

Sensor resolution width = 3137 pixels
Sensor width = 0.575 cm

Pixel density = (3137 / 0.575)² / 1000000 = 29.76 MP/cm²

C-2100 UZ pixel density

Sensor resolution width = 1589 pixels
Sensor width = 0.64 cm

Pixel density = (1589 / 0.64)² / 1000000 = 6.16 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

C703 sensor resolution

Sensor width = 5.75 mm
Sensor height = 4.32 mm
Effective megapixels = 7.40

r = 5.75/4.32 = 1.33

X = √	7.40 × 1000000	= 2359
	1.33

Resolution horizontal: X × r = 2359 × 1.33 = 3137
Resolution vertical: X = 2359

Sensor resolution = 3137 x 2359

C-2100 UZ sensor resolution

Sensor width = 6.40 mm
Sensor height = 4.80 mm
Effective megapixels = 1.90

r = 6.40/4.80 = 1.33

X = √	1.90 × 1000000	= 1195
	1.33

Resolution horizontal: X × r = 1195 × 1.33 = 1589
Resolution vertical: X = 1195

Sensor resolution = 1589 x 1195

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

C703 crop factor

Sensor diagonal in mm = 7.19 mm

Crop factor =	43.27	= 6.02
	7.19

C-2100 UZ crop factor

Sensor diagonal in mm = 8.00 mm

Crop factor =	43.27	= 5.41
	8.00

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).

C703 equivalent aperture

Crop factor = 6.02
Aperture = f2.7 - f4.9

35-mm equivalent aperture = (f2.7 - f4.9) × 6.02 = f16.3 - f29.5

C-2100 UZ equivalent aperture

Crop factor = 5.41
Aperture = f2.8 - f3.5

35-mm equivalent aperture = (f2.8 - f3.5) × 5.41 = f15.1 - f18.9

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