Kodak EasyShare C613 vs. Kodak EasyShare CX7530

Comparison

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Kodak EasyShare C613

Kodak EasyShare CX7530

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Megapixels

6.20

4.90

Max. image resolution

2848 x 2134

2560 x 1920

Sensor

Sensor type

CCD

Sensor size

1/2.5" (~ 5.75 x 4.32 mm)

Sensor resolution

2871 x 2159

2552 x 1919

Diagonal

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	:	1
(ratio)

Kodak EasyShare C613		Kodak EasyShare CX7530

Surface area:

24.84 mm²

Difference: 0 mm² (0%)

C613 and CX7530 sensors are the same size.

Note: You are comparing cameras of different generations. There is a 3 year gap between Kodak C613 (2007) and Kodak CX7530 (2004). All things being equal, newer sensor generations generally outperform the older.

Pixel pitch

2 µm

2.25 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: 0.25 µm (13%)

Pixel pitch of CX7530 is approx. 13% higher than pixel pitch of C613.

Pixel area

4 µm²

5.06 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:

Pixel area difference: 1.06 µm² (27%)

A pixel on Kodak CX7530 sensor is approx. 27% bigger than a pixel on Kodak C613.

Pixel density

24.93 MP/cm²

19.7 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: 5.23 µm (27%)

Kodak C613 has approx. 27% higher pixel density than Kodak CX7530.

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

Specs

Kodak C613

Kodak CX7530

Crop factor

6.02

Total megapixels

6.20

5.20

Effective megapixels

6.20

4.90

Optical zoom

Digital zoom

Yes

ISO sensitivity

Auto, 80, 100, 200, 400, 800, 1250

Auto, 80 - 160

RAW

Manual focus

Normal focus range

60 cm

Macro focus range

13 cm

Focal length (35mm equiv.)

36 - 108 mm

34 - 102 mm

Aperture priority

Max. aperture

f2.7 - f4.8

f2.7 - f4.6

Max. aperture (35mm equiv.)

f16.3 - f28.9

f16.3 - f27.7

Metering

Centre weighted, Multi-pattern, Spot

Exposure compensation

±2 EV (in 1/2 EV steps)

Shutter priority

Min. shutter speed

1/2 sec

Max. shutter speed

1/1400 sec

Built-in flash

External flash

Viewfinder

None

Optical (tunnel)

White balance presets

Screen size

2.4"

1.8"

Screen resolution

115,000 dots

134,000 dots

Video capture

Max. video resolution

Storage types

MultiMedia, SDHC, Secure Digital

MultiMedia, Secure Digital

USB

USB 1.0

HDMI

Wireless

GPS

Battery

AA (2) batteries (NiMH recommended)

Weight

137 g

192 g

Dimensions

91 x 65.7 x 37.3 mm

102.5 x 65 x 38 mm

Year

2007

2004

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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 C613 diagonal

The diagonal of C613 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

Kodak CX7530 diagonal

The diagonal of CX7530 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.

C613 sensor area

Width = 5.75 mm
Height = 4.32 mm

Surface area = 5.75 × 4.32 = 24.84 mm²

CX7530 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

C613 pixel pitch

Sensor width = 5.75 mm
Sensor resolution width = 2871 pixels

Pixel pitch =	5.75	× 1000	= 2 µm
	2871

CX7530 pixel pitch

Sensor width = 5.75 mm
Sensor resolution width = 2552 pixels

Pixel pitch =	5.75	× 1000	= 2.25 µm
	2552

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

C613 pixel area

Pixel pitch = 2 µm

Pixel area = 2² = 4 µm²

CX7530 pixel area

Pixel pitch = 2.25 µm

Pixel area = 2.25² = 5.06 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

C613 pixel density

Sensor resolution width = 2871 pixels
Sensor width = 0.575 cm

Pixel density = (2871 / 0.575)² / 1000000 = 24.93 MP/cm²

CX7530 pixel density

Sensor resolution width = 2552 pixels
Sensor width = 0.575 cm

Pixel density = (2552 / 0.575)² / 1000000 = 19.7 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

C613 sensor resolution

Sensor width = 5.75 mm
Sensor height = 4.32 mm
Effective megapixels = 6.20

r = 5.75/4.32 = 1.33

X = √	6.20 × 1000000	= 2159
	1.33

Resolution horizontal: X × r = 2159 × 1.33 = 2871
Resolution vertical: X = 2159

Sensor resolution = 2871 x 2159

CX7530 sensor resolution

Sensor width = 5.75 mm
Sensor height = 4.32 mm
Effective megapixels = 4.90

r = 5.75/4.32 = 1.33

X = √	4.90 × 1000000	= 1919
	1.33

Resolution horizontal: X × r = 1919 × 1.33 = 2552
Resolution vertical: X = 1919

Sensor resolution = 2552 x 1919

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

C613 crop factor

Sensor diagonal in mm = 7.19 mm

Crop factor =	43.27	= 6.02
	7.19

CX7530 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).

C613 equivalent aperture

Crop factor = 6.02
Aperture = f2.7 - f4.8

35-mm equivalent aperture = (f2.7 - f4.8) × 6.02 = f16.3 - f28.9

CX7530 equivalent aperture

Crop factor = 6.02
Aperture = f2.7 - f4.6

35-mm equivalent aperture = (f2.7 - f4.6) × 6.02 = f16.3 - f27.7

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