Kodak EasyShare C360 vs. Sigma DP1 Merrill

Comparison

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Kodak EasyShare C360

Sigma DP1 Merrill

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Megapixels

5.00

15.40

Max. image resolution

2690 x 1994

Note: Sigma DP1 Merrill uses Foveon X3 image sensor, which is a new type of sensor that has 3 layers of photoelements stacked together in 1 pixel location. Traditional CCD/CMOS sensors have 1 pixel for 1 color, whereas Foveon sensor captures all 3 colors (blue, green, and red) at every pixel.

Sensor

Sensor type

CCD

Foveon

Sensor size

1/1.8" (~ 7.11 x 5.33 mm)

24 x 16 mm

Sensor resolution

2579 x 1939

4806 x 3204

Diagonal

8.89 mm

28.84 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	:	10.13
(ratio)

Kodak EasyShare C360		Sigma DP1 Merrill

Surface area:

37.90 mm²

384.00 mm²

Difference: 346.1 mm² (913%)

DP1 Merrill sensor is approx. 10.13x bigger than C360 sensor.

Note: You are comparing sensors of very different generations. There is a gap of 7 years between Kodak C360 (2005) and Sigma DP1 Merrill (2012). 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

2.76 µm

4.99 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: 2.23 µm (81%)

Pixel pitch of DP1 Merrill is approx. 81% higher than pixel pitch of C360.

Pixel area

7.62 µm²

24.9 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: 17.28 µm² (227%)

A pixel on Sigma DP1 Merrill sensor is approx. 227% bigger than a pixel on Kodak C360.

Pixel density

13.16 MP/cm²

4.01 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: 9.15 µm (228%)

Kodak C360 has approx. 228% higher pixel density than Sigma DP1 Merrill.

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

Specs

Kodak C360

Sigma DP1 Merrill

Crop factor

4.87

1.5

Total megapixels

5.40

15.40

Effective megapixels

5.00

15.40

Optical zoom

Digital zoom

Yes

ISO sensitivity

Auto, (80 - 160)

RAW

Manual focus

Normal focus range

60 cm

Macro focus range

7 cm

Focal length (35mm equiv.)

34 - 102 mm

Aperture priority

Max. aperture

f2.7 - f5.2

f2.8

Max. aperture (35mm equiv.)

f13.1 - f25.3

f4.2

Metering

Multi, Center-weighted, Spot

Exposure compensation

±2 EV (in 1/2 EV steps)

Shutter priority

Min. shutter speed

4 sec

Max. shutter speed

1/1400 sec

Built-in flash

External flash

Viewfinder

Optical (tunnel)

None

White balance presets

Screen size

Screen resolution

110,000 dots

920,000 dots

Video capture

Max. video resolution

Storage types

SD/MMC card, Internal

USB

USB 1.0

USB 2.0 (480 Mbit/sec)

HDMI

Wireless

GPS

Battery

AA (2) batteries (NiMH recommended)

Weight

170 g

330 g

Dimensions

84 x 64 x 43 mm

122 x 67 x 64 mm

Year

2005

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

Kodak C360 diagonal

The diagonal of C360 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

Sigma DP1 Merrill diagonal

w = 24.00 mm
h = 16.00 mm

Diagonal = √

24.00² + 16.00²

= 28.84 mm

Surface area

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

C360 sensor area

Width = 7.11 mm
Height = 5.33 mm

Surface area = 7.11 × 5.33 = 37.90 mm²

DP1 Merrill sensor area

Width = 24.00 mm
Height = 16.00 mm

Surface area = 24.00 × 16.00 = 384.00 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

C360 pixel pitch

Sensor width = 7.11 mm
Sensor resolution width = 2579 pixels

Pixel pitch =	7.11	× 1000	= 2.76 µm
	2579

DP1 Merrill pixel pitch

Sensor width = 24.00 mm
Sensor resolution width = 4806 pixels

Pixel pitch =	24.00	× 1000	= 4.99 µm
	4806

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

C360 pixel area

Pixel pitch = 2.76 µm

Pixel area = 2.76² = 7.62 µm²

DP1 Merrill pixel area

Pixel pitch = 4.99 µm

Pixel area = 4.99² = 24.9 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

C360 pixel density

Sensor resolution width = 2579 pixels
Sensor width = 0.711 cm

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

DP1 Merrill pixel density

Sensor resolution width = 4806 pixels
Sensor width = 2.4 cm

Pixel density = (4806 / 2.4)² / 1000000 = 4.01 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

C360 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

DP1 Merrill sensor resolution

Sensor width = 24.00 mm
Sensor height = 16.00 mm
Effective megapixels = 15.40

r = 24.00/16.00 = 1.5

X = √	15.40 × 1000000	= 3204
	1.5

Resolution horizontal: X × r = 3204 × 1.5 = 4806
Resolution vertical: X = 3204

Sensor resolution = 4806 x 3204

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

C360 crop factor

Sensor diagonal in mm = 8.89 mm

Crop factor =	43.27	= 4.87
	8.89

DP1 Merrill crop factor

Sensor diagonal in mm = 28.84 mm

Crop factor =	43.27	= 1.5
	28.84

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).

C360 equivalent aperture

Crop factor = 4.87
Aperture = f2.7 - f5.2

35-mm equivalent aperture = (f2.7 - f5.2) × 4.87 = f13.1 - f25.3

DP1 Merrill equivalent aperture

Crop factor = 1.5
Aperture = f2.8

35-mm equivalent aperture = (f2.8) × 1.5 = f4.2

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