Kodak DC240 vs. Canon PowerShot G2

Comparison

change cameras »

Kodak DC240

Canon PowerShot G2

check price »

Megapixels

1.20

3.90

Max. image resolution

1280 x 960

2272 x 1704

Sensor

Sensor type

CCD

Sensor size

1/1.76" (~ 7.27 x 5.46 mm)

1/1.8" (~ 7.11 x 5.33 mm)

Sensor resolution

1264 x 950

2277 x 1712

Diagonal

9.09 mm

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
1.05	:	1
(ratio)

Kodak DC240		Canon PowerShot G2

Surface area:

39.69 mm²

37.90 mm²

Difference: 1.79 mm² (5%)

DC240 sensor is slightly bigger than G2 sensor (only 5% difference).

Note: You are comparing cameras of different generations. There is a 2 year gap between Kodak DC240 (1999) and Canon G2 (2001). All things being equal, newer sensor generations generally outperform the older.

Pixel pitch

5.75 µm

3.12 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: 2.63 µm (84%)

Pixel pitch of DC240 is approx. 84% higher than pixel pitch of G2.

Pixel area

33.06 µm²

9.73 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: 23.33 µm² (240%)

A pixel on Kodak DC240 sensor is approx. 240% bigger than a pixel on Canon G2.

Pixel density

3.02 MP/cm²

10.26 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: 7.24 µm (240%)

Canon G2 has approx. 240% higher pixel density than Kodak DC240.

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

Specs

Kodak DC240

Canon G2

Crop factor

4.76

4.87

Total megapixels

1.30

4.10

Effective megapixels

1.20

3.90

Optical zoom

Digital zoom

Yes

ISO sensitivity

140

Auto, 50, 100, 200, 400

RAW

Manual focus

Normal focus range

50 cm

70 cm

Macro focus range

25 cm

6 cm

Focal length (35mm equiv.)

39 - 117 mm

34 - 102 mm

Aperture priority

Yes

Max. aperture

f2.8 - f16.0

f2.0 - f2.5

Max. aperture (35mm equiv.)

f13.3 - f76.2

f9.7 - f12.2

Metering

Multi, Center-weighted, Spot

Centre weighted, Spot, Spot-AF

Exposure compensation

±2 EV (in 1/2 EV steps)

±2 EV (in 1/3 EV steps)

Shutter priority

Yes

Min. shutter speed

1/2 sec

15 sec

Max. shutter speed

1/755 sec

1/1000 sec

Built-in flash

External flash

Viewfinder

Optical (tunnel)

White balance presets

Screen size

1.8"

Screen resolution

72,000 dots

113,578 dots

Video capture

Max. video resolution

Storage types

Compact Flash

CompactFlash type I, CompactFlash type II, Microdrive

USB

USB 1.0

HDMI

Wireless

GPS

Battery

AA NiMH (4) batteries included

Canon Lithium-Ion

Weight

420 g

510 g

Dimensions

133 x 51 x 76 mm

120.9 x 76.6 x 63.8 mm

Year

1999

2001

Choose cameras to compare

Popular comparisons:

Diagonal

Diagonal is calculated by the use of Pythagorean theorem:

Diagonal = √

w² + h²

where w = sensor width and h = sensor height

Kodak DC240 diagonal

The diagonal of DC240 sensor is not 1/1.76 or 0.57" (14.4 mm) as you might expect, but approximately two thirds of that value - 9.09 mm. If you want to know why, see sensor sizes.

w = 7.27 mm
h = 5.46 mm

Diagonal = √

7.27² + 5.46²

= 9.09 mm

Canon G2 diagonal

The diagonal of G2 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.

DC240 sensor area

Width = 7.27 mm
Height = 5.46 mm

Surface area = 7.27 × 5.46 = 39.69 mm²

G2 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

DC240 pixel pitch

Sensor width = 7.27 mm
Sensor resolution width = 1264 pixels

Pixel pitch =	7.27	× 1000	= 5.75 µm
	1264

G2 pixel pitch

Sensor width = 7.11 mm
Sensor resolution width = 2277 pixels

Pixel pitch =	7.11	× 1000	= 3.12 µm
	2277

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

DC240 pixel area

Pixel pitch = 5.75 µm

Pixel area = 5.75² = 33.06 µm²

G2 pixel area

Pixel pitch = 3.12 µm

Pixel area = 3.12² = 9.73 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

DC240 pixel density

Sensor resolution width = 1264 pixels
Sensor width = 0.727 cm

Pixel density = (1264 / 0.727)² / 1000000 = 3.02 MP/cm²

G2 pixel density

Sensor resolution width = 2277 pixels
Sensor width = 0.711 cm

Pixel density = (2277 / 0.711)² / 1000000 = 10.26 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

DC240 sensor resolution

Sensor width = 7.27 mm
Sensor height = 5.46 mm
Effective megapixels = 1.20

r = 7.27/5.46 = 1.33

X = √	1.20 × 1000000	= 950
	1.33

Resolution horizontal: X × r = 950 × 1.33 = 1264
Resolution vertical: X = 950

Sensor resolution = 1264 x 950

G2 sensor resolution

Sensor width = 7.11 mm
Sensor height = 5.33 mm
Effective megapixels = 3.90

r = 7.11/5.33 = 1.33

X = √	3.90 × 1000000	= 1712
	1.33

Resolution horizontal: X × r = 1712 × 1.33 = 2277
Resolution vertical: X = 1712

Sensor resolution = 2277 x 1712

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

DC240 crop factor

Sensor diagonal in mm = 9.09 mm

Crop factor =	43.27	= 4.76
	9.09

G2 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).

DC240 equivalent aperture

Crop factor = 4.76
Aperture = f2.8 - f16.0

35-mm equivalent aperture = (f2.8 - f16.0) × 4.76 = f13.3 - f76.2

G2 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

Enter your screen size (diagonal)

My screen size is inches

Actual size is currently adjusted to screen.

If your screen (phone, tablet, or monitor) is not in diagonal, then the actual size of a sensor won't be shown correctly.