Canon PowerShot SD200 vs. Canon PowerShot Pro70

Comparison

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Canon PowerShot SD200

Canon PowerShot Pro70

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Megapixels

3.20

1.50

Max. image resolution

2048 x 1536

1536 x 1024

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

2063 x 1551

1412 x 1062

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)

Canon PowerShot SD200		Canon PowerShot Pro70

Surface area:

24.84 mm²

30.72 mm²

Difference: 5.88 mm² (24%)

Pro70 sensor is approx. 1.24x bigger than SD200 sensor.

Note: You are comparing sensors of very different generations. There is a gap of 6 years between Canon SD200 (2004) and Canon Pro70 (1998). Six years is a lot of time in terms of technology, meaning newer sensors are overall much more efficient than the older ones.

Pixel pitch

2.79 µm

4.53 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: 1.74 µm (62%)

Pixel pitch of Pro70 is approx. 62% higher than pixel pitch of SD200.

Pixel area

7.78 µm²

20.52 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: 12.74 µm² (164%)

A pixel on Canon Pro70 sensor is approx. 164% bigger than a pixel on Canon SD200.

Pixel density

12.87 MP/cm²

4.87 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: 8 µm (164%)

Canon SD200 has approx. 164% higher pixel density than Canon Pro70.

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

Specs

Canon SD200

Canon Pro70

Crop factor

6.02

5.41

Total megapixels

3.30

1.70

Effective megapixels

3.20

1.50

Optical zoom

2.5x

Digital zoom

Yes

ISO sensitivity

Auto, 50, 100, 200, 400

100, 200, 400

RAW

Manual focus

Normal focus range

50 cm

32 cm

Macro focus range

3 cm

12 cm

Focal length (35mm equiv.)

35 - 105 mm

28 - 70 mm

Aperture priority

Yes

Max. aperture

f2.8 - f4.9

f2.0 - f2.4

Max. aperture (35mm equiv.)

f16.9 - f29.5

f10.8 - f13

Metering

Multi, Center-weighted, Spot

Exposure compensation

±2 EV (in 1/3 EV steps)

Shutter priority

Min. shutter speed

15 sec

1/2 sec

Max. shutter speed

1/1500 sec

1/8000 sec

Built-in flash

External flash

Viewfinder

Optical (tunnel)

White balance presets

Screen size

Screen resolution

118,000 dots

120,000 dots

Video capture

Max. video resolution

Storage types

SD card

Compact Flash (2 slots: 1 @ Type I, 1 @ Type I or II)

USB

USB 1.0

HDMI

Wireless

GPS

Battery

Lithium-Ion NB-4L battery

Canon 1400mAh NiMH

Weight

135 g

800 g

Dimensions

86 x 54 x 21 mm

148 x 84 x 130 mm

Year

2004

1998

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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

Canon SD200 diagonal

The diagonal of SD200 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

Canon Pro70 diagonal

The diagonal of Pro70 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.

SD200 sensor area

Width = 5.75 mm
Height = 4.32 mm

Surface area = 5.75 × 4.32 = 24.84 mm²

Pro70 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

SD200 pixel pitch

Sensor width = 5.75 mm
Sensor resolution width = 2063 pixels

Pixel pitch =	5.75	× 1000	= 2.79 µm
	2063

Pro70 pixel pitch

Sensor width = 6.40 mm
Sensor resolution width = 1412 pixels

Pixel pitch =	6.40	× 1000	= 4.53 µm
	1412

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

SD200 pixel area

Pixel pitch = 2.79 µm

Pixel area = 2.79² = 7.78 µm²

Pro70 pixel area

Pixel pitch = 4.53 µm

Pixel area = 4.53² = 20.52 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

SD200 pixel density

Sensor resolution width = 2063 pixels
Sensor width = 0.575 cm

Pixel density = (2063 / 0.575)² / 1000000 = 12.87 MP/cm²

Pro70 pixel density

Sensor resolution width = 1412 pixels
Sensor width = 0.64 cm

Pixel density = (1412 / 0.64)² / 1000000 = 4.87 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

SD200 sensor resolution

Sensor width = 5.75 mm
Sensor height = 4.32 mm
Effective megapixels = 3.20

r = 5.75/4.32 = 1.33

X = √	3.20 × 1000000	= 1551
	1.33

Resolution horizontal: X × r = 1551 × 1.33 = 2063
Resolution vertical: X = 1551

Sensor resolution = 2063 x 1551

Pro70 sensor resolution

Sensor width = 6.40 mm
Sensor height = 4.80 mm
Effective megapixels = 1.50

r = 6.40/4.80 = 1.33

X = √	1.50 × 1000000	= 1062
	1.33

Resolution horizontal: X × r = 1062 × 1.33 = 1412
Resolution vertical: X = 1062

Sensor resolution = 1412 x 1062

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

SD200 crop factor

Sensor diagonal in mm = 7.19 mm

Crop factor =	43.27	= 6.02
	7.19

Pro70 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).

SD200 equivalent aperture

Crop factor = 6.02
Aperture = f2.8 - f4.9

35-mm equivalent aperture = (f2.8 - f4.9) × 6.02 = f16.9 - f29.5

Pro70 equivalent aperture

Crop factor = 5.41
Aperture = f2.0 - f2.4

35-mm equivalent aperture = (f2.0 - f2.4) × 5.41 = f10.8 - f13

More comparisons of Canon SD200:

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