Canon Digital IXUS v3 vs. Canon EOS D30

Comparison

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Digital IXUS v3 image
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EOS D30 image
Canon Digital IXUS v3 Canon EOS D30
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Megapixels
3.20
3.10
Max. image resolution
2048 x 1536
2160 x 1440

Sensor

Sensor type
CCD
CMOS
Sensor size
1/2.7" (~ 5.33 x 4 mm)
22.7 x 15.1 mm
Sensor resolution
2063 x 1551
2157 x 1438
Diagonal
6.66 mm
27.26 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 : 16.08
(ratio)
Canon Digital IXUS v3 Canon EOS D30
Surface area:
21.32 mm² vs 342.77 mm²
Difference: 321.45 mm² (1508%)
D30 sensor is approx. 16.08x bigger than IXUS v3 sensor.
Note: You are comparing cameras of different generations. There is a 2 year gap between Canon IXUS v3 (2002) and Canon D30 (2000). All things being equal, newer sensor generations generally outperform the older.
Pixel pitch
2.58 µm
10.52 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: 7.94 µm (308%)
Pixel pitch of D30 is approx. 308% higher than pixel pitch of IXUS v3.
Pixel area
6.66 µm²
110.67 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:
vs
Pixel area difference: 104.01 µm² (1562%)
A pixel on Canon D30 sensor is approx. 1562% bigger than a pixel on Canon IXUS v3.
Pixel density
14.98 MP/cm²
0.9 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: 14.08 µm (1564%)
Canon IXUS v3 has approx. 1564% higher pixel density than Canon D30.
To learn about the accuracy of these numbers, click here.



Specs

Canon IXUS v3
Canon D30
Crop factor
6.5
1.59
Total megapixels
3.30
3.30
Effective megapixels
3.20
3.10
Optical zoom
2x
Digital zoom
Yes
No
ISO sensitivity
Auto, 50, 100, 200, 400
100, 200, 400, 800, 1600
RAW
Manual focus
Normal focus range
47 cm
Macro focus range
10 cm
Focal length (35mm equiv.)
35 - 70 mm
Aperture priority
No
Yes
Max. aperture
f2.8 - f4.0
Max. aperture (35mm equiv.)
f18.2 - f26
n/a
Metering
Multi, Center-weighted, Spot
Multi, Center-weighted, Spot
Exposure compensation
±2 EV (in 1/3 EV steps)
±2 EV (in 1/3 EV, 1/2 EV steps)
Shutter priority
No
Yes
Min. shutter speed
15 sec
30 sec
Max. shutter speed
1/1500 sec
1/4000 sec
Built-in flash
External flash
Viewfinder
Optical (tunnel)
Optical (pentaprism)
White balance presets
6
5
Screen size
1.5"
1.8"
Screen resolution
120,000 dots
120,000 dots
Video capture
Max. video resolution
Storage types
Compact Flash (Type I)
Compact Flash (Type I or II)
USB
USB 1.0
USB 1.0
HDMI
Wireless
GPS
Battery
Canon Lithium-Ion
Canon Lithium-Ion
Weight
250 g
855 g
Dimensions
87 x 57 x 27 mm
150 x 107 x 75 mm
Year
2002
2000




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vs

Diagonal

Diagonal is calculated by the use of Pythagorean theorem:
Diagonal =  w² + h²
where w = sensor width and h = sensor height

Canon IXUS v3 diagonal

The diagonal of IXUS v3 sensor is not 1/2.7 or 0.37" (9.4 mm) as you might expect, but approximately two thirds of that value - 6.66 mm. If you want to know why, see sensor sizes.

w = 5.33 mm
h = 4.00 mm
Diagonal =  5.33² + 4.00²   = 6.66 mm

Canon D30 diagonal

w = 22.70 mm
h = 15.10 mm
Diagonal =  22.70² + 15.10²   = 27.26 mm


Surface area

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

IXUS v3 sensor area

Width = 5.33 mm
Height = 4.00 mm

Surface area = 5.33 × 4.00 = 21.32 mm²

D30 sensor area

Width = 22.70 mm
Height = 15.10 mm

Surface area = 22.70 × 15.10 = 342.77 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

IXUS v3 pixel pitch

Sensor width = 5.33 mm
Sensor resolution width = 2063 pixels
Pixel pitch =   5.33  × 1000  = 2.58 µm
2063

D30 pixel pitch

Sensor width = 22.70 mm
Sensor resolution width = 2157 pixels
Pixel pitch =   22.70  × 1000  = 10.52 µm
2157


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

IXUS v3 pixel area

Pixel pitch = 2.58 µm

Pixel area = 2.58² = 6.66 µm²

D30 pixel area

Pixel pitch = 10.52 µm

Pixel area = 10.52² = 110.67 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

IXUS v3 pixel density

Sensor resolution width = 2063 pixels
Sensor width = 0.533 cm

Pixel density = (2063 / 0.533)² / 1000000 = 14.98 MP/cm²

D30 pixel density

Sensor resolution width = 2157 pixels
Sensor width = 2.27 cm

Pixel density = (2157 / 2.27)² / 1000000 = 0.9 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

IXUS v3 sensor resolution

Sensor width = 5.33 mm
Sensor height = 4.00 mm
Effective megapixels = 3.20
r = 5.33/4.00 = 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

D30 sensor resolution

Sensor width = 22.70 mm
Sensor height = 15.10 mm
Effective megapixels = 3.10
r = 22.70/15.10 = 1.5
X =  3.10 × 1000000  = 1438
1.5
Resolution horizontal: X × r = 1438 × 1.5 = 2157
Resolution vertical: X = 1438

Sensor resolution = 2157 x 1438


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


IXUS v3 crop factor

Sensor diagonal in mm = 6.66 mm
Crop factor =   43.27  = 6.5
6.66

D30 crop factor

Sensor diagonal in mm = 27.26 mm
Crop factor =   43.27  = 1.59
27.26

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).

IXUS v3 equivalent aperture

Crop factor = 6.5
Aperture = f2.8 - f4.0

35-mm equivalent aperture = (f2.8 - f4.0) × 6.5 = f18.2 - f26

D30 equivalent aperture

Aperture is a lens characteristic, so it's calculated only for fixed lens cameras. If you want to know the equivalent aperture for Canon D30, take the aperture of the lens you're using and multiply it with crop factor.

Crop factor for Canon D30 is 1.59

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