Canon Digital IXUS v2 vs. Canon Digital IXUS 980 IS

Comparison

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Digital IXUS v2 image
vs
Digital IXUS 980 IS image
Canon Digital IXUS v2 Canon Digital IXUS 980 IS
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Megapixels
2.00
14.70
Max. image resolution
1600 x 1200
4416 x 3312

Sensor

Sensor type
CCD
CCD
Sensor size
1/2.7" (~ 5.33 x 4 mm)
1/1.7" (~ 7.53 x 5.64 mm)
Sensor resolution
1631 x 1226
4438 x 3312
Diagonal
6.66 mm
9.41 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 : 1.99
(ratio)
Canon Digital IXUS v2 Canon Digital IXUS 980 IS
Surface area:
21.32 mm² vs 42.47 mm²
Difference: 21.15 mm² (99%)
IXUS 980 IS sensor is approx. 1.99x bigger than IXUS v2 sensor.
Note: You are comparing sensors of very different generations. There is a gap of 6 years between Canon IXUS v2 (2002) and Canon IXUS 980 IS (2008). 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
3.27 µm
1.7 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: 1.57 µm (92%)
Pixel pitch of IXUS v2 is approx. 92% higher than pixel pitch of IXUS 980 IS.
Pixel area
10.69 µm²
2.89 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: 7.8 µm² (270%)
A pixel on Canon IXUS v2 sensor is approx. 270% bigger than a pixel on Canon IXUS 980 IS.
Pixel density
9.36 MP/cm²
34.74 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: 25.38 µm (271%)
Canon IXUS 980 IS has approx. 271% higher pixel density than Canon IXUS v2.
To learn about the accuracy of these numbers, click here.



Specs

Canon IXUS v2
Canon IXUS 980 IS
Crop factor
6.5
4.6
Total megapixels
2.10
Effective megapixels
2.00
14.70
Optical zoom
2x
3.7x
Digital zoom
Yes
Yes
ISO sensitivity
Auto, 50, 100, 200, 400
Auto, 80 ,100, 200, 400, 800, 1600
RAW
Manual focus
Normal focus range
57 cm
50 cm
Macro focus range
10 cm
5 cm
Focal length (35mm equiv.)
35 - 70 mm
36 - 133 mm
Aperture priority
No
No
Max. aperture
f2.8 - f4.0
f2.8 - f5.8
Max. aperture (35mm equiv.)
f18.2 - f26
f12.9 - f26.7
Metering
Multi, Center-weighted, Spot
Multi, Center-weighted, Spot
Exposure compensation
±2 EV (in 1/3 EV steps)
±2 EV (in 1/3 EV steps)
Shutter priority
No
No
Min. shutter speed
15 sec
15 sec
Max. shutter speed
1/1500 sec
1/1600 sec
Built-in flash
External flash
Viewfinder
Optical (tunnel)
Optical (tunnel)
White balance presets
6
5
Screen size
1.5"
2.5"
Screen resolution
118,000 dots
230,000 dots
Video capture
Max. video resolution
Storage types
Compact Flash (Type I)
SD/SDHC/MMC card
USB
USB 1.0
USB 2.0 (480 Mbit/sec)
HDMI
Wireless
GPS
Battery
Canon Lithium-Ion
Lithium-Ion NB-5L battery
Weight
250 g
205 g
Dimensions
87 x 57 x 27 mm
98 x 62 x 28 mm
Year
2002
2008




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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 IXUS v2 diagonal

The diagonal of IXUS v2 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 IXUS 980 IS diagonal

The diagonal of IXUS 980 IS sensor is not 1/1.7 or 0.59" (14.9 mm) as you might expect, but approximately two thirds of that value - 9.41 mm. If you want to know why, see sensor sizes.

w = 7.53 mm
h = 5.64 mm
Diagonal =  7.53² + 5.64²   = 9.41 mm


Surface area

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

IXUS v2 sensor area

Width = 5.33 mm
Height = 4.00 mm

Surface area = 5.33 × 4.00 = 21.32 mm²

IXUS 980 IS sensor area

Width = 7.53 mm
Height = 5.64 mm

Surface area = 7.53 × 5.64 = 42.47 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 v2 pixel pitch

Sensor width = 5.33 mm
Sensor resolution width = 1631 pixels
Pixel pitch =   5.33  × 1000  = 3.27 µm
1631

IXUS 980 IS pixel pitch

Sensor width = 7.53 mm
Sensor resolution width = 4438 pixels
Pixel pitch =   7.53  × 1000  = 1.7 µm
4438


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 v2 pixel area

Pixel pitch = 3.27 µm

Pixel area = 3.27² = 10.69 µm²

IXUS 980 IS pixel area

Pixel pitch = 1.7 µm

Pixel area = 1.7² = 2.89 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 v2 pixel density

Sensor resolution width = 1631 pixels
Sensor width = 0.533 cm

Pixel density = (1631 / 0.533)² / 1000000 = 9.36 MP/cm²

IXUS 980 IS pixel density

Sensor resolution width = 4438 pixels
Sensor width = 0.753 cm

Pixel density = (4438 / 0.753)² / 1000000 = 34.74 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 v2 sensor resolution

Sensor width = 5.33 mm
Sensor height = 4.00 mm
Effective megapixels = 2.00
r = 5.33/4.00 = 1.33
X =  2.00 × 1000000  = 1226
1.33
Resolution horizontal: X × r = 1226 × 1.33 = 1631
Resolution vertical: X = 1226

Sensor resolution = 1631 x 1226

IXUS 980 IS sensor resolution

Sensor width = 7.53 mm
Sensor height = 5.64 mm
Effective megapixels = 14.70
r = 7.53/5.64 = 1.34
X =  14.70 × 1000000  = 3312
1.34
Resolution horizontal: X × r = 3312 × 1.34 = 4438
Resolution vertical: X = 3312

Sensor resolution = 4438 x 3312


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 v2 crop factor

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

IXUS 980 IS crop factor

Sensor diagonal in mm = 9.41 mm
Crop factor =   43.27  = 4.6
9.41

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 v2 equivalent aperture

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

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

IXUS 980 IS equivalent aperture

Crop factor = 4.6
Aperture = f2.8 - f5.8

35-mm equivalent aperture = (f2.8 - f5.8) × 4.6 = f12.9 - f26.7

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