Canon Digital IXUS v vs. Canon PowerShot SX130 IS

Comparison

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Digital IXUS v image
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PowerShot SX130 IS image
Canon Digital IXUS v Canon PowerShot SX130 IS
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Megapixels
2.02
12.00
Max. image resolution
1600 x 1200
4000 x 3000

Sensor

Sensor type
CCD
CCD
Sensor size
1/2.7" (~ 5.33 x 4 mm)
1/2.3" (~ 6.16 x 4.62 mm)
Sensor resolution
1639 x 1232
3995 x 3004
Diagonal
6.66 mm
7.70 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 : 1.33
(ratio)
Canon Digital IXUS v Canon PowerShot SX130 IS
Surface area:
21.32 mm² vs 28.46 mm²
Difference: 7.14 mm² (33%)
SX130 IS sensor is approx. 1.33x bigger than IXUS v sensor.
Note: You are comparing sensors of very different generations. There is a gap of 9 years between Canon IXUS v (2001) and Canon SX130 IS (2010). Nine years is a lot of time in terms of technology, meaning newer sensors are overall much more efficient than the older ones.
Pixel pitch
3.25 µm
1.54 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: 1.71 µm (111%)
Pixel pitch of IXUS v is approx. 111% higher than pixel pitch of SX130 IS.
Pixel area
10.56 µm²
2.37 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: 8.19 µm² (346%)
A pixel on Canon IXUS v sensor is approx. 346% bigger than a pixel on Canon SX130 IS.
Pixel density
9.46 MP/cm²
42.06 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: 32.6 µm (345%)
Canon SX130 IS has approx. 345% higher pixel density than Canon IXUS v.
To learn about the accuracy of these numbers, click here.



Specs

Canon IXUS v
Canon SX130 IS
Crop factor
6.5
5.62
Total megapixels
2.11
Effective megapixels
2.02
12.00
Optical zoom
2x
12x
Digital zoom
Yes
Yes
ISO sensitivity
100, 150
Auto, 80, 100, 200, 400, 800, 1600
RAW
Manual focus
Normal focus range
57 cm
35 cm
Macro focus range
10 cm
1 cm
Focal length (35mm equiv.)
35 - 70 mm
28 - 336 mm
Aperture priority
No
Yes
Max. aperture
f2.8 - f4
f3.4 - f5.6
Max. aperture (35mm equiv.)
f18.2 - f26
f19.1 - f31.5
Metering
Centre weighted
Centre weighted, Evaluative, Spot
Exposure compensation
±2 EV (in 1/3 EV steps)
±2 EV (in 1/3 EV steps)
Shutter priority
No
Yes
Min. shutter speed
1 sec
15 sec
Max. shutter speed
1/1500 sec
1/2500 sec
Built-in flash
External flash
Viewfinder
Optical
None
White balance presets
5
6
Screen size
1.5"
3"
Screen resolution
120,000 dots
230,000 dots
Video capture
Max. video resolution
Storage types
CompactFlash type I
SDHC, SDXC, Secure Digital
USB
USB 1.1
USB 2.0 (480 Mbit/sec)
HDMI
Wireless
GPS
Battery
Canon Lithium-Ion
2 x AA batteries (NiMH recommended)
Weight
250 g
308 g
Dimensions
87 x 57 x 26.9 mm
113 x 73 x 46 mm
Year
2001
2010




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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 v diagonal

The diagonal of IXUS v 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 SX130 IS diagonal

The diagonal of SX130 IS sensor is not 1/2.3 or 0.43" (11 mm) as you might expect, but approximately two thirds of that value - 7.7 mm. If you want to know why, see sensor sizes.

w = 6.16 mm
h = 4.62 mm
Diagonal =  6.16² + 4.62²   = 7.70 mm


Surface area

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

IXUS v sensor area

Width = 5.33 mm
Height = 4.00 mm

Surface area = 5.33 × 4.00 = 21.32 mm²

SX130 IS sensor area

Width = 6.16 mm
Height = 4.62 mm

Surface area = 6.16 × 4.62 = 28.46 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 v pixel pitch

Sensor width = 5.33 mm
Sensor resolution width = 1639 pixels
Pixel pitch =   5.33  × 1000  = 3.25 µm
1639

SX130 IS pixel pitch

Sensor width = 6.16 mm
Sensor resolution width = 3995 pixels
Pixel pitch =   6.16  × 1000  = 1.54 µm
3995


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 v pixel area

Pixel pitch = 3.25 µm

Pixel area = 3.25² = 10.56 µm²

SX130 IS pixel area

Pixel pitch = 1.54 µm

Pixel area = 1.54² = 2.37 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 v pixel density

Sensor resolution width = 1639 pixels
Sensor width = 0.533 cm

Pixel density = (1639 / 0.533)² / 1000000 = 9.46 MP/cm²

SX130 IS pixel density

Sensor resolution width = 3995 pixels
Sensor width = 0.616 cm

Pixel density = (3995 / 0.616)² / 1000000 = 42.06 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 v sensor resolution

Sensor width = 5.33 mm
Sensor height = 4.00 mm
Effective megapixels = 2.02
r = 5.33/4.00 = 1.33
X =  2.02 × 1000000  = 1232
1.33
Resolution horizontal: X × r = 1232 × 1.33 = 1639
Resolution vertical: X = 1232

Sensor resolution = 1639 x 1232

SX130 IS sensor resolution

Sensor width = 6.16 mm
Sensor height = 4.62 mm
Effective megapixels = 12.00
r = 6.16/4.62 = 1.33
X =  12.00 × 1000000  = 3004
1.33
Resolution horizontal: X × r = 3004 × 1.33 = 3995
Resolution vertical: X = 3004

Sensor resolution = 3995 x 3004


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 v crop factor

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

SX130 IS crop factor

Sensor diagonal in mm = 7.70 mm
Crop factor =   43.27  = 5.62
7.70

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 v equivalent aperture

Crop factor = 6.5
Aperture = f2.8 - f4

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

SX130 IS equivalent aperture

Crop factor = 5.62
Aperture = f3.4 - f5.6

35-mm equivalent aperture = (f3.4 - f5.6) × 5.62 = f19.1 - f31.5

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