Canon IXY DIGITAL 2000 IS vs. Nikon Coolpix A100

Comparison

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IXY DIGITAL 2000 IS image
vs
Coolpix A100 image
Canon IXY DIGITAL 2000 IS Nikon Coolpix A100
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Megapixels
12.10
20.10
Max. image resolution
4000 x 3000
5152 x 3864

Sensor

Sensor type
CCD
CCD
Sensor size
1/1.7" (~ 7.53 x 5.64 mm)
1/2.3" (~ 6.16 x 4.62 mm)
Sensor resolution
4027 x 3005
5171 x 3888
Diagonal
9.41 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
1.49 : 1
(ratio)
Canon IXY DIGITAL 2000 IS Nikon Coolpix A100
Surface area:
42.47 mm² vs 28.46 mm²
Difference: 14.01 mm² (49%)
IXY DIGITAL 2000 IS sensor is approx. 1.49x bigger than A100 sensor.
Note: You are comparing sensors of very different generations. There is a gap of 9 years between Canon IXY DIGITAL 2000 IS (2007) and Nikon A100 (2016). 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
1.87 µm
1.19 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: 0.68 µm (57%)
Pixel pitch of IXY DIGITAL 2000 IS is approx. 57% higher than pixel pitch of A100.
Pixel area
3.5 µm²
1.42 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: 2.08 µm² (146%)
A pixel on Canon IXY DIGITAL 2000 IS sensor is approx. 146% bigger than a pixel on Nikon A100.
Pixel density
28.6 MP/cm²
70.47 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: 41.87 µm (146%)
Nikon A100 has approx. 146% higher pixel density than Canon IXY DIGITAL 2000 IS.
To learn about the accuracy of these numbers, click here.



Specs

Canon IXY DIGITAL 2000 IS
Nikon A100
Crop factor
4.6
5.62
Total megapixels
12.40
20.48
Effective megapixels
12.10
20.10
Optical zoom
3.7x
5x
Digital zoom
Yes
Yes
ISO sensitivity
Auto, 80 ,100, 200, 400, 800, 1600
Auto, 80-3200
RAW
Manual focus
Normal focus range
50 cm
50 cm
Macro focus range
5 cm
10 cm
Focal length (35mm equiv.)
36 - 133 mm
26 - 130 mm
Aperture priority
No
No
Max. aperture
f2.8 - f5.8
f3.2 - f6.5
Max. aperture (35mm equiv.)
f12.9 - f26.7
f18 - f36.5
Metering
Multi, Center-weighted, Spot
Multi, Center-weighted
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
4 sec
Max. shutter speed
1/1600 sec
1/2000 sec
Built-in flash
External flash
Viewfinder
Optical (tunnel)
None
White balance presets
5
5
Screen size
2.5"
2.7"
Screen resolution
230,000 dots
230,000 dots
Video capture
Max. video resolution
1280x720 (30p)
Storage types
SD/SDHC/MMC card
SD/SDHC/SDXC
USB
USB 2.0 (480 Mbit/sec)
USB 2.0 (480 Mbit/sec)
HDMI
Wireless
GPS
Battery
Lithium-Ion NB-5L battery
EN-EL19 lithium-ion battery
Weight
191 g
119 g
Dimensions
96 x 60 x 28 mm
94.5 x 58.6 x 19.8 mm
Year
2007
2016




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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 IXY DIGITAL 2000 IS diagonal

The diagonal of IXY DIGITAL 2000 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

Nikon A100 diagonal

The diagonal of A100 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.

IXY DIGITAL 2000 IS sensor area

Width = 7.53 mm
Height = 5.64 mm

Surface area = 7.53 × 5.64 = 42.47 mm²

A100 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

IXY DIGITAL 2000 IS pixel pitch

Sensor width = 7.53 mm
Sensor resolution width = 4027 pixels
Pixel pitch =   7.53  × 1000  = 1.87 µm
4027

A100 pixel pitch

Sensor width = 6.16 mm
Sensor resolution width = 5171 pixels
Pixel pitch =   6.16  × 1000  = 1.19 µm
5171


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

IXY DIGITAL 2000 IS pixel area

Pixel pitch = 1.87 µm

Pixel area = 1.87² = 3.5 µm²

A100 pixel area

Pixel pitch = 1.19 µm

Pixel area = 1.19² = 1.42 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

IXY DIGITAL 2000 IS pixel density

Sensor resolution width = 4027 pixels
Sensor width = 0.753 cm

Pixel density = (4027 / 0.753)² / 1000000 = 28.6 MP/cm²

A100 pixel density

Sensor resolution width = 5171 pixels
Sensor width = 0.616 cm

Pixel density = (5171 / 0.616)² / 1000000 = 70.47 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

IXY DIGITAL 2000 IS sensor resolution

Sensor width = 7.53 mm
Sensor height = 5.64 mm
Effective megapixels = 12.10
r = 7.53/5.64 = 1.34
X =  12.10 × 1000000  = 3005
1.34
Resolution horizontal: X × r = 3005 × 1.34 = 4027
Resolution vertical: X = 3005

Sensor resolution = 4027 x 3005

A100 sensor resolution

Sensor width = 6.16 mm
Sensor height = 4.62 mm
Effective megapixels = 20.10
r = 6.16/4.62 = 1.33
X =  20.10 × 1000000  = 3888
1.33
Resolution horizontal: X × r = 3888 × 1.33 = 5171
Resolution vertical: X = 3888

Sensor resolution = 5171 x 3888


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


IXY DIGITAL 2000 IS crop factor

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

A100 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).

IXY DIGITAL 2000 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

A100 equivalent aperture

Crop factor = 5.62
Aperture = f3.2 - f6.5

35-mm equivalent aperture = (f3.2 - f6.5) × 5.62 = f18 - f36.5

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