Canon PowerShot A630 vs. Fujifilm FinePix T500

Comparison

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PowerShot A630 image
vs
FinePix T500 image
Canon PowerShot A630 Fujifilm FinePix T500
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Megapixels
8.00
16.00
Max. image resolution
3264 x 2448
4608 x 3440

Sensor

Sensor type
CCD
CCD
Sensor size
1/1.8" (~ 7.11 x 5.33 mm)
1/2.3" (~ 6.16 x 4.62 mm)
Sensor resolution
3262 x 2453
4612 x 3468
Diagonal
8.89 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
1.33 : 1
(ratio)
Canon PowerShot A630 Fujifilm FinePix T500
Surface area:
37.90 mm² vs 28.46 mm²
Difference: 9.44 mm² (33%)
A630 sensor is approx. 1.33x bigger than T500 sensor.
Note: You are comparing sensors of very different generations. There is a gap of 7 years between Canon A630 (2006) and Fujifilm T500 (2013). Seven years is a lot of time in terms of technology, meaning newer sensors are overall much more efficient than the older ones.
Pixel pitch
2.18 µm
1.34 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: 0.84 µm (63%)
Pixel pitch of A630 is approx. 63% higher than pixel pitch of T500.
Pixel area
4.75 µm²
1.8 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: 2.95 µm² (164%)
A pixel on Canon A630 sensor is approx. 164% bigger than a pixel on Fujifilm T500.
Pixel density
21.05 MP/cm²
56.06 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: 35.01 µm (166%)
Fujifilm T500 has approx. 166% higher pixel density than Canon A630.
To learn about the accuracy of these numbers, click here.



Specs

Canon A630
Fujifilm T500
Crop factor
4.87
5.62
Total megapixels
8.20
Effective megapixels
8.00
16.00
Optical zoom
4x
12x
Digital zoom
Yes
Yes
ISO sensitivity
Auto, 80, 100, 200, 400, 800
Auto, 100, 200, 400, 800, 1600, 3200
RAW
Manual focus
Normal focus range
40 cm
40 cm
Macro focus range
1 cm
5 cm
Focal length (35mm equiv.)
35 - 140 mm
24 - 288 mm
Aperture priority
Yes
No
Max. aperture
f2.8 - f4.1
f3.4 - f6.9
Max. aperture (35mm equiv.)
f13.6 - f20
f19.1 - f38.8
Metering
Centre weighted, Matrix, Spot
Multi, Center-weighted, Spot
Exposure compensation
±2 EV (in 1/3 EV steps)
±2 EV (in 1/3 EV steps)
Shutter priority
Yes
No
Min. shutter speed
15 sec
8 sec
Max. shutter speed
1/2500 sec
1/2000 sec
Built-in flash
External flash
Viewfinder
Optical (tunnel)
None
White balance presets
6
6
Screen size
2.5"
2.7"
Screen resolution
115,000 dots
230,000 dots
Video capture
Max. video resolution
Storage types
MultiMedia, Secure Digital
SD/SDHC/SDXC
USB
USB 2.0 (480 Mbit/sec)
USB 2.0 (480 Mbit/sec)
HDMI
Wireless
GPS
Battery
AA NiMH (4) batteries included
Li-ion battery NP-45A
Weight
327 g
136 g
Dimensions
110 x 66 x 49 mm
99.4 x 57.0 x 25.8 mm
Year
2006
2013




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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 A630 diagonal

The diagonal of A630 sensor is not 1/1.8 or 0.56" (14.1 mm) as you might expect, but approximately two thirds of that value - 8.89 mm. If you want to know why, see sensor sizes.

w = 7.11 mm
h = 5.33 mm
Diagonal =  7.11² + 5.33²   = 8.89 mm

Fujifilm T500 diagonal

The diagonal of T500 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.

A630 sensor area

Width = 7.11 mm
Height = 5.33 mm

Surface area = 7.11 × 5.33 = 37.90 mm²

T500 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

A630 pixel pitch

Sensor width = 7.11 mm
Sensor resolution width = 3262 pixels
Pixel pitch =   7.11  × 1000  = 2.18 µm
3262

T500 pixel pitch

Sensor width = 6.16 mm
Sensor resolution width = 4612 pixels
Pixel pitch =   6.16  × 1000  = 1.34 µm
4612


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

A630 pixel area

Pixel pitch = 2.18 µm

Pixel area = 2.18² = 4.75 µm²

T500 pixel area

Pixel pitch = 1.34 µm

Pixel area = 1.34² = 1.8 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

A630 pixel density

Sensor resolution width = 3262 pixels
Sensor width = 0.711 cm

Pixel density = (3262 / 0.711)² / 1000000 = 21.05 MP/cm²

T500 pixel density

Sensor resolution width = 4612 pixels
Sensor width = 0.616 cm

Pixel density = (4612 / 0.616)² / 1000000 = 56.06 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

A630 sensor resolution

Sensor width = 7.11 mm
Sensor height = 5.33 mm
Effective megapixels = 8.00
r = 7.11/5.33 = 1.33
X =  8.00 × 1000000  = 2453
1.33
Resolution horizontal: X × r = 2453 × 1.33 = 3262
Resolution vertical: X = 2453

Sensor resolution = 3262 x 2453

T500 sensor resolution

Sensor width = 6.16 mm
Sensor height = 4.62 mm
Effective megapixels = 16.00
r = 6.16/4.62 = 1.33
X =  16.00 × 1000000  = 3468
1.33
Resolution horizontal: X × r = 3468 × 1.33 = 4612
Resolution vertical: X = 3468

Sensor resolution = 4612 x 3468


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


A630 crop factor

Sensor diagonal in mm = 8.89 mm
Crop factor =   43.27  = 4.87
8.89

T500 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).

A630 equivalent aperture

Crop factor = 4.87
Aperture = f2.8 - f4.1

35-mm equivalent aperture = (f2.8 - f4.1) × 4.87 = f13.6 - f20

T500 equivalent aperture

Crop factor = 5.62
Aperture = f3.4 - f6.9

35-mm equivalent aperture = (f3.4 - f6.9) × 5.62 = f19.1 - f38.8

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