Fujifilm FinePix M603 vs. Canon PowerShot A550

Comparison

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FinePix M603 image
vs
PowerShot A550 image
Fujifilm FinePix M603 Canon PowerShot A550
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Megapixels
3.10
7.10
Max. image resolution
2832 x 2128
3072 x 2304

Sensor

Sensor type
CCD
CCD
Sensor size
1/1.7" (~ 7.53 x 5.64 mm)
1/2.5" (~ 5.75 x 4.32 mm)
Sensor resolution
2038 x 1521
3072 x 2310
Diagonal
9.41 mm
7.19 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
1.71 : 1
(ratio)
Fujifilm FinePix M603 Canon PowerShot A550
Surface area:
42.47 mm² vs 24.84 mm²
Difference: 17.63 mm² (71%)
M603 sensor is approx. 1.71x bigger than A550 sensor.
Note: You are comparing cameras of different generations. There is a 5 year gap between Fujifilm M603 (2002) and Canon A550 (2007). All things being equal, newer sensor generations generally outperform the older.
Pixel pitch
3.69 µm
1.87 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: 1.82 µm (97%)
Pixel pitch of M603 is approx. 97% higher than pixel pitch of A550.
Pixel area
13.62 µm²
3.5 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: 10.12 µm² (289%)
A pixel on Fujifilm M603 sensor is approx. 289% bigger than a pixel on Canon A550.
Pixel density
7.33 MP/cm²
28.54 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: 21.21 µm (289%)
Canon A550 has approx. 289% higher pixel density than Fujifilm M603.
To learn about the accuracy of these numbers, click here.



Specs

Fujifilm M603
Canon A550
Crop factor
4.6
6.02
Total megapixels
3.30
7.10
Effective megapixels
3.10
7.10
Optical zoom
2x
4x
Digital zoom
Yes
Yes
ISO sensitivity
160, 200, 400, 800, 1600
Auto, 80, 100, 200, 400, 800
RAW
Manual focus
Normal focus range
60 cm
45 cm
Macro focus range
20 cm
5 cm
Focal length (35mm equiv.)
38 - 76 mm
35 - 140 mm
Aperture priority
No
No
Max. aperture
f3.2
f2.6 - f5.5
Max. aperture (35mm equiv.)
f14.7
f15.7 - f33.1
Metering
64-segment, Multi Spot, Spot
Centre weighted, Evaluative, Spot
Exposure compensation
±2 EV (in 1/3 EV steps)
±2 EV (in 1/3 EV steps)
Shutter priority
No
No
Min. shutter speed
1/4 sec
15 sec
Max. shutter speed
1/2000 sec
1/2000 sec
Built-in flash
External flash
Viewfinder
Optical (tunnel)
Optical (tunnel)
White balance presets
7
6
Screen size
2.5"
2"
Screen resolution
118,000 dots
86,000 dots
Video capture
Max. video resolution
Storage types
CompactFlash type I, CompactFlash type II, Microdrive, xD Picture
Secure Digital
USB
USB 1.0
USB 2.0 (480 Mbit/sec)
HDMI
Wireless
GPS
Battery
Lithium-Ion (NP-60)
AA (2) batteries (NiMH recommended)
Weight
280 g
160 g
Dimensions
64.5 x 93.3 x 31.6 mm
91.2 x 64.0 x 43.1 mm
Year
2002
2007




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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

Fujifilm M603 diagonal

The diagonal of M603 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

Canon A550 diagonal

The diagonal of A550 sensor is not 1/2.5 or 0.4" (10.2 mm) as you might expect, but approximately two thirds of that value - 7.19 mm. If you want to know why, see sensor sizes.

w = 5.75 mm
h = 4.32 mm
Diagonal =  5.75² + 4.32²   = 7.19 mm


Surface area

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

M603 sensor area

Width = 7.53 mm
Height = 5.64 mm

Surface area = 7.53 × 5.64 = 42.47 mm²

A550 sensor area

Width = 5.75 mm
Height = 4.32 mm

Surface area = 5.75 × 4.32 = 24.84 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

M603 pixel pitch

Sensor width = 7.53 mm
Sensor resolution width = 2038 pixels
Pixel pitch =   7.53  × 1000  = 3.69 µm
2038

A550 pixel pitch

Sensor width = 5.75 mm
Sensor resolution width = 3072 pixels
Pixel pitch =   5.75  × 1000  = 1.87 µm
3072


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

M603 pixel area

Pixel pitch = 3.69 µm

Pixel area = 3.69² = 13.62 µm²

A550 pixel area

Pixel pitch = 1.87 µm

Pixel area = 1.87² = 3.5 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

M603 pixel density

Sensor resolution width = 2038 pixels
Sensor width = 0.753 cm

Pixel density = (2038 / 0.753)² / 1000000 = 7.33 MP/cm²

A550 pixel density

Sensor resolution width = 3072 pixels
Sensor width = 0.575 cm

Pixel density = (3072 / 0.575)² / 1000000 = 28.54 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

M603 sensor resolution

Sensor width = 7.53 mm
Sensor height = 5.64 mm
Effective megapixels = 3.10
r = 7.53/5.64 = 1.34
X =  3.10 × 1000000  = 1521
1.34
Resolution horizontal: X × r = 1521 × 1.34 = 2038
Resolution vertical: X = 1521

Sensor resolution = 2038 x 1521

A550 sensor resolution

Sensor width = 5.75 mm
Sensor height = 4.32 mm
Effective megapixels = 7.10
r = 5.75/4.32 = 1.33
X =  7.10 × 1000000  = 2310
1.33
Resolution horizontal: X × r = 2310 × 1.33 = 3072
Resolution vertical: X = 2310

Sensor resolution = 3072 x 2310


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


M603 crop factor

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

A550 crop factor

Sensor diagonal in mm = 7.19 mm
Crop factor =   43.27  = 6.02
7.19

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).

M603 equivalent aperture

Crop factor = 4.6
Aperture = f3.2

35-mm equivalent aperture = (f3.2) × 4.6 = f14.7

A550 equivalent aperture

Crop factor = 6.02
Aperture = f2.6 - f5.5

35-mm equivalent aperture = (f2.6 - f5.5) × 6.02 = f15.7 - f33.1

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