Canon EOS Digital Rebel vs. Canon PowerShot S5 IS
Comparison
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| Canon EOS Digital Rebel | Canon PowerShot S5 IS | ||||
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Megapixels
6.30
8.00
Max. image resolution
3072 x 2048
3264 x 2448
Sensor
Sensor type
CMOS
CCD
Sensor size
22.7 x 15.1 mm
1/2.5" (~ 5.75 x 4.32 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 »
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 »
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| Canon EOS Digital Rebel | Canon PowerShot S5 IS | |
Surface area:
| 342.77 mm² | vs | 24.84 mm² |
Difference: 317.93 mm² (1280%)
Digital Rebel sensor is approx. 13.8x bigger than S5 IS sensor.
Note: You are comparing cameras of different generations.
There is a 4 year gap between Canon Digital Rebel (2003) and Canon S5 IS (2007).
All things being equal, newer sensor generations generally outperform the older.
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.
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.
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.
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: 51.36 µm² (1657%)
A pixel on Canon Digital Rebel sensor is approx. 1657% bigger than a pixel on Canon S5 IS.
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.
Higher pixel density means smaller pixels and lower pixel density means larger pixels.
To learn about the accuracy of these numbers,
click here.
Specs
Canon Digital Rebel
Canon S5 IS
Total megapixels
6.34
8.20
Effective megapixels
6.30
8.00
Optical zoom
12x
Digital zoom
No
Yes
ISO sensitivity
Auto, 100, 200, 400, 800, 1600
Auto, 80, 100, 200, 400, 800, 1600
RAW
Manual focus
Normal focus range
50 cm
Macro focus range
Focal length (35mm equiv.)
36 - 432 mm
Aperture priority
Yes
Yes
Max. aperture
f2.7 - f3.5
Metering
Centre weighted, Matrix, Spot
Centre weighted, Evaluative, Spot
Exposure compensation
±2 EV (in 1/3 EV steps)
±2 EV (in 1/3 EV steps)
Shutter priority
Yes
Yes
Min. shutter speed
30 sec
15 sec
Max. shutter speed
1/4000 sec
1/3200 sec
Built-in flash
External flash
Viewfinder
Optical (pentamirror)
Electronic
White balance presets
6
6
Screen size
1.8"
2.5"
Screen resolution
118,000 dots
207,000 dots
Video capture
Max. video resolution
Storage types
CompactFlash type I, CompactFlash type II, Microdrive
MultiMedia, SDHC, Secure Digital
USB
USB 1.0
USB 2.0 (480 Mbit/sec)
HDMI
Wireless
GPS
Battery
Canon 1100mAh Li-Ion
AA (4) batteries (NiMH recommended)
Weight
645 g
450 g
Dimensions
142 x 99 x 73 mm
117 x 80 x 78 mm
Year
2003
2007
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Diagonal
Diagonal is calculated by the use of Pythagorean theorem:
where w = sensor width and h = sensor height
| Diagonal = √ | w² + h² |
Canon Digital Rebel diagonal
w = 22.70 mm
h = 15.10 mm
h = 15.10 mm
| Diagonal = √ | 22.70² + 15.10² | = 27.26 mm |
Canon S5 IS diagonal
The diagonal of S5 IS 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
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.
Digital Rebel sensor area
Width = 22.70 mm
Height = 15.10 mm
Surface area = 22.70 × 15.10 = 342.77 mm²
Height = 15.10 mm
Surface area = 22.70 × 15.10 = 342.77 mm²
S5 IS sensor area
Width = 5.75 mm
Height = 4.32 mm
Surface area = 5.75 × 4.32 = 24.84 mm²
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 |
Digital Rebel pixel pitch
Sensor width = 22.70 mm
Sensor resolution width = 3074 pixels
Sensor resolution width = 3074 pixels
| Pixel pitch = | 22.70 | × 1000 | = 7.38 µm |
| 3074 |
S5 IS pixel pitch
Sensor width = 5.75 mm
Sensor resolution width = 3262 pixels
Sensor resolution width = 3262 pixels
| Pixel pitch = | 5.75 | × 1000 | = 1.76 µm |
| 3262 |
Pixel area
The area of one pixel can be calculated by simply squaring the pixel pitch:
You could also divide sensor surface area with effective megapixels:
Pixel area = pixel pitch²
You could also divide sensor surface area with effective megapixels:
| Pixel area = | sensor surface area in mm² |
| effective megapixels |
Digital Rebel pixel area
Pixel pitch = 7.38 µm
Pixel area = 7.38² = 54.46 µm²
Pixel area = 7.38² = 54.46 µm²
S5 IS pixel area
Pixel pitch = 1.76 µm
Pixel area = 1.76² = 3.1 µm²
Pixel area = 1.76² = 3.1 µm²
Pixel density
Pixel density can be calculated with the following formula:
One could also use this 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 |
Digital Rebel pixel density
Sensor resolution width = 3074 pixels
Sensor width = 2.27 cm
Pixel density = (3074 / 2.27)² / 1000000 = 1.83 MP/cm²
Sensor width = 2.27 cm
Pixel density = (3074 / 2.27)² / 1000000 = 1.83 MP/cm²
S5 IS pixel density
Sensor resolution width = 3262 pixels
Sensor width = 0.575 cm
Pixel density = (3262 / 0.575)² / 1000000 = 32.18 MP/cm²
Sensor width = 0.575 cm
Pixel density = (3262 / 0.575)² / 1000000 = 32.18 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:
3. To get sensor resolution we then multiply X with the corresponding ratio:
Resolution horizontal: X × r
Resolution vertical: X
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 → |
|
Resolution horizontal: X × r
Resolution vertical: X
Digital Rebel sensor resolution
Sensor width = 22.70 mm
Sensor height = 15.10 mm
Effective megapixels = 6.30
Resolution horizontal: X × r = 2049 × 1.5 = 3074
Resolution vertical: X = 2049
Sensor resolution = 3074 x 2049
Sensor height = 15.10 mm
Effective megapixels = 6.30
| r = 22.70/15.10 = 1.5 |
|
Resolution vertical: X = 2049
Sensor resolution = 3074 x 2049
S5 IS sensor resolution
Sensor width = 5.75 mm
Sensor height = 4.32 mm
Effective megapixels = 8.00
Resolution horizontal: X × r = 2453 × 1.33 = 3262
Resolution vertical: X = 2453
Sensor resolution = 3262 x 2453
Sensor height = 4.32 mm
Effective megapixels = 8.00
| r = 5.75/4.32 = 1.33 |
|
Resolution vertical: X = 2453
Sensor resolution = 3262 x 2453
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 |
Digital Rebel crop factor
Sensor diagonal in mm = 27.26 mm
| Crop factor = | 43.27 | = 1.59 |
| 27.26 |
S5 IS 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).
Digital Rebel equivalent aperture
Aperture is a lens characteristic, so it's calculated only for
fixed lens cameras. If you want to know the equivalent aperture for
Canon Digital Rebel, take the aperture of the lens
you're using and multiply it with crop factor.
Crop factor for Canon Digital Rebel is 1.59
Crop factor for Canon Digital Rebel is 1.59
S5 IS equivalent aperture
Crop factor = 6.02
Aperture = f2.7 - f3.5
35-mm equivalent aperture = (f2.7 - f3.5) × 6.02 = f16.3 - f21.1
Aperture = f2.7 - f3.5
35-mm equivalent aperture = (f2.7 - f3.5) × 6.02 = f16.3 - f21.1
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Actual size is currently adjusted to screen.
If your screen (phone, tablet, or monitor) is not in diagonal, then the actual size of a sensor won't be shown correctly.
If your screen (phone, tablet, or monitor) is not in diagonal, then the actual size of a sensor won't be shown correctly.