Canon PowerShot SD4500 IS vs. Canon PowerShot ELPH 350 HS
Comparison
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Canon PowerShot SD4500 IS | Canon PowerShot ELPH 350 HS | ||||
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Megapixels
10.00
20.20
Max. image resolution
3648 x 2736
5184 x 3888
Sensor
Sensor type
CMOS
CMOS
Sensor size
1/2.3" (~ 6.16 x 4.62 mm)
1/2.3" (~ 6.16 x 4.62 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 PowerShot SD4500 IS | Canon PowerShot ELPH 350 HS |
Surface area:
28.46 mm² | vs | 28.46 mm² |
Difference: 0 mm² (0%)
SD4500 IS and ELPH 350 HS sensors are the same size.
Note: You are comparing cameras of different generations.
There is a 5 year gap between Canon SD4500 IS (2010) and Canon ELPH 350 HS (2015).
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: 1.44 µm² (101%)
A pixel on Canon SD4500 IS sensor is approx. 101% bigger than a pixel on Canon ELPH 350 HS.
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 SD4500 IS
Canon ELPH 350 HS
Total megapixels
10.60
21.10
Effective megapixels
10.00
20.20
Optical zoom
10x
12x
Digital zoom
Yes
Yes
ISO sensitivity
Auto, 125, 200, 400, 800, 1600, 3200
Auto, 80-1600
RAW
Manual focus
Normal focus range
30 cm
5 cm
Macro focus range
1 cm
1 cm
Focal length (35mm equiv.)
36 - 360 mm
25 - 300 mm
Aperture priority
No
No
Max. aperture
f3.4 - f5.6
f3.6 - f7.0
Metering
Centre weighted, Evaluative, Spot
Multi, Center-weighted, Spot
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
15 sec
Max. shutter speed
1/4000 sec
1/2000 sec
Built-in flash
External flash
Viewfinder
None
None
White balance presets
6
5
Screen size
3"
3"
Screen resolution
230,000 dots
461,000 dots
Video capture
Max. video resolution
1920x1080 (30p)
Storage types
SDHC, SDXC, Secure Digital
SD/SDHC/SDXC
USB
USB 2.0 (480 Mbit/sec)
USB 2.0 (480 Mbit/sec)
HDMI
Wireless
GPS
Battery
Lithium-Ion NB-9L battery
Battery Pack NB-11L/NB-11LH
Weight
190 g
147 g
Dimensions
101 x 59 x 22 mm
99.6 x 58.0 x 22.8 mm
Year
2010
2015
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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 SD4500 IS diagonal
The diagonal of SD4500 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
w = 6.16 mm
h = 4.62 mm
Diagonal = √ | 6.16² + 4.62² | = 7.70 mm |
Canon ELPH 350 HS diagonal
The diagonal of ELPH 350 HS 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
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.
SD4500 IS sensor area
Width = 6.16 mm
Height = 4.62 mm
Surface area = 6.16 × 4.62 = 28.46 mm²
Height = 4.62 mm
Surface area = 6.16 × 4.62 = 28.46 mm²
ELPH 350 HS sensor area
Width = 6.16 mm
Height = 4.62 mm
Surface area = 6.16 × 4.62 = 28.46 mm²
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 |
SD4500 IS pixel pitch
Sensor width = 6.16 mm
Sensor resolution width = 3647 pixels
Sensor resolution width = 3647 pixels
Pixel pitch = | 6.16 | × 1000 | = 1.69 µm |
3647 |
ELPH 350 HS pixel pitch
Sensor width = 6.16 mm
Sensor resolution width = 5183 pixels
Sensor resolution width = 5183 pixels
Pixel pitch = | 6.16 | × 1000 | = 1.19 µm |
5183 |
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 |
SD4500 IS pixel area
Pixel pitch = 1.69 µm
Pixel area = 1.69² = 2.86 µm²
Pixel area = 1.69² = 2.86 µm²
ELPH 350 HS pixel area
Pixel pitch = 1.19 µm
Pixel area = 1.19² = 1.42 µm²
Pixel area = 1.19² = 1.42 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 |
SD4500 IS pixel density
Sensor resolution width = 3647 pixels
Sensor width = 0.616 cm
Pixel density = (3647 / 0.616)² / 1000000 = 35.05 MP/cm²
Sensor width = 0.616 cm
Pixel density = (3647 / 0.616)² / 1000000 = 35.05 MP/cm²
ELPH 350 HS pixel density
Sensor resolution width = 5183 pixels
Sensor width = 0.616 cm
Pixel density = (5183 / 0.616)² / 1000000 = 70.79 MP/cm²
Sensor width = 0.616 cm
Pixel density = (5183 / 0.616)² / 1000000 = 70.79 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 → |
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Resolution horizontal: X × r
Resolution vertical: X
SD4500 IS sensor resolution
Sensor width = 6.16 mm
Sensor height = 4.62 mm
Effective megapixels = 10.00
Resolution horizontal: X × r = 2742 × 1.33 = 3647
Resolution vertical: X = 2742
Sensor resolution = 3647 x 2742
Sensor height = 4.62 mm
Effective megapixels = 10.00
r = 6.16/4.62 = 1.33 |
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Resolution vertical: X = 2742
Sensor resolution = 3647 x 2742
ELPH 350 HS sensor resolution
Sensor width = 6.16 mm
Sensor height = 4.62 mm
Effective megapixels = 20.20
Resolution horizontal: X × r = 3897 × 1.33 = 5183
Resolution vertical: X = 3897
Sensor resolution = 5183 x 3897
Sensor height = 4.62 mm
Effective megapixels = 20.20
r = 6.16/4.62 = 1.33 |
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Resolution vertical: X = 3897
Sensor resolution = 5183 x 3897
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 |
SD4500 IS crop factor
Sensor diagonal in mm = 7.70 mm
Crop factor = | 43.27 | = 5.62 |
7.70 |
ELPH 350 HS 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).
SD4500 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
Aperture = f3.4 - f5.6
35-mm equivalent aperture = (f3.4 - f5.6) × 5.62 = f19.1 - f31.5
ELPH 350 HS equivalent aperture
Crop factor = 5.62
Aperture = f3.6 - f7.0
35-mm equivalent aperture = (f3.6 - f7.0) × 5.62 = f20.2 - f39.3
Aperture = f3.6 - f7.0
35-mm equivalent aperture = (f3.6 - f7.0) × 5.62 = f20.2 - f39.3
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