Canon PowerShot SX210 IS vs. Canon PowerShot SX280 HS

Comparison

PowerShot SX210 IS image
vs.
PowerShot SX280 HS image

Comparison

Canon PowerShot SX210 IS Canon PowerShot SX280 HS
Megapixels
14.10 12.10
Max. resolution
4320 x 3240 4000 x 3000
Price
Amazon, B&H Photo, Adorama Amazon, B&H Photo, Adorama

Sensor

Sensor type
CCD BSI CMOS
Sensor size
1/2.3" (~ 6.16 x 4.62 mm) 1/2.3" (~ 6.16 x 4.62 mm)
Sensor resolution
4330 x 3256  4011 x 3016 
Diagonal
7.70 mm  7.70 mm 
Surface area
28.46 mm²  28.46 mm² 
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 sizes:
Canon PowerShot SX210 IS
vs.
Canon PowerShot SX280 HS
 
Surface area:
Canon PowerShot SX210 IS
Canon PowerShot SX280 HS
Difference: 0 mm² (0%)
Canon PowerShot SX210 IS and Canon PowerShot SX280 HS have the same surface area.
Note: You are comparing cameras of different generations. There is a 3 year gap between Canon PowerShot SX210 IS (2010) and Canon PowerShot SX280 HS (2013). All things being equal, newer sensor generations generally outperform the older.
Pixel pitch
1.42 µm  1.54 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.
Pixel pitch
Canon PowerShot SX210 IS
Canon PowerShot SX280 HS
Difference: 0.12 µm (8%)
Pixel pitch of Canon PowerShot SX280 HS is approx. 8% higher than pixel pitch of Canon PowerShot SX210 IS.
Pixel area
2.02 µm²  2.37 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:
Canon PowerShot SX210 IS
vs.
Canon PowerShot SX280 HS
Pixel area difference: 0.35 µm² (17%)
A pixel on Canon PowerShot SX280 HS sensor is approx. 17% bigger than a pixel on Canon PowerShot SX210 IS.
Pixel density
49.41 MP/cm²  42.4 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.
Pixel density
Canon PowerShot SX210 IS
Canon PowerShot SX280 HS
Difference: 7.01 MP/cm² (17%)
Canon PowerShot SX210 IS has approx. 17% higher pixel density than Canon PowerShot SX280 HS.
To learn about the accuracy of these numbers, click here.

Other specifications

Crop factor
5.62  5.62 
Total megapixels
14.50 12.80
Effective megapixels
14.10 12.10
Optical zoom
14x 20x
Digital zoom
Yes Yes
Iso
Auto, 80, 100, 200, 400, 800, 1600 Auto 100, 200, 400, 800, 1600, 3200, 6400
Auto focus
Yes Yes
Manual focus
Yes Yes
Normal focus range
5 cm n/a
Macro focus range
5 cm 5 cm
Focal length (35mm equiv.)
28 - 392 mm 25 -€“ 500 mm
Aperture priority
Yes Yes
Aperture
f3.1 - f5.9 f3.5 - f6.8
Aperture (35mm equiv.)
f17.4 - f33.2  f19.7 - f38.2 
Metering
Centre weighted, Evaluative, Spot Multi, Center-weighted, Spot
Exposure compensation
-2EV - +2EV with 1/3EV steps ±2 (at 1/3 EV steps)
Shutter priority
Yes Yes
Min. shutter speed
15 sec 15 sec
Max. shutter speed
1/3200 sec 1/3200 sec
Flash modes
Anti red-eye, Auto, Fill in, Off, Slow flash Auto, On, Off, Red-Eye, Slow Sync
Built-in flash
Yes Yes
External flash
No Yes
Viewfinder
None None
White balance presets
5 6
LCD display
Yes Yes
LCD size
3" 3"
LCD resolution
230,000 461,000
Min. image resolution
640 x 480 640 x 480
Selftimer
Yes Yes
Storage types
SDHC, SDXC, Secure Digital SD/SDHC/SDXC
USB
USB 2.0 (480 Mbit/sec) USB 2.0 (480 Mbit/sec)
Batteries
Lithium-Ion NB-5L battery & charger Battery Pack NB-6L
Weight
215g 233 g
Dimensions
105.8x59.3x31.9 mm 106.4 x 62.8 x 32.6 mm
Year
2010 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 PowerShot SX210 IS diagonal

The diagonal of Canon PowerShot SX210 IS image sensor is not 1/2.3 inch as you might expect, but approximately two thirds of that value. 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

Canon PowerShot SX280 HS diagonal

The diagonal of Canon PowerShot SX280 HS image sensor is not 1/2.3 inch as you might expect, but approximately two thirds of that value. 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.

Canon PowerShot SX210 IS surface area

Width = 6.16 mm
Height = 4.62 mm

Surface area = 6.16 × 4.62 = 28.46 mm²

Canon PowerShot SX280 HS surface 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

Canon PowerShot SX210 IS pixel pitch

Sensor width = 6.16 mm
Sensor resolution width = 4330 pixels
Pixel pitch =   6.16  × 1000  = 1.42 µm
4330

Canon PowerShot SX280 HS pixel pitch

Sensor width = 6.16 mm
Sensor resolution width = 4011 pixels
Pixel pitch =   6.16  × 1000  = 1.54 µm
4011


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

Canon PowerShot SX210 IS pixel area

Pixel pitch = 1.42 µm

Pixel area = 1.42² = 2.02 µm²

Canon PowerShot SX280 HS pixel area

Pixel pitch = 1.54 µm

Pixel area = 1.54² = 2.37 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

You could also use this formula:
Pixel density =   effective megapixels × 1000000  / 10000
sensor surface area in mm²

Canon PowerShot SX210 IS pixel density

Sensor resolution width = 4330 pixels
Sensor width = 0.616 cm

Pixel density = (4330 / 0.616)² / 1000000 = 49.41 MP/cm²

Canon PowerShot SX280 HS pixel density

Sensor resolution width = 4011 pixels
Sensor width = 0.616 cm

Pixel density = (4011 / 0.616)² / 1000000 = 42.4 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. 22.8 × 15.5 sensor for example has a ratio of 1.47.

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

Canon PowerShot SX210 IS sensor resolution

Sensor width = 6.16 mm
Sensor height = 4.62 mm
Effective megapixels = 14.10
r = 6.16/4.62 = 1.33
X =  14.10 × 1000000  = 3256
1.33
Resolution horizontal: X × r = 3256 × 1.33 = 4330
Resolution vertical: X = 3256

Sensor resolution = 4330 x 3256

Canon PowerShot SX280 HS sensor resolution

Sensor width = 6.16 mm
Sensor height = 4.62 mm
Effective megapixels = 12.10
r = 6.16/4.62 = 1.33
X =  12.10 × 1000000  = 3016
1.33
Resolution horizontal: X × r = 3016 × 1.33 = 4011
Resolution vertical: X = 3016

Sensor resolution = 4011 x 3016


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


Canon PowerShot SX210 IS crop factor

Sensor diagonal in mm = 7.70 mm
Crop factor =   43.27  = 5.62
7.70

Canon PowerShot SX280 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).

Canon PowerShot SX210 IS equivalent aperture

Crop factor = 5.62
Aperture = f3.1 - f5.9

35-mm equivalent aperture = (f3.1 - f5.9) × 5.62 = f17.4 - f33.2

Canon PowerShot SX280 HS equivalent aperture

Crop factor = 5.62
Aperture = f3.5 - f6.8

35-mm equivalent aperture = (f3.5 - f6.8) × 5.62 = f19.7 - f38.2


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