Canon PowerShot SD300 vs. Canon PowerShot S230 DIGITAL ELPH

Comparison

change cameras »
PowerShot SD300 image
vs
PowerShot S230 DIGITAL ELPH image
Canon PowerShot SD300 Canon PowerShot S230 DIGITAL ELPH
check price » check price »
Megapixels
3.90
3.20
Max. image resolution
2272 x 1704
2048 x 1536

Sensor

Sensor type
CCD
CCD
Sensor size
1/2.5" (~ 5.75 x 4.32 mm)
1/2.7" (~ 5.33 x 4 mm)
Sensor resolution
2277 x 1712
2063 x 1551
Diagonal
7.19 mm
6.66 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
1.17 : 1
(ratio)
Canon PowerShot SD300 Canon PowerShot S230 DIGITAL ELPH
Surface area:
24.84 mm² vs 21.32 mm²
Difference: 3.52 mm² (17%)
SD300 sensor is approx. 1.17x bigger than S230 DIGITAL ELPH sensor.
Note: You are comparing cameras of different generations. There is a 2 year gap between Canon SD300 (2004) and Canon S230 DIGITAL ELPH (2002). All things being equal, newer sensor generations generally outperform the older.
Pixel pitch
2.53 µm
2.58 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: 0.05 µm (2%)
Pixel pitch of S230 DIGITAL ELPH is approx. 2% higher than pixel pitch of SD300.
Pixel area
6.4 µm²
6.66 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: 0.26 µm² (4%)
A pixel on Canon S230 DIGITAL ELPH sensor is approx. 4% bigger than a pixel on Canon SD300.
Pixel density
15.68 MP/cm²
14.98 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: 0.7 µm (5%)
Canon SD300 has approx. 5% higher pixel density than Canon S230 DIGITAL ELPH.
To learn about the accuracy of these numbers, click here.



Specs

Canon SD300
Canon S230 DIGITAL ELPH
Crop factor
6.02
6.5
Total megapixels
4.10
3.30
Effective megapixels
3.90
3.20
Optical zoom
3x
2x
Digital zoom
Yes
Yes
ISO sensitivity
Auto, 50, 100, 200, 400
Auto, 50, 100, 200, 400
RAW
Manual focus
Normal focus range
50 cm
47 cm
Macro focus range
3 cm
10 cm
Focal length (35mm equiv.)
35 - 105 mm
35 - 70 mm
Aperture priority
No
No
Max. aperture
f2.8 - f4.9
f2.8 - f4.0
Max. aperture (35mm equiv.)
f16.9 - f29.5
f18.2 - f26
Metering
Multi, Center-weighted, 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
1/1500 sec
1/1500 sec
Built-in flash
External flash
Viewfinder
Optical (tunnel)
Optical (tunnel)
White balance presets
5
6
Screen size
2"
1.5"
Screen resolution
118,000 dots
120,000 dots
Video capture
Max. video resolution
Storage types
SD card
Compact Flash (Type I)
USB
USB 1.0
USB 1.0
HDMI
Wireless
GPS
Battery
Lithium-Ion NB-4L battery
Canon Lithium-Ion
Weight
147 g
250 g
Dimensions
86 x 54 x 21 mm
87 x 57 x 27 mm
Year
2004
2002




Choose cameras to compare

vs

Diagonal

Diagonal is calculated by the use of Pythagorean theorem:
Diagonal =  w² + h²
where w = sensor width and h = sensor height

Canon SD300 diagonal

The diagonal of SD300 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

Canon S230 DIGITAL ELPH diagonal

The diagonal of S230 DIGITAL ELPH sensor is not 1/2.7 or 0.37" (9.4 mm) as you might expect, but approximately two thirds of that value - 6.66 mm. If you want to know why, see sensor sizes.

w = 5.33 mm
h = 4.00 mm
Diagonal =  5.33² + 4.00²   = 6.66 mm


Surface area

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

SD300 sensor area

Width = 5.75 mm
Height = 4.32 mm

Surface area = 5.75 × 4.32 = 24.84 mm²

S230 DIGITAL ELPH sensor area

Width = 5.33 mm
Height = 4.00 mm

Surface area = 5.33 × 4.00 = 21.32 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

SD300 pixel pitch

Sensor width = 5.75 mm
Sensor resolution width = 2277 pixels
Pixel pitch =   5.75  × 1000  = 2.53 µm
2277

S230 DIGITAL ELPH pixel pitch

Sensor width = 5.33 mm
Sensor resolution width = 2063 pixels
Pixel pitch =   5.33  × 1000  = 2.58 µm
2063


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

SD300 pixel area

Pixel pitch = 2.53 µm

Pixel area = 2.53² = 6.4 µm²

S230 DIGITAL ELPH pixel area

Pixel pitch = 2.58 µm

Pixel area = 2.58² = 6.66 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

SD300 pixel density

Sensor resolution width = 2277 pixels
Sensor width = 0.575 cm

Pixel density = (2277 / 0.575)² / 1000000 = 15.68 MP/cm²

S230 DIGITAL ELPH pixel density

Sensor resolution width = 2063 pixels
Sensor width = 0.533 cm

Pixel density = (2063 / 0.533)² / 1000000 = 14.98 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

SD300 sensor resolution

Sensor width = 5.75 mm
Sensor height = 4.32 mm
Effective megapixels = 3.90
r = 5.75/4.32 = 1.33
X =  3.90 × 1000000  = 1712
1.33
Resolution horizontal: X × r = 1712 × 1.33 = 2277
Resolution vertical: X = 1712

Sensor resolution = 2277 x 1712

S230 DIGITAL ELPH sensor resolution

Sensor width = 5.33 mm
Sensor height = 4.00 mm
Effective megapixels = 3.20
r = 5.33/4.00 = 1.33
X =  3.20 × 1000000  = 1551
1.33
Resolution horizontal: X × r = 1551 × 1.33 = 2063
Resolution vertical: X = 1551

Sensor resolution = 2063 x 1551


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


SD300 crop factor

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

S230 DIGITAL ELPH crop factor

Sensor diagonal in mm = 6.66 mm
Crop factor =   43.27  = 6.5
6.66

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).

SD300 equivalent aperture

Crop factor = 6.02
Aperture = f2.8 - f4.9

35-mm equivalent aperture = (f2.8 - f4.9) × 6.02 = f16.9 - f29.5

S230 DIGITAL ELPH equivalent aperture

Crop factor = 6.5
Aperture = f2.8 - f4.0

35-mm equivalent aperture = (f2.8 - f4.0) × 6.5 = f18.2 - f26

Enter your screen size (diagonal)

My screen size is  inches



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.