Canon IXY 51S vs. Canon PowerShot ELPH 360 HS

Comparison

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IXY 51S image
vs
PowerShot ELPH 360 HS image
Canon IXY 51S Canon PowerShot ELPH 360 HS
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Megapixels
12.10
20.20
Max. image resolution
4000 x 3000
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 resolution
4011 x 3016
5183 x 3897
Diagonal
7.70 mm
7.70 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 : 1
(ratio)
Canon IXY 51S Canon PowerShot ELPH 360 HS
Surface area:
28.46 mm² vs 28.46 mm²
Difference: 0 mm² (0%)
IXY 51S and ELPH 360 HS sensors are the same size.
Note: You are comparing cameras of different generations. There is a 5 year gap between Canon IXY 51S (2011) and Canon ELPH 360 HS (2016). All things being equal, newer sensor generations generally outperform the older.
Pixel pitch
1.54 µm
1.19 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: 0.35 µm (29%)
Pixel pitch of IXY 51S is approx. 29% higher than pixel pitch of ELPH 360 HS.
Pixel area
2.37 µm²
1.42 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: 0.95 µm² (67%)
A pixel on Canon IXY 51S sensor is approx. 67% bigger than a pixel on Canon ELPH 360 HS.
Pixel density
42.4 MP/cm²
70.79 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: 28.39 µm (67%)
Canon ELPH 360 HS has approx. 67% higher pixel density than Canon IXY 51S.
To learn about the accuracy of these numbers, click here.



Specs

Canon IXY 51S
Canon ELPH 360 HS
Crop factor
5.62
5.62
Total megapixels
21.10
Effective megapixels
12.10
20.20
Optical zoom
12x
12x
Digital zoom
Yes
Yes
ISO sensitivity
Auto, 100 - 3200
Auto, 80-3200
RAW
Manual focus
Normal focus range
5 cm
Macro focus range
1 cm
1 cm
Focal length (35mm equiv.)
28 - 336 mm
25 - 300 mm
Aperture priority
No
No
Max. aperture
f3.4 - f5.9
f3.6 - f7
Max. aperture (35mm equiv.)
f19.1 - f33.2
f20.2 - f39.3
Metering
Centre weighted, Matrix, 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
1/1400 sec
1/2000 sec
Built-in flash
External flash
Viewfinder
None
None
White balance presets
5
5
Screen size
3.2"
3"
Screen resolution
461,000 dots
460,800 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
NB-11LH lithium-ion battery
Weight
206 g
147 g
Dimensions
99 x 59 x 22 mm
99.6 x 58 x 22.8 mm
Year
2011
2016




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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 IXY 51S diagonal

The diagonal of IXY 51S 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
Diagonal =  6.16² + 4.62²   = 7.70 mm

Canon ELPH 360 HS diagonal

The diagonal of ELPH 360 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
Diagonal =  6.16² + 4.62²   = 7.70 mm


Surface area

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

IXY 51S sensor area

Width = 6.16 mm
Height = 4.62 mm

Surface area = 6.16 × 4.62 = 28.46 mm²

ELPH 360 HS sensor 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

IXY 51S pixel pitch

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

ELPH 360 HS pixel pitch

Sensor width = 6.16 mm
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:
Pixel area = pixel pitch²

You could also divide sensor surface area with effective megapixels:
Pixel area =   sensor surface area in mm²
effective megapixels

IXY 51S pixel area

Pixel pitch = 1.54 µm

Pixel area = 1.54² = 2.37 µm²

ELPH 360 HS pixel area

Pixel pitch = 1.19 µm

Pixel area = 1.19² = 1.42 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

IXY 51S pixel density

Sensor resolution width = 4011 pixels
Sensor width = 0.616 cm

Pixel density = (4011 / 0.616)² / 1000000 = 42.4 MP/cm²

ELPH 360 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 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

IXY 51S 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

ELPH 360 HS sensor resolution

Sensor width = 6.16 mm
Sensor height = 4.62 mm
Effective megapixels = 20.20
r = 6.16/4.62 = 1.33
X =  20.20 × 1000000  = 3897
1.33
Resolution horizontal: X × r = 3897 × 1.33 = 5183
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


IXY 51S crop factor

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

ELPH 360 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).

IXY 51S equivalent aperture

Crop factor = 5.62
Aperture = f3.4 - f5.9

35-mm equivalent aperture = (f3.4 - f5.9) × 5.62 = f19.1 - f33.2

ELPH 360 HS equivalent aperture

Crop factor = 5.62
Aperture = f3.6 - f7

35-mm equivalent aperture = (f3.6 - f7) × 5.62 = f20.2 - f39.3

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