Ricoh CX5 vs. Canon IXUS 170
Comparison
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| Ricoh CX5 | Canon IXUS 170 | ||||
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Megapixels
10.00
20.00
Max. image resolution
3648 x 2736
5152 x 3864
Sensor
Sensor type
CMOS
CCD
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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| Ricoh CX5 | Canon IXUS 170 | |
Surface area:
| 28.46 mm² | vs | 28.46 mm² |
Difference: 0 mm² (0%)
CX5 and IXUS 170 sensors are the same size.
Note: You are comparing cameras of different generations.
There is a 4 year gap between Ricoh CX5 (2011) and Canon IXUS 170 (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 Ricoh CX5 sensor is approx. 101% bigger than a pixel on Canon IXUS 170.
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
Ricoh CX5
Canon IXUS 170
Total megapixels
10.60
20.50
Effective megapixels
10.00
20.00
Optical zoom
10.7x
12x
Digital zoom
Yes
Yes
ISO sensitivity
Auto, 80, 100, 200, 400, 800, 1600, 3200
Auto, 100-1600
RAW
Manual focus
Normal focus range
30 cm
5 cm
Macro focus range
1 cm
1 cm
Focal length (35mm equiv.)
28 - 300 mm
25 - 300 mm
Aperture priority
No
No
Max. aperture
f3.5 - f5.6
f3.6 - f7.0
Metering
Centre weighted, Multi-pattern, 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
8 sec
15 sec
Max. shutter speed
1/2000 sec
1/2000 sec
Built-in flash
External flash
Viewfinder
None
None
White balance presets
7
5
Screen size
3"
2.7"
Screen resolution
920,000 dots
230,000 dots
Video capture
Max. video resolution
1280x720 (25p)
Storage types
SDHC, Secure Digital
SD/SDHC/SDXC
USB
USB 2.0 (480 Mbit/sec)
USB 2.0 (480 Mbit/sec)
HDMI
Wireless
GPS
Battery
Lithium-Ion DB-100 rechargeable battery
Li-ion Battery NB-11L/ NB-11LH
Weight
176 g
141 g
Dimensions
102 x 58 x 29 mm
99.6 x 57.6 x 22.6 mm
Year
2011
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 |
Ricoh CX5 diagonal
The diagonal of CX5 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 IXUS 170 diagonal
The diagonal of IXUS 170 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.
CX5 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
IXUS 170 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 |
CX5 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 |
IXUS 170 pixel pitch
Sensor width = 6.16 mm
Sensor resolution width = 5158 pixels
Sensor resolution width = 5158 pixels
| Pixel pitch = | 6.16 | × 1000 | = 1.19 µm |
| 5158 |
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 |
CX5 pixel area
Pixel pitch = 1.69 µm
Pixel area = 1.69² = 2.86 µm²
Pixel area = 1.69² = 2.86 µm²
IXUS 170 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 |
CX5 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
IXUS 170 pixel density
Sensor resolution width = 5158 pixels
Sensor width = 0.616 cm
Pixel density = (5158 / 0.616)² / 1000000 = 70.11 MP/cm²
Sensor width = 0.616 cm
Pixel density = (5158 / 0.616)² / 1000000 = 70.11 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
CX5 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 |
|
Resolution vertical: X = 2742
Sensor resolution = 3647 x 2742
IXUS 170 sensor resolution
Sensor width = 6.16 mm
Sensor height = 4.62 mm
Effective megapixels = 20.00
Resolution horizontal: X × r = 3878 × 1.33 = 5158
Resolution vertical: X = 3878
Sensor resolution = 5158 x 3878
Sensor height = 4.62 mm
Effective megapixels = 20.00
| r = 6.16/4.62 = 1.33 |
|
Resolution vertical: X = 3878
Sensor resolution = 5158 x 3878
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 |
CX5 crop factor
Sensor diagonal in mm = 7.70 mm
| Crop factor = | 43.27 | = 5.62 |
| 7.70 |
IXUS 170 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).
CX5 equivalent aperture
Crop factor = 5.62
Aperture = f3.5 - f5.6
35-mm equivalent aperture = (f3.5 - f5.6) × 5.62 = f19.7 - f31.5
Aperture = f3.5 - f5.6
35-mm equivalent aperture = (f3.5 - f5.6) × 5.62 = f19.7 - f31.5
IXUS 170 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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