Canon PowerShot A4000 IS vs. Canon PowerShot SX160 IS

Comparison

PowerShot A4000 IS image
vs.
PowerShot SX160 IS image

Comparison

Canon PowerShot A4000 IS Canon PowerShot SX160 IS
Megapixels
16.00 16.00
Max. resolution
4608 x 3456 4608 x 3456
Price
Amazon, B&H Photo, Adorama Amazon, B&H Photo, Adorama

Sensor

Sensor type
CCD CCD
Sensor size
1/2.3" (~ 6.16 x 4.62 mm) 1/2.3" (~ 6.16 x 4.62 mm)
Sensor resolution
4612 x 3468  4612 x 3468 
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 A4000 IS
vs.
Canon PowerShot SX160 IS
 
Surface area:
Canon PowerShot A4000 IS
Canon PowerShot SX160 IS
Difference: 0 mm² (0%)
Canon PowerShot A4000 IS and Canon PowerShot SX160 IS have the same surface area.
Pixel pitch
1.34 µm  1.34 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 A4000 IS
Canon PowerShot SX160 IS
Difference: 0 µm (0%)
Canon PowerShot A4000 IS and Canon PowerShot SX160 IS have the same pixel pitch.
Pixel area
1.8 µm²  1.8 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 A4000 IS
vs.
Canon PowerShot SX160 IS
Pixel area difference: 0 µm² (0%)
Canon PowerShot A4000 IS and Canon PowerShot SX160 IS have the same pixel area.
Pixel density
56.06 MP/cm²  56.06 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 A4000 IS
Canon PowerShot SX160 IS
Difference: 0 MP/cm² (0%)
Canon PowerShot A4000 IS and Canon PowerShot SX160 IS have the same pixel density.
To learn about the accuracy of these numbers, click here.

Other specifications

Crop factor
5.62  5.62 
Total megapixels
n/a 16.60
Effective megapixels
16.00 16.00
Optical zoom
8x 16x
Digital zoom
Yes Yes
Iso
Auto, 100, 200, 400, 800, 1600 Auto, 80 ,100, 200, 400, 800, 1600
Auto focus
Yes Yes
Manual focus
No Yes
Normal focus range
40 cm n/a
Macro focus range
1 cm n/a
Focal length (35mm equiv.)
28 - 224 mm 28 - 448 mm
Aperture priority
No Yes
Aperture
f3.0 - f5.9 f3.5 - f5.9
Aperture (35mm equiv.)
f16.9 - f33.2  f19.7 - f33.2 
Metering
Centre weighted, Evaluative, Spot Multi, Center-weighted, Spot
Exposure compensation
-2EV - +2EV with 1/3EV steps ±2 EV (at 1/3 EV steps)
Shutter priority
No Yes
Min. shutter speed
15 sec 15 sec
Max. shutter speed
1/2000 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 No
Viewfinder
None None
White balance presets
6 5
LCD display
Yes Yes
LCD size
3" 3"
LCD resolution
230,000 230,000
Min. image resolution
320 x 240 640 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-11L rechargeable battery & charger 2 x AA batteries
Weight
145g 291 g
Dimensions
95.3x56.3x24.3 mm 111 x 73 x 44 mm
Year
2012 2012



Compare other cameras

Popular comparisons:

Choose other cameras to compare:



comments powered by Disqus

Diagonal

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

Canon PowerShot A4000 IS diagonal

The diagonal of Canon PowerShot A4000 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 SX160 IS diagonal

The diagonal of Canon PowerShot SX160 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


Surface area

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

Canon PowerShot A4000 IS surface area

Width = 6.16 mm
Height = 4.62 mm

Surface area = 6.16 × 4.62 = 28.46 mm²

Canon PowerShot SX160 IS 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 A4000 IS pixel pitch

Sensor width = 6.16 mm
Sensor resolution width = 4612 pixels
Pixel pitch =   6.16  × 1000  = 1.34 µm
4612

Canon PowerShot SX160 IS pixel pitch

Sensor width = 6.16 mm
Sensor resolution width = 4612 pixels
Pixel pitch =   6.16  × 1000  = 1.34 µm
4612


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 A4000 IS pixel area

Pixel pitch = 1.34 µm

Pixel area = 1.34² = 1.8 µm²

Canon PowerShot SX160 IS pixel area

Pixel pitch = 1.34 µm

Pixel area = 1.34² = 1.8 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 A4000 IS pixel density

Sensor resolution width = 4612 pixels
Sensor width = 0.616 cm

Pixel density = (4612 / 0.616)² / 1000000 = 56.06 MP/cm²

Canon PowerShot SX160 IS pixel density

Sensor resolution width = 4612 pixels
Sensor width = 0.616 cm

Pixel density = (4612 / 0.616)² / 1000000 = 56.06 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 A4000 IS sensor resolution

Sensor width = 6.16 mm
Sensor height = 4.62 mm
Effective megapixels = 16.00
r = 6.16/4.62 = 1.33
X =  16.00 × 1000000  = 3468
1.33
Resolution horizontal: X × r = 3468 × 1.33 = 4612
Resolution vertical: X = 3468

Sensor resolution = 4612 x 3468

Canon PowerShot SX160 IS sensor resolution

Sensor width = 6.16 mm
Sensor height = 4.62 mm
Effective megapixels = 16.00
r = 6.16/4.62 = 1.33
X =  16.00 × 1000000  = 3468
1.33
Resolution horizontal: X × r = 3468 × 1.33 = 4612
Resolution vertical: X = 3468

Sensor resolution = 4612 x 3468


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 A4000 IS crop factor

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

Canon PowerShot SX160 IS 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 A4000 IS equivalent aperture

Crop factor = 5.62
Aperture = f3.0 - f5.9

35-mm equivalent aperture = (f3.0 - f5.9) × 5.62 = f16.9 - f33.2

Canon PowerShot SX160 IS equivalent aperture

Crop factor = 5.62
Aperture = f3.5 - f5.9

35-mm equivalent aperture = (f3.5 - f5.9) × 5.62 = f19.7 - f33.2


All trademarks and product names are property of their respective owners. User comments are not the responsibility of digicamdb.com.