Canon PowerShot SX400 IS vs. Samsung WB350F

Comparison

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PowerShot SX400 IS image
vs
WB350F image
Canon PowerShot SX400 IS Samsung WB350F
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Megapixels
16.00
16.30
Max. image resolution
4608 x 3456
4608 x 3456

Sensor

Sensor type
CCD
CMOS
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
4656 x 3501
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 PowerShot SX400 IS Samsung WB350F
Surface area:
28.46 mm² vs 28.46 mm²
Difference: 0 mm² (0%)
SX400 IS and WB350F sensors are the same size.
Pixel pitch
1.34 µm
1.32 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: 0.02 µm (2%)
Pixel pitch of SX400 IS is approx. 2% higher than pixel pitch of WB350F.
Pixel area
1.8 µm²
1.74 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: 0.06 µm² (3%)
A pixel on Canon SX400 IS sensor is approx. 3% bigger than a pixel on Samsung WB350F.
Pixel density
56.06 MP/cm²
57.13 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: 1.07 µm (2%)
Samsung WB350F has approx. 2% higher pixel density than Canon SX400 IS.
To learn about the accuracy of these numbers, click here.

Specs

Canon SX400 IS
Samsung WB350F
Crop factor
5.62
5.62
Total megapixels
16.60
16.70
Effective megapixels
16.00
16.30
Optical zoom
30x
21x
Digital zoom
Yes
Yes
ISO sensitivity
Auto, 100-1600
Auto, 80, 100, 200, 400, 800, 1600, 3200
RAW
Manual focus
Normal focus range
5 cm
80 cm
Macro focus range
10 cm
Focal length (35mm equiv.)
24 - 720 mm
23 - 483 mm
Aperture priority
No
Yes
Max. aperture
f3.4 - f5.8
f2.8 - f5.9
Max. aperture (35mm equiv.)
f19.1 - f32.6
f15.7 - f33.2
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
Yes
Min. shutter speed
15 sec
16 sec
Max. shutter speed
1/1600 sec
1/2000 sec
Built-in flash
External flash
Viewfinder
None
None
White balance presets
5
5
Screen size
3"
3"
Screen resolution
230,000 dots
460,000 dots
Video capture
Max. video resolution
1280x720 (25p)
1920x1080 (30p)
Storage types
SD/SDHC/SDXC
MicroSD, MicroSDHC, MicroSDXC
USB
USB 2.0 (480 Mbit/sec)
USB 2.0 (480 Mbit/sec)
HDMI
Wireless
GPS
Battery
Battery Pack NB-11LH
SLB-10A
Weight
313 g
276 g
Dimensions
104.4 x 69.1 x 80.1 mm
113.5 x 65 x 24.9 mm
Year
2014
2014



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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 SX400 IS diagonal

The diagonal of SX400 IS 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

Samsung WB350F diagonal

The diagonal of WB350F 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.

SX400 IS sensor area

Width = 6.16 mm
Height = 4.62 mm

Surface area = 6.16 × 4.62 = 28.46 mm²

WB350F 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

SX400 IS pixel pitch

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

WB350F pixel pitch

Sensor width = 6.16 mm
Sensor resolution width = 4656 pixels
Pixel pitch =   6.16  × 1000  = 1.32 µm
4656


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

SX400 IS pixel area

Pixel pitch = 1.34 µm

Pixel area = 1.34² = 1.8 µm²

WB350F pixel area

Pixel pitch = 1.32 µm

Pixel area = 1.32² = 1.74 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

SX400 IS pixel density

Sensor resolution width = 4612 pixels
Sensor width = 0.616 cm

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

WB350F pixel density

Sensor resolution width = 4656 pixels
Sensor width = 0.616 cm

Pixel density = (4656 / 0.616)² / 1000000 = 57.13 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

SX400 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

WB350F sensor resolution

Sensor width = 6.16 mm
Sensor height = 4.62 mm
Effective megapixels = 16.30
r = 6.16/4.62 = 1.33
X =  16.30 × 1000000  = 3501
1.33
Resolution horizontal: X × r = 3501 × 1.33 = 4656
Resolution vertical: X = 3501

Sensor resolution = 4656 x 3501


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


SX400 IS crop factor

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

WB350F 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).

SX400 IS equivalent aperture

Crop factor = 5.62
Aperture = f3.4 - f5.8

35-mm equivalent aperture = (f3.4 - f5.8) × 5.62 = f19.1 - f32.6

WB350F equivalent aperture

Crop factor = 5.62
Aperture = f2.8 - f5.9

35-mm equivalent aperture = (f2.8 - f5.9) × 5.62 = f15.7 - f33.2

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