Sony Cyber-shot DSC-HX300 vs Canon PowerShot SX50 HS Comparison

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Cyber-shot DSC-HX300 image
vs
PowerShot SX50 HS image
Sony Cyber-shot DSC-HX300 Canon PowerShot SX50 HS
Megapixels
20.40
12.10
Image resolution
5184 x 3888
4000 x 3000

Sensor

Sensor type
CMOS
CMOS
Sensor size
1/2.3" (approx. 6.16 x 4.62 mm)
1/2.3" (approx. 6.16 x 4.62 mm)
Sensor resolution
5208 x 3916
4011 x 3016
Diagonal
7.70 mm
7.70 mm
Compare sensor size:

Sensor Size

Actual size is set to screen
vs
1:1
(ratio)
Sony Cyber-shot DSC-HX300 Canon PowerShot SX50 HS
Surface area:
28.46 mm² vs 28.46 mm²
Difference: 0 mm² (0%)
HX300 and SX50 HS sensors are the same size.
Pixel pitch
1.18 µm
1.54 µm
Difference: 0.36 µm (31%)
Pixel pitch of SX50 HS is ~31% higher than HX300's.
Pixel area
1.39 µm²
2.37 µm²
Relative pixel sizes:
vs
Pixel area difference: 0.98 µm² (71%)
Pixel on Canon SX50 HS sensor is ~71% bigger than Sony HX300's.
Pixel density
71.48 MP/cm²
42.4 MP/cm²
Difference: 29.08 µm (69%)
Sony HX300 has ~69% higher pixel density than Canon SX50 HS's.

Specs

Sony HX300
Canon SX50 HS
Crop factor
5.62
5.62
Megapixels
21.10
12.80
Optical zoom
50x
50x
Digital zoom
ISO range
Auto, 80, 100, 200, 400, 800, 1600, 3200 (6400, 12800)
Auto, 80 - 6400
RAW support
Manual focus
Focus range
n/a
5 cm
Macro focus range
1 cm
Focal length
24 - 1200 mm
24 - 1200 mm
Aperture priority
Max. aperture
f2.8 - f6.3
f3.4 - f6.5
Metering types
Multi, Center-weighted, Spot
Multi, Center-weighted, Spot
Exposure compensation
±2 EV (in 1/3 EV steps)
±3 EV (in 1/3 EV steps)
Shutter priority
Shutter speed (min)
30s
15s
Shutter speed (max)
1/4000s
1/2000s
Built-in flash
External flash
n/a
Viewfinder type
Electronic
Electronic
White balance
7
7
Screen size
3"
2.8"
Screen resolution
921,600 dots
461,000 dots
Video available
Max. video resolution
1920x1080 (60p/60i)
1920x1080 (24p)
Storage type
SD/SDHC/SDXC, Memory Stick Duo/Pro Duo/Pro-HG Duo/XC-HG Duo
SD/SDHC/SDXC
USB Version
2.0 (480 Mbit/sec)
2.0 (480 Mbit/sec)
HDMI
Wireless support
GPS
Battery
Rechargeable Battery Pack NP-BX1
Lithium-Ion NB-10L rechargeable battery
Weight
650g
595g
Body size
129.6 x 93.2 x 103.2 mm
122.5 x 87.3 x 105.5 mm
Released
2013
2012


Compare various cameras

vs

Diagonal

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

Sony HX300 diagonal

The diagonal of HX300 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 SX50 HS diagonal

The diagonal of SX50 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.

HX300 sensor area

Width = 6.16 mm
Height = 4.62 mm

Surface area = 6.16 × 4.62 = 28.46 mm²

SX50 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

HX300 pixel pitch

Sensor width = 6.16 mm
Sensor resolution width = 5208 pixels
Pixel pitch =   6.16  × 1000  = 1.18 µm
5208

SX50 HS pixel pitch

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


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

HX300 pixel area

Pixel pitch = 1.18 µm

Pixel area = 1.18² = 1.39 µm²

SX50 HS pixel area

Pixel pitch = 1.54 µm

Pixel area = 1.54² = 2.37 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

HX300 pixel density

Sensor resolution width = 5208 pixels
Sensor width = 0.616 cm

Pixel density = (5208 / 0.616)² / 1000000 = 71.48 MP/cm²

SX50 HS pixel density

Sensor resolution width = 4011 pixels
Sensor width = 0.616 cm

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

HX300 sensor resolution

Sensor width = 6.16 mm
Sensor height = 4.62 mm
Effective megapixels = 20.40
r = 6.16/4.62 = 1.33
X =  20.40 × 1000000  = 3916
1.33
Resolution horizontal: X × r = 3916 × 1.33 = 5208
Resolution vertical: X = 3916

Sensor resolution = 5208 x 3916

SX50 HS 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


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


HX300 crop factor

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

SX50 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).

HX300 equivalent aperture

Crop factor = 5.62
Aperture = f2.8 - f6.3

35-mm equivalent aperture = (f2.8 - f6.3) × 5.62 = f15.7 - f35.4

SX50 HS equivalent aperture

Crop factor = 5.62
Aperture = f3.4 - f6.5

35-mm equivalent aperture = (f3.4 - f6.5) × 5.62 = f19.1 - f36.5

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