Sigma fp


Brand: Sigma
Model: fp
Megapixels: 24.60
Sensor: 35.9 x 23.9 mm
Price: check here »

Sensor info

Sigma fp comes with a 35.9 x 23.9 mm CMOS sensor, which has a diagonal of 43.13 mm (1.7") and a surface area of 858.01 mm².
43.13 mm
Surface area
858 mm²
Pixel pitch
5.91 µm
Pixel area
34.93 µm²
Pixel density
2.86 MP/cm²

Actual sensor size

Note: Actual size is set to screen → change »
This is the actual size of the fp sensor: 35.9 x 23.9 mm
The sensor has a surface area of 858 mm². There are approx. 24,600,000 photosites (pixels) on this area. Pixel pitch, which is a measure of the distance between pixels, is 5.91 µm. Pixel pitch tells you the distance from the center of one pixel (photosite) to the center of the next.

Pixel or photosite area is 34.93 µm². The larger the photosite, the more light it can capture and the more information can be recorded.

Pixel density tells you how many million pixels fit or would fit in one square cm of the sensor. Sigma fp has a pixel density of 2.86 MP/cm².



Brand: Sigma
Model: fp
Effective megapixels: 24.60
Total megapixels: 25.30
Sensor size: 35.9 x 23.9 mm
Sensor type: CMOS
Sensor resolution: 6075 x 4050
Max. image resolution: 6000 x 4000
Crop factor: 1
Optical zoom:  
Digital zoom:
ISO: Auto, 100-25600 (expandable to 6-102400)
RAW support:
Manual focus:
Normal focus range:
Macro focus range:
Focal length (35mm equiv.):
Aperture priority: Yes
Max aperture:
Max. aperture (35mm equiv.): n/a
Metering: Multi, Center-weighted, Spot
Exposure Compensation: ±5 EV (in 1/3 EV steps)
Shutter priority: Yes
Min. shutter speed: 30 sec
Max. shutter speed: 1/8000 sec
Built-in flash:
External flash:
Viewfinder: None
White balance presets: 6
Screen size: 3.2"
Screen resolution: 2,100,000 dots
Video capture:
Max. video resolution: 3840x2160 (30p/​25p/​24p)
Storage types: SD/SDHC/SDXC
USB: USB 3.0 (5 GBit/sec)
Battery: BP-51 lithium-ion battery
Weight: 422 g
Dimensions: 112.6 x 69.9 x 45.3 mm
Year: 2019

Compare fp with another camera



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

Sigma fp diagonal:

w = 35.90 mm
h = 23.90 mm
Diagonal =  35.90² + 23.90²   = 43.13 mm

Surface area


Width = 35.90 mm
Height = 23.90 mm

Surface area = 35.90 × 23.90 = 858.01 mm²

Pixel pitch

Pixel pitch =   sensor width in mm  × 1000
sensor resolution width in pixels

Sigma fp pixel pitch:

Sensor width = 35.90 mm
Sensor resolution width = 6075 pixels
Pixel pitch =   35.90  × 1000  = 5.91 µm

Pixel area

Pixel area = pixel pitch²

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

Sigma fp pixel area:

Pixel pitch = 5.91 µm

Pixel area = 5.91² = 34.93 µm²

Pixel density

Pixel density can be calculated with the following formula:
sensor width in cm

You could also use this formula:
Pixel density =   effective megapixels × 1000000  / 10000
sensor surface area in mm²

Sigma fp pixel density:

Sensor resolution width = 6075 pixels
Sensor width = 3.59 cm

Pixel density = (6075 / 3.59)² / 1000000 = 2.86 MP/cm²

Sensor resolution



X =  effective megapixels × 1000000

Resolution horizontal: X × r
Resolution vertical: X

Sigma fp sensor resolution:

Sensor width = 35.90 mm
Sensor height = 23.90 mm
Effective megapixels = 24.60
r = 35.90/23.90 = 1.5
X =  24.60 × 1000000  = 4050
Resolution horizontal: X × r = 4050 × 1.5 = 6075
Resolution vertical: X = 4050

Sensor resolution = 6075 x 4050

Crop factor

Crop factor =   43.27 mm
sensor diagonal in mm

Sigma fp crop factor:

Sensor diagonal = 43.13 mm
Crop factor =   43.27  = 1

35 mm equivalent aperture


Sigma fp equivalent aperture:

Aperture is a lens characteristic, so it's calculated only for fixed lens cameras. If you want to know the equivalent aperture for Sigma fp, take the aperture of the lens you're using and multiply it with crop factor.

Since crop factor for Sigma fp is 1, the equivalent aperture is aperture.

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