Field-of-View Calculator

Here you have a universal field-of-view calculator and learning tool for your photography. The two rows in the calculator let you determine and compare field of view, focal length or focusing distance for any two formats simply by typing the short and long side of each format in millimeters in the appropriate fields. Focal length always refers to the actual focal length of the lens. You may also be interested in my Depth-of-Field Calculator and Shutter Speed Calculator.

Enter Film/Sensor Size		Feet	Meters	Dudak's Field-of-View Calculator
Short Side (mm)	Long Side (mm)	Focal Length(mm)	Focus Distance	Short Field	Long Field	Subject Magnification	Diagonal Angle at inf.
enter size, focal length, focus distance		enter size, focus dist, long field		enter size, focal length, long field

	Digital SLR Dimensions
Format	Nikon APS-C	Canon APS-H	Canon APS-C	Fuji APS-C	Sony APS-C	Sigma Foveon	Pentax APS-C	Olympus 4/3
Short x Long (mm)	15.8x23.6 15.6x23.7	18.7x28.1	14.8x22.2 15x22.5	15.5x23	15.7x23.5	13.8x20.7	15.7x23.5 15.6x23.4	13x17.3

	Film Format Dimensions
Format	35	645	6x6	6x7	6x9	4x5	8x10
Short x Long (mm)	24x36	41.5x56	56x56	56x69.5	56x84	96x120	200x250

	Compact Digital Dimensions
Format	1/3.6"	1/3.2"	1/3"	1/2.7"	1/2.5"	1/2"	1/1.8"	1/1.7"	2/3"	1"
Short x Long (mm)	3x4	3.42x4.54	3.6x4.8	4.04x5.37	4.29x5.76	4.8x6.4	5.32x7.18	5.7x7.6	6.6x8.8	9.6x12.8
	from Wikipedia "Image Sensor Format" article

	Decimal/Inch Conversion for Feet Calculations
Decimal	.083	.167	.25	.333	.417	.5	.583	.667	.75	.833	.917
Inch	1	2	3	4	5	6	7	8	9	10	11

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