Formats

Formats & sensor sizes

Every frame drawn to scale and centred on the 36 × 24 mm "full frame". Pick a format and the drawing zooms to fit it, from 8 × 10 inch sheet film down to a phone sensor. The formats primer explains crop factor and equivalence.

APS-C (Nikon, Sony, Fujifilm), 23.5 × 15.6 mm, against full frame. Full frame Selected Other formats

Equivalence calculator

FormatFocal length (mm)f-number

Format	Size (mm)	Crop factor	Area vs full frame	Note
Sheet film
8 × 10 inch sheet film	254 × 203	0.13×	60×	Contact-printed at the size of the negative: the view-camera format of Edward Weston and Ansel Adams.
4 × 5 inch sheet film	127 × 102	0.27×	15×	The standard of press and field cameras, from the Speed Graphic to modern view cameras.
Medium format
6 × 9 (120 film)	84 × 56	0.43×	5.4×	Folding and press cameras; eight frames on a roll of 120.
6 × 7 (120 film)	70 × 56	0.48×	4.5×	Pentax 67 and Mamiya RB67. Nicknamed the ideal format: it enlarges to 8 × 10 inch paper with almost no cropping.
6 × 6 (120 film)	56 × 56	0.55×	3.6×	The square of the Rolleiflex and the Hasselblad; twelve frames on a roll.
6 × 4.5 (120 film)	56 × 41.5	0.62×	2.7×	Fifteen frames on a roll; Mamiya 645 and Pentax 645.
Digital medium format, 53.4 × 40	53.4 × 40	0.65×	2.5×	The largest common sensor, in Phase One IQ4 backs; close to the 645 film frame.
Digital medium format, 44 × 33	43.8 × 32.9	0.79×	1.7×	Fujifilm GFX and Hasselblad X: about 1.7 times the area of full frame.
Full frame
35mm full frame	36 × 24	1.00×	100%	Barnack's double cine frame; the reference for crop factors.
Smaller sensors
APS-H (Canon EOS-1D)	28.7 × 19	1.26×	63%	Canon's fast professional bodies of 2001–2012; crop factor about 1.3.
APS-C (Nikon, Sony, Fujifilm)	23.5 × 15.6	1.53×	42%	Crop factor about 1.5.
APS-C (Canon)	22.3 × 14.9	1.61×	38%	Crop factor about 1.6.
Four Thirds / Micro Four Thirds	17.3 × 13	2.00×	26%	A 4:3 sensor with a crop factor of 2: Olympus, OM System and Panasonic.
1-inch type	13.2 × 8.8	2.73×	13%	Not an inch across: inch-type names come from the tube diameters of 1950s video cameras. Sony RX100 and many drones.
Large phone sensor (1/1.3-inch type)	9.8 × 7.4	3.52×	8%	The main camera of many recent flagship phones.
Small phone sensor (1/3-inch type)	4.8 × 3.6	7.21×	2%	Older phone cameras, and the ultra-wide or telephoto modules of today's phones.
Small film formats
126 (Instamatic)	28 × 28	1.09×	91%	Kodak's 1963 drop-in cartridge: no threading, a square frame.
35mm cine frame (silent)	24 × 18	1.44×	50%	The frame Barnack doubled for the Leica.
Half frame (35mm)	24 × 18	1.44×	50%	Two pictures in one 35mm frame, 72 on a roll; the 1959 Olympus Pen made it popular.
APS film, C print format	25.1 × 16.7	1.44×	49%	The 1996 film format that gave APS-C its name.
110 (Pocket Instamatic)	17 × 13	2.02×	26%	Kodak's 1972 pocket cartridge, almost exactly the size of Four Thirds.
Disc film	10 × 8	3.38×	9%	Kodak's 1982 disc held fifteen tiny frames; prints were grainy.