Tips > Focal Lengths Guide

Compare

Use this chart to compare focal lengths between cameras with different sized sensors.

All focal lengths are millimeters (mm).

Look for your camera in the chart columns according to the descriptions below.

Full-frame Cameras

Full-frame cameras have sensors that are the same size as 35mm film.

Pentax, Nikon, & Sony Cameras

If you have a Nikon, Sony, or Pentax, DSLR, the focal lengths for your camera are in the APS-C 1.5X column.

Canon Cameras

If you have a Canon DSLR, the focal lengths for your camera are in the APS-C 1.6X column.

Olympus Cameras

Many Olympus DSLR cameras use the 4/3rds format.

The focal lengths for such cameras are in 4/3 column.

Sigma Cameras

Many Sigma cameras use the Fovean chip.

The focal lengths for such cameras are in Fovean column.

Point & Shoot Cameras & Digicams

The sensors in point-and-shoot cameras and digicams vary in size.

Therefore, focal lengths are given in ranges in the P-&-S & Digicams column.

					Pentax Nikon Sony	Canon	Sigma	Olympus	P-&-S & Digicams
Lens Type	Angle of View		Full- frame	APS-H 1.3X	APS-C 1.5X	APS-C 1.6X	Fovean 1.7X	4/3 2X	Various Sizes
Ultra-wide	114°		14	None	None	None	None	7	None
Ultra-wide	108°		16	None	10.5	10	None	8	None
Ultra-wide	100°		18	14	12	10.6	None	9	None
Ultra-wide	99°		20	16	14	12.5	11.6	10	None
Wide	84°		24	18.5	16	15	14.1	12	4.4
Wide	74°		28	21.5	18	17	16.4	14	4.7-7.1
Wide	62°		35	24.5	23.5	22	20.6	17.5	5.7-8
Normal	46°		50	38	35	31.3	30	25	7-8
Short Tele.	28.5°		85	65.5	55	53	50	42.5	12.8-16.5
Short Tele.	20°		100	77	66	63	59	50	17-21.6
Short Tele.	18°		135	105	90	84.3	80	67.5	20-24
Medium Tele.	13.7°		180	138.5	120	112.5	106	90	32
Medium Tele.	12.3°		200	154	134	125	118	100	34-45
Medium Tele.	8.2°		300	230	200	188	176	150	55 -60
Long Tele.	6°		400	308	267	250	235	200	68-75
Long Tele.	5°		500	385	333	312	294	250	75-95
Long Tele.	4.2°		600	461.5	400	400	353	300	90-100+
Long Tele.	3.1°		800	612	533	533	470	400	None
Long Tele.	2.5°		1200	923	800	750	700	600	None
Long Tele.	1.5°		None	None	None	None	None	800	None

This chart was adapted from one from B&H Photo.