Canon APS-C: what each focal length frames

Every camera on this page has a 1.6x crop factor, so whatever the brand, a lens frames like its focal length times 1.6x on full frame. A 50 mm lens frames like 80 mm on full frame on all 5 of them.

To see any of these focal lengths live, Prospekt (Lens Simulator: Prospekt on the App Store) turns your iPhone into a viewfinder for your camera body: pick the body and a focal length from 14 to 300 mm, point the phone, and the screen frames what that lens would. iPhone app, $3.99 once, no subscription.

Try the free lens comparison tool

Cameras with this sensor

Canon R7 Canon RF
Canon R10 Canon RF
Canon R50 Canon RF
Canon R100 Canon RF
Canon EOS 7D II Canon EF

How the frames nest

Frames of 24, 35, 50, 85 and 135 mm lenses on this sensor, from the same spot. The outer frame is 24 mm.

Focal length table

Focal length	Full-frame equivalent	Horizontal angle	Vertical angle	Diagonal angle
14 mm	22 mm	77.6°	56.4°	88.0°
16 mm	26 mm	70.2°	50.2°	80.4°
18 mm	29 mm	64.0°	45.2°	73.8°
20 mm	32 mm	58.7°	41.1°	68.1°
24 mm	38 mm	50.2°	34.7°	58.8°
28 mm	45 mm	43.8°	30.0°	51.6°
35 mm	56 mm	35.6°	24.2°	42.2°
40 mm	64 mm	31.4°	21.2°	37.4°
50 mm	80 mm	25.4°	17.1°	30.3°
70 mm	112 mm	18.3°	12.2°	21.9°
85 mm	136 mm	15.1°	10.1°	18.1°
100 mm	160 mm	12.8°	8.6°	15.4°
135 mm	216 mm	9.5°	6.4°	11.4°
200 mm	320 mm	6.4°	4.3°	7.7°
300 mm	480 mm	4.3°	2.9°	5.2°

Classic full-frame looks

To frame like 24 mm on full frame, use 15 mm.
To frame like 35 mm on full frame, use 22 mm.
To frame like 50 mm on full frame, use 31 mm.
To frame like 85 mm on full frame, use 53 mm.
To frame like 135 mm on full frame, use 84 mm.

Common zoom ranges

A 10-18 mm zoom frames like 16-29 mm on full frame, a horizontal angle of view from 96.7° to 64.0°.
A 18-55 mm zoom frames like 29-88 mm on full frame, a horizontal angle of view from 64.0° to 23.1°.
A 18-135 mm zoom frames like 29-216 mm on full frame, a horizontal angle of view from 64.0° to 9.5°.
A 55-210 mm zoom frames like 88-336 mm on full frame, a horizontal angle of view from 23.1° to 6.1°.

What each focal length covers at a distance

Covers is the width x height of the scene with the camera held horizontally. Close up, real lenses frame a little tighter than these numbers.

Focal length	At 1 m	At 2 m	At 3 m	At 5 m	At 10 m
24 mm	0.9 × 0.6 m	1.9 × 1.2 m	2.8 × 1.9 m	4.7 × 3.1 m	9.4 × 6.2 m
35 mm	0.6 × 0.4 m	1.3 × 0.9 m	1.9 × 1.3 m	3.2 × 2.1 m	6.4 × 4.3 m
50 mm	0.5 × 0.3 m	0.9 × 0.6 m	1.4 × 0.9 m	2.2 × 1.5 m	4.5 × 3.0 m
85 mm	0.3 × 0.2 m	0.5 × 0.4 m	0.8 × 0.5 m	1.3 × 0.9 m	2.6 × 1.8 m
135 mm	0.2 × 0.1 m	0.3 × 0.2 m	0.5 × 0.3 m	0.8 × 0.6 m	1.7 × 1.1 m

How far to stand for a portrait

How far to stand from the subject with the camera held vertically, so the subject fills 90% of the frame height. Full body means a 1.8 m person, head and shoulders about 0.5 m.

35 mm: about 3.1 m (10 ft) for a full-body portrait, 0.9 m (2.8 ft) for head and shoulders.
50 mm: about 4.4 m (15 ft) for a full-body portrait, 1.2 m (4.1 ft) for head and shoulders.
85 mm: about 7.6 m (25 ft) for a full-body portrait, 2.1 m (6.9 ft) for head and shoulders.
135 mm: about 12.0 m (39 ft) for a full-body portrait, 3.3 m (11 ft) for head and shoulders.