How to use it

Pick up to three cameras — or generic formats like full frame, Super 35 or Micro Four Thirds.
They are drawn to scale, one inside the other, with the width of the largest marked in millimetres.
On a computer or an iPad the table beside the chart gives each one’s size, diagonal, crop factor and what a 35mm lens frames like on it.

How crop factor works

crop factor = 43.27 mm ÷ the sensor’s diagonal
equivalent focal length = focal length × crop factor

43.27 mm is the diagonal of full frame (36 × 24 mm). A sensor with a 1.5× crop frames a 50mm lens the way full frame frames a 75mm. Crop factor here is measured on the diagonal, the usual convention; sensors with a different shape from full frame compare slightly differently on width alone.

Common sensor formats

Largest first. Crop and equivalent focal length against full frame, on the diagonal.
Format	Size	Diagonal	Crop	A 50mm frames like
Full Frame	36 × 24 mm	43.3 mm	1.00×	50mm
Super 35 (4-perf)	24.89 × 18.66 mm	31.1 mm	1.39×	70mm
APS-C	23.5 × 15.6 mm	28.2 mm	1.53×	77mm
Super 35 17:9	24.9 × 13.1 mm	28.1 mm	1.54×	77mm
Micro Four Thirds	17.3 × 13 mm	21.6 mm	2.00×	100mm
1-inch	13.2 × 8.8 mm	15.9 mm	2.73×	136mm
Super 16	12.52 × 7.41 mm	14.5 mm	2.97×	149mm
iPhone main camera	9.8 × 7.3 mm	12.2 mm	3.54×	177mm
2/3-inch broadcast (B4)	9.59 × 5.39 mm	11.0 mm	3.93×	197mm
1/2-inch (16:9)	6.97 × 3.92 mm	8.0 mm	5.41×	271mm
1/3-inch (16:9)	5.23 × 2.94 mm	6.0 mm	7.21×	361mm

Every sensor in the comparison

ARRI — Alexa 35, Alexa 65, Alexa Mini / Amira, Alexa Mini LF / LF

Blackmagic — URSA Cine 17K 65, URSA Cine 12K LF / PYXIS 12K, PYXIS 6K / Cinema Camera 6K, URSA Mini Pro 12K, URSA Mini Pro 4.6K G2, Pocket 6K Pro / 6K G2, URSA Broadcast G2, Pocket 4K, Micro Studio Camera 4K G2

Canon — C200 / C300 II / C700, C300 III / C70, C500 Mark II, C80 / C400, R5 / R5 C, R6 Mark II, 5D Mark III

DJI — Osmo Action 5 Pro, Osmo Action 6, Osmo Pocket 3, Ronin 4D (X9), Mavic Pro / 2 Zoom (1/2.3"), Mavic 2 Pro (1-inch), Mavic 3 / 3 Pro Wide (4/3), Mavic 3 / 3 Pro Tele (1/2"), Mavic 3 Pro / 4 Pro Med Tele, Mavic 4 Pro Wide (4/3), Mavic 4 Pro Tele (1/1.5")

GoPro — Hero 10, Hero 11 / 12 / 13, Mission 1 / Pro

Grass Valley — LDX 100 Series, LDX 86 Series

Ikegami — UHK-X750 / X700

Panasonic — AK-UC4000 / UC3000 / UCX100 (B4), VariCam 35 / LT, AK-PLV100, S5 II / S5 IIX

RED — Helium 8K S35, Komodo / Komodo-X, Monstro 8K VV, V-Raptor / XL 8K VV, V-Raptor / XL 8K S35

Sony — A1, A7 IV, Burano, FX3 / A7S III, FX30, FX6, FX9, HDC-5500 / 3500 / P50A, Venice / Venice 2, HDC-F5500

Questions

What is Super 35?

The 35mm motion-picture frame, about 24.9 mm wide. Digital cinema cameras call slightly different sizes Super 35, which is why the comparison lists each body by name as well as the generic format.

Is crop factor measured on width or diagonal?

This comparison uses the diagonal, against full frame’s 43.27 mm. Measured on width alone, a wide sensor such as Super 35 17:9 comes out a little different.

Does a smaller sensor give more depth of field?

At the same framing, yes: you use a wider lens or stand farther back, and both deepen the focus. The depth of field calculator shows it for full frame, Super 35 and 2/3″ broadcast.