Specifications#
Equivalent focal length on different cameras#
Field of view and depth-of-field equivalence when this lens is used on bodies with different sensor sizes (natively or via an adapter).
| Camera format | At 28 mm | At 50 mm | At 90 mm | Equiv. aperture (DoF) |
|---|---|---|---|---|
| Full frame | 28 mm · 75° | 50 mm · 47° | 90 mm · 27° | f/4.0 |
| APS-C | 42 mm · 53° | 75 mm · 32° | 135 mm · 18° | f/6.0 |
| APS-C (Canon) | 45 mm · 51° | 80 mm · 30° | 144 mm · 17° | f/6.4 |
| Micro Four Thirds | 56 mm · 42° | 100 mm · 24° | 180 mm · 14° | f/8.0 |
Depth of field & background blur#
Computed on its native Full frame format (CoC 30 µm). “Blur @2 m” is the size of an out-of-focus point at infinity, as a percentage of frame width, with the subject at 2 m — a simple bokeh index. Full table: 28 mm f/4 on full frame.
| Focal | Aperture | at 1 m | at 2 m | at 5 m | at 10 m | Hyperfocal | Blur @2 m |
|---|---|---|---|---|---|---|---|
| 28 mm | f/4 | 30.4 cm | 1.33 m | 18.1 m | ∞ | 6.56 m | 0.3% |
| 28 mm | f/8 | 65.3 cm | 3.80 m | ∞ | ∞ | 3.29 m | 0.1% |
| 50 mm | f/4 | 9.1 cm | 37.8 cm | 2.52 m | 12.4 m | 20.9 m | 0.9% |
| 50 mm | f/8 | 18.4 cm | 77.6 cm | 6.14 m | 218 m | 10.5 m | 0.4% |
| 90 mm | f/4 | 2.7 cm | 11.3 cm | 73.1 cm | 3.00 m | 67.6 m | 2.9% |
| 90 mm | f/8 | 5.4 cm | 22.7 cm | 1.49 m | 6.43 m | 33.8 m | 1.5% |
Handheld & night-sky limits#
NPF assumes typical 20–24 MP sensors (≈6 µm pixels on full frame, ≈3.9 µm on APS-C, ≈3.3 µm on Micro Four Thirds).
| Body | Min. handheld shutter (longest focal) | 500 rule at 28 mm | NPF at 28 mm, f/4 |
|---|---|---|---|
| Full frame | 1/100 s | 18 s | 11 s |
| APS-C | 1/125 s | 12 s | 9 s |
| APS-C (Canon) | 1/160 s | 11 s | 9 s |
| Micro Four Thirds | 1/200 s | 9 s | 9 s |
Compatible cameras#
Bodies in our database with a native Canon EF mount.
- Canon EOS-1D X Mark III 2020
- Canon EOS 6D Mark II 2017
- Canon EOS 5D Mark IV 2016
- Canon EOS-1D X Mark II 2016
- Canon EOS 5DS 2015
- Canon EOS 5DS R 2015
- Blackmagic Design Pocket Cinema Camera 2013
- Canon EOS 5D Mark III 2012
- Canon EOS 6D 2012
- Canon EOS-1D X 2012
- Canon EOS-1D C 2012
- Canon EOS-1D Mark IV 2009
- Canon EOS 5D Mark II 2008
- Canon EOS-1Ds Mark III 2007
- Canon EOS-1D Mark III 2007
- Canon EOS 5D 2005
- Canon EOS-1Ds Mark II 2004
- Kodak DCS Pro SLR/c 2004
- Canon EOS-1D Mark II 2004
- Canon EOS 30V 2004
- Canon EOS-1Ds 2002
- Canon EOS 3000N 2002
- Canon EOS 300V 2002
- Canon EOS-1D 2001
- Canon EOS-1V 2000
- Canon EOS 30 2000
- Canon EOS D2000 1998
- Canon EOS-3 1998
- Canon EOS 500N 1996
- Canon EOS IX 1996
- Canon EOS 50 1995
- Canon EOS-1N 1994
- Canon EOS 500 1993
- Canon EOS 5 1992
- Canon EF-M camera 1991
- Canon EOS 100 1991
- Canon EOS 1000 1990
- Canon EOS-1 1989
- Canon EOS 650 1987
- Canon EOS C300
Adapt it to other systems#
Similar lenses#
- Canon EF 28-105mm f/3.5-4.5 II USM f/3.5–4.5
- Canon EF 28-135mm f/3.5-5.6 IS USM f/3.5–5.6
- Canon EF 28-70mm f/2.8L USM f/2.8
- Canon EF 28-80mm f/3.5-5.6 USM f/3.5–5.6
- Canon EF 28-80mm f/3.5-5.6 USM IV f/3.5–5.6
- Sigma 28-70mm f/2.8 EX DG f/2.8
- Tamron SP AF 28-105mm f/2.8 LD Aspherical IF f/2.8
- Tokina 28-70mm f/2.8 AT-X Pro SV f/2.8
- Tokina AF 28-80mm f/2.8 AT-X 280 Pro f/2.8
- Canon EF 24-105mm f/3.5-5.6 IS STM f/3.5–5.6
- Canon EF 24-105mm f/4L IS II USM f/4
- Canon EF 24-105mm f/4L IS USM f/4
Frequently asked questions#
Is the Canon EF 28-90mm f/4-5.6 USM full frame?
Yes — it covers the full 36 × 24 mm frame.
What is the Canon EF 28-90mm f/4-5.6 USM equivalent to on APS-C?
On a 1.5× APS-C body it frames like 42–135 mm, and like 45–144 mm on Canon APS-C.
What is the Canon EF 28-90mm f/4-5.6 USM good for?
As a standard zoom it suits everyday shooting, travel, events and walkaround use.
Sources & licences#
- Lensfun lens database — CC BY-SA 3.0
Last updated October 03, 2026 · How we calculate · Sources