Specifications#
- Brand
- Canon
- Model
- EF 75-300mm F4-5.6 III
- Lens type
- Telephoto zoom
- Focal length
- 75–300 mm
- Maximum aperture
- f/4–5.6
- Image circle
- APS-C (23.5×15.6 mm)
- Mount(s)
- Canon EF-S
- Projection
- Rectilinear
- Introduced
- 1999
- Lensfun correction profile
- Yes — distortion/vignetting/TCA
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 75 mm | At 150 mm | At 300 mm | Equiv. aperture (DoF) |
|---|---|---|---|---|
| APS-C | 112 mm · 21° | 225 mm · 11° | 450 mm · 5° | f/6.0 |
| APS-C (Canon) | 120 mm · 20° | 240 mm · 10° | 480 mm · 5° | f/6.4 |
| Micro Four Thirds | 150 mm · 16° | 300 mm · 8° | 600 mm · 4° | f/8.0 |
Depth of field & background blur#
Computed on its native APS-C format (CoC 20 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: 85 mm f/4 on aps-c.
| Focal | Aperture | at 1 m | at 2 m | at 5 m | at 10 m | Hyperfocal | Blur @2 m |
|---|---|---|---|---|---|---|---|
| 75 mm | f/4 | 2.6 cm | 10.7 cm | 68.8 cm | 2.81 m | 72.0 m | 3.1% |
| 75 mm | f/8 | 5.1 cm | 21.5 cm | 1.40 m | 5.98 m | 36.0 m | 1.6% |
| 150 mm | f/4 | 0.6 cm | 2.6 cm | 16.9 cm | 68.6 cm | 288 m | 12.9% |
| 150 mm | f/8 | 1.2 cm | 5.1 cm | 33.8 cm | 1.38 m | 144 m | 6.5% |
| 300 mm | f/4 | 0.1 cm | 0.6 cm | 4.1 cm | 16.9 cm | 1.2 km | 56.3% |
| 300 mm | f/8 | 0.2 cm | 1.2 cm | 8.2 cm | 33.7 cm | 576 m | 28.2% |
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 75 mm | NPF at 75 mm, f/4 |
|---|---|---|---|
| APS-C | 1/500 s | 4 s | 3 s |
| APS-C (Canon) | 1/500 s | 4 s | 3 s |
| Micro Four Thirds | 1/640 s | 3 s | 3 s |
Compatible cameras#
Bodies in our database with a native Canon EF-S mount. Full-frame bodies switch to an APS-C crop with this lens.
- Canon EOS 850D 2020
- Canon EOS 250D 2019
- Canon EOS 90D 2019
- Canon EOS 2000D 2018
- Canon EOS 4000D 2018
- Canon EOS 200D 2017
- Canon EOS 77D 2017
- Canon EOS 800D 2017
- Canon EOS 1300D 2016
- Canon EOS 80D 2016
- Canon EOS 750D 2015
- Canon EOS 1200D 2014
- Canon EOS 7D Mark II 2014
- Canon EOS 100D 2013
- Canon EOS 700D 2013
- Canon EOS 70D 2013
- Canon EOS 650D 2012
- Canon EOS 600D 2011
- Canon EOS 550D 2010
- Canon EOS 60D 2010
- Canon EOS 500D 2009
- Canon EOS 7D 2009
- Canon EOS 1000D 2008
- Canon EOS 450D 2008
- Canon EOS 50D 2008
- Canon EOS 40D 2007
- Canon EOS 400D 2006
- Canon EOS 30D 2006
- Canon EOS 350D 2005
- Canon EOS 20D 2004
- Canon EOS 300D 2003
- Canon EOS 10D 2003
- Canon EOS D60 2002
- Canon EOS D30 2000
- Canon EOS 1100D
- Canon EOS 760D
- Canon EOS 8000D
- Canon EOS Digital Rebel XSi
- Canon EOS Kiss Digital F
- Canon EOS Kiss Digital X
Adapt it to other systems#
Similar lenses#
Frequently asked questions#
Is the Canon EF 75-300mm F4-5.6 III full frame?
No — it is designed for APS-C sensors. On a full-frame body it vignettes or triggers crop mode.
What is the Canon EF 75-300mm F4-5.6 III equivalent to on APS-C?
Its focal length is already the real value for APS-C: 75–300 mm frames like 115–460 mm on full frame.
What is the Canon EF 75-300mm F4-5.6 III good for?
As a telephoto zoom it suits sport, wildlife, events and compressed landscapes.
Sources & licences#
- Lensfun lens database — CC BY-SA 3.0
Last updated October 03, 2026 · How we calculate · Sources