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 15 mm | Equiv. aperture (DoF) |
|---|---|---|
| Full frame | 15 mm · 111° | f/2.8 |
| APS-C | 22 mm · 86° | f/4.2 |
| APS-C (Canon) | 24 mm · 84° | f/4.5 |
| Micro Four Thirds | 30 mm · 72° | f/5.6 |
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: 16 mm f/2.8 on full frame.
| Focal | Aperture | at 1 m | at 2 m | at 5 m | at 10 m | Hyperfocal | Blur @2 m |
|---|---|---|---|---|---|---|---|
| 15 mm | f/2.8 | 85.0 cm | 6.58 m | ∞ | ∞ | 2.69 m | 0.1% |
| 15 mm | f/4 | 1.45 m | ∞ | ∞ | ∞ | 1.89 m | 0.1% |
| 15 mm | f/8 | ∞ | ∞ | ∞ | ∞ | 95.2 cm | 0.0% |
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 15 mm | NPF at 15 mm, f/2.8 |
|---|---|---|---|
| Full frame | 1/15 s | 33 s | 19 s |
| APS-C | 1/25 s | 22 s | 14 s |
| APS-C (Canon) | 1/25 s | 21 s | 14 s |
| Micro Four Thirds | 1/30 s | 17 s | 13 s |
Compatible cameras#
Bodies in our database with a native Canon EF, Sigma SA, Nikon F, Sony / Minolta A-mount and Pentax K mount.
- Ricoh Pentax KF 2022
- Ricoh Pentax K-3 Mark III 2021
- Nikon D6 2020
- Nikon D780 2020
- Canon EOS-1D X Mark III 2020
- Nikon D3500 2018
- Pentax K-1 II 2018
- Ricoh Pentax KP 2017
- Canon EOS 6D Mark II 2017
- Nikon D7500 2017
- Nikon D850 2017
- Nikon D5600 2016
- Ricoh Pentax K-1 2016
- Canon EOS 5D Mark IV 2016
- Canon EOS-1D X Mark II 2016
- Nikon D3400 2016
- Nikon D500 2016
- Ricoh Pentax K-70 2016
- Nikon D5 2016
- Ricoh Pentax K-3 II 2015
- Canon EOS 5DS 2015
- Nikon D5500 2015
- Nikon D7200 2015
- Canon EOS 5DS R 2015
- Sony Alpha 77 II 2014
- Nikon D4S 2014
- Nikon D750 2014
- Nikon D810 2014
- Nikon D3300 2014
- Nikon D7100 2013
- Sony Alpha 58 2013
- Pentax K-3 2013
- Nikon D5300 2013
- Nikon D610 2013
- Nikon Df 2013
- Pentax K-50 2013
- Blackmagic Design Pocket Cinema Camera 2013
- Canon EOS 5D Mark III 2012
- Canon EOS 6D 2012
- Canon EOS-1D X 2012
Adapt it to other systems#
Similar lenses#
Frequently asked questions#
Is the Sigma 15mm f/2.8 EX DG Diagonal Fisheye full frame?
Yes — it covers the full 36 × 24 mm frame.
What is the Sigma 15mm f/2.8 EX DG Diagonal Fisheye equivalent to on APS-C?
On a 1.5× APS-C body it frames like 22 mm, and like 24 mm on Canon APS-C.
What is the Sigma 15mm f/2.8 EX DG Diagonal Fisheye good for?
As a fisheye it suits creative ultra-wide views, skateboarding, interiors and all-sky astro.
Sources & licences#
- Lensfun lens database — CC BY-SA 3.0
Last updated October 03, 2026 · How we calculate · Sources