Fisheye · Full frame

Canon EF 8-15mm f/4L Fisheye USM

The Canon EF 8-15mm f/4L Fisheye USM is a full frame zoom lens (8–15 mm, f/4) for Canon EF. It belongs to the fisheye class — ideal for creative ultra-wide views, skateboarding, interiors and all-sky astro.

8–15 mmf/4Canon EF
8–15 mm
Focal length
f/4
Maximum aperture
139°–111°
Diagonal angle of view (Full frame)
Full frame
Designed for
1.9×
Zoom ratio

Specifications#

Brand
Canon
Model
EF 8-15mm f/4L Fisheye USM
Lens type
Fisheye
Focal length
8–15 mm
Maximum aperture
f/4
Image circle
Full frame (36×24 mm)
Mount(s)
Canon EF
Projection
Fisheye
Autofocus motor
ultrasonic (USM)
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 formatAt 8 mmAt 11 mmAt 15 mmEquiv. aperture (DoF)
Full frame8 mm · 139°11 mm · 126°15 mm · 111°f/4.0
APS-C12 mm · 121°16 mm · 104°22 mm · 86°f/6.0
APS-C (Canon)13 mm · 118°18 mm · 101°24 mm · 84°f/6.4
Micro Four Thirds16 mm · 107°22 mm · 89°30 mm · 72°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: 14 mm f/4 on full frame.

FocalApertureat 1 mat 2 mat 5 mat 10 mHyperfocalBlur @2 m
8 mmf/4∞∞∞∞54.1 cm0.0%
8 mmf/8∞∞∞∞27.5 cm0.0%
11 mmf/451.7 m∞∞∞1.02 m0.0%
11 mmf/8∞∞∞∞51.5 cm0.0%
15 mmf/41.45 m∞∞∞1.89 m0.1%
15 mmf/8∞∞∞∞95.2 cm0.0%

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).

BodyMin. handheld shutter (longest focal)500 rule at 8 mmNPF at 8 mm, f/4
Full frame1/15 s62 s40 s
APS-C1/25 s42 s32 s
APS-C (Canon)1/25 s39 s31 s
Micro Four Thirds1/30 s31 s30 s

Compatible cameras#

Bodies in our database with a native Canon EF mount.

Adapt it to other systems#

Sony E-mountCanon RFNikon ZFujifilm X-mountMicro Four ThirdsL-MountCanon EF-MFujifilm G-mountHasselblad XCDNikon 1 (CX)Pentax QSamsung NXNikon FPentax K

Similar lenses#

Frequently asked questions#

Is the Canon EF 8-15mm f/4L Fisheye USM full frame?

Yes — it covers the full 36 × 24 mm frame.

What is the Canon EF 8-15mm f/4L Fisheye USM equivalent to on APS-C?

On a 1.5× APS-C body it frames like 12–22 mm, and like 13–24 mm on Canon APS-C.

What is the Canon EF 8-15mm f/4L Fisheye USM good for?

As a fisheye it suits creative ultra-wide views, skateboarding, interiors and all-sky astro.

Sources & licences#

Last updated October 03, 2026 · How we calculate · Sources