Fisheye · Four Thirds

Samyang 7.5mm f/3.5 UMC Fish-eye MFT

The Samyang 7.5mm f/3.5 UMC Fish-eye MFT is a four thirds prime lens (7.5 mm, f/3.5) for Micro Four Thirds. It belongs to the fisheye class — ideal for creative ultra-wide views, skateboarding, interiors and all-sky astro.

7.5 mmf/3.5Micro Four Thirds
7.5 mm
Focal length
f/3.5
Maximum aperture
111°
Diagonal angle of view (Four Thirds)
Four Thirds
Designed for

Specifications#

Brand
Samyang
Model
7.5mm f/3.5 UMC Fish-eye MFT
Lens type
Fisheye
Focal length
7.5 mm
Maximum aperture
f/3.5
Image circle
Four Thirds (17.3×13 mm)
Projection
Fisheye
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 7.5 mmEquiv. aperture (DoF)
Micro Four Thirds15 mm · 111°f/7.0

Depth of field & background blur#

Computed on its native Four Thirds format (CoC 15 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 four thirds.

FocalApertureat 1 mat 2 mat 5 mat 10 mHyperfocalBlur @2 m
7.5 mmf/3.513.1 m∞∞∞1.08 m0.0%
7.5 mmf/4∞∞∞∞94.5 cm0.0%
7.5 mmf/8∞∞∞∞47.6 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 7.5 mmNPF at 7.5 mm, f/3.5
Micro Four Thirds1/15 s33 s30 s

Adapt it to other systems#

Frequently asked questions#

Is the Samyang 7.5mm f/3.5 UMC Fish-eye MFT full frame?

No — it is designed for Four Thirds sensors.

What is the Samyang 7.5mm f/3.5 UMC Fish-eye MFT equivalent to on APS-C?

Its focal length is already the real value for Four Thirds: 7.5 mm frames like 15 mm on full frame.

What is the Samyang 7.5mm f/3.5 UMC Fish-eye MFT 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