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Samyang / Rokinon 8mm F3.5 Aspherical IF UMC CS II Fisheye

Canon EF

Samyang / Rokinon 8mm F3.5 Aspherical IF UMC CS II Fisheye

Focal length
8 mm
Aperture
f/3.5
Weight
443 g
Filter diameter
–
Min. focus distance
30 cm
Length
77.3 mm
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At a Glance

This fisheye for Canon EF APS-C cameras has a focal length of 8 mm, a full-frame equivalent of 13 mm. It captures an extremely wide view in which straight lines toward the edges appear curved. The maximum aperture is f/3.5, and focusing is manual down to 30 cm. A petal hood is built in. It is used for creative shots and action.

Good for

  • Creative
  • Action

Worth knowing

  • Designed for APS-C: only usable on EOS cameras with an APS-C sensor.
  • Fisheye projection: straight lines away from the center are rendered curved.

Derived from the manufacturer data, not from our own tests. How we check

Technical Specifications

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Min. focal length
8 mm
Max. focal length
8 mm
Max. aperture (min. zoom)
f/3.5
Max. aperture (max. zoom)
f/3.5
Min. aperture
f/22
Elements
10
Groups
7
Weight
443 g (0.98 lb)
Filter diameter
–
Min. focus distance
30 cm (11.81 in)
Length
77.3 mm (3.04 in)
Diameter
75 mm (2.95 in)

Manufacturer data: rokinon.com

Last checked: October 13, 2026 (against the manufacturer data) · How we check

Simulate depth of field and angle of view

Compare with other lenses

Which cameras does the Samyang / Rokinon 8mm F3.5 Aspherical IF UMC CS II Fisheye fit?

The Samyang / Rokinon 8mm F3.5 Aspherical IF UMC CS II Fisheye is made for Canon APS-C cameras, where its field of view equals 13 mm in full-frame terms. It is not meant for full-frame EOS bodies: EF-S lenses do not mount on them at all, and third-party APS-C lenses vignette heavily.

Canon EF cameras

APS-C:
Canon EOS 850D (Rebel T8i),Canon EOS 90D,Canon EOS 250D (Rebel SL3),Canon EOS 4000D (3000D, Rebel T100),Canon EOS 2000D (1500D, Rebel T7),Canon EOS 800D (Rebel T7i),Canon EOS 77D,Canon EOS 200D (Rebel SL2),Canon EOS 80D,Canon EOS 1300D (Rebel T6),Canon EOS 750D (Rebel T6i),Canon EOS 760D (Rebel T6s),Canon EOS 7D Mark II,Canon EOS 1200D (Rebel T5),Canon EOS 70D,Canon EOS 700D (Rebel T5i),Canon EOS 100D (Rebel SL1),Canon EOS 650D (Rebel T4i),Canon EOS 60Da,Canon EOS 600D (Rebel T3i),Canon EOS 1100D (Rebel T3),Canon EOS 550D (Rebel T2i),Canon EOS 60D,Canon EOS 7D,Canon EOS 500D (Rebel T1i),Canon EOS 50D,Canon EOS 450D (Rebel XSi),Canon EOS 1000D (Rebel XS)

With the Canon Mount Adapter EF-EOS R the lens can also be used on Canon RF cameras.

With the Canon Mount Adapter EF-EOS M the lens can also be used on Canon EF-M cameras.

Samyang / Rokinon 8mm F3.5 Aspherical IF UMC CS II Fisheye compared

Key specs side by side with the most similar Canon EF lenses.

LensSamyang / Rokinon 8mm F3.5 Aspherical IF UMC CS II FisheyeSigma 8mm F3.5 EX DG Circular FisheyeSamyang / Rokinon 10mm F2.8 ED AS NCS CSSigma 10mm F2.8 EX DC HSM Diagonal Fisheye
Focal length8 mm8 mm10 mm10 mm
Max. aperturef/3.5f/3.5f/2.8f/2.8
Weight443 g400 g590 g475 g
Filter diameter––––
Min. focus distance30 cm13.5 cm24 cm13.5 cm
Length77.3 mm68.6 mm106.1 mm83.1 mm
Autofocusnoyesnoyes
Image stabilizationnononono
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Samyang / Rokinon 8mm F3.5 Aspherical IF UMC CS II Fisheye: FAQ

Does the Samyang / Rokinon 8mm F3.5 Aspherical IF UMC CS II Fisheye have autofocus?

No, the Samyang / Rokinon 8mm F3.5 Aspherical IF UMC CS II Fisheye has no autofocus; you focus it manually.

Does the Samyang / Rokinon 8mm F3.5 Aspherical IF UMC CS II Fisheye have image stabilization?

No, the Samyang / Rokinon 8mm F3.5 Aspherical IF UMC CS II Fisheye has no stabilization of its own. On cameras with in-body image stabilization (IBIS) the image is still stabilized.

How much does the Samyang / Rokinon 8mm F3.5 Aspherical IF UMC CS II Fisheye weigh?

The Samyang / Rokinon 8mm F3.5 Aspherical IF UMC CS II Fisheye weighs 443 g. It is 77.3 mm long with a diameter of 75 mm.

How close can the Samyang / Rokinon 8mm F3.5 Aspherical IF UMC CS II Fisheye focus?

The minimum focus distance of the Samyang / Rokinon 8mm F3.5 Aspherical IF UMC CS II Fisheye is 30 cm, measured from the sensor plane.

Is the Samyang / Rokinon 8mm F3.5 Aspherical IF UMC CS II Fisheye a full-frame lens?

No, the Samyang / Rokinon 8mm F3.5 Aspherical IF UMC CS II Fisheye is an APS-C lens. On APS-C cameras its field of view equals 13 mm in full-frame terms.

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