Samyang/Rokinon 8mm f/3.5 UMC Fish-Eye CS II review

The Samyang/Rokinon 8mm f/3.5 UMC Fish-Eye CS II, this is a neat diagonal fisheye lens for crop-sensor cameras

Samyang/Rokinon 8mm f/3.5 UMC Fish-Eye CS II
(Image: © Samyang)

Digital Camera World Verdict

Available in a whole heap of different mount options, this diagonal fisheye lens is designed for crop-sensor cameras of pretty much any and every variety. It can also be used on full-frame cameras, although the image circle won’t cover the whole frame. It’s generally a fully manual lens so you need to adjust both the focus distance and aperture using the lens’s control rings, only the Nikon F mount version enabling camera-based aperture control. Image quality is very pleasing on the whole, although the lens is quite susceptible to ghosting.


  • +

    Ultra-wide viewing angle

  • +

    Good build quality

  • +

    Competitive selling price


  • -

    Susceptible to ghosting

  • -

    Generally only aperture control from the camera

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Typical of diagonal fisheye lenses, the Samyang 8mm f/3.5 UMC Fish-Eye CS II gives an ultra-wide viewing angle, typically of around 180 degrees on most crop-sensor cameras. Its image circle covers the entire surface of the image sensor, so you get full-sized rectangular images but with the exaggerated barrel distortion of a curvilinear rather than regular rectilinear wide-angle lens.


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Matthew Richards

Matthew Richards is a photographer and journalist who has spent years using and reviewing all manner of photo gear. He is Digital Camera World's principal lens reviewer – and has tested more primes and zooms than most people have had hot dinners! 

His expertise with equipment doesn’t end there, though. He is also an encyclopedia  when it comes to all manner of cameras, camera holsters and bags, flashguns, tripods and heads, printers, papers and inks, and just about anything imaging-related. 

In an earlier life he was a broadcast engineer at the BBC, as well as a former editor of PC Guide.