Fish Eye Lens Samyang 8mm f/3.5 UMC Fish Eye CS II
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The Samyang 8mm f/3.5 UMC Fish Eye CS II is a typical diagonal fisheye lens that provides an ultra wide viewing angle, typically around 180 degrees on most crop sensor cameras. Its image circle covers the entire surface of the image sensor, so you can obtain a full-size rectangular image, but with exaggerated barrel distortion of curves rather than conventional straight wide-angle lenses. The physical length of the lens may vary depending on the mount options, ranging from 73mm for the Nikon F version to 101mm for the Canon M, Fuji X, and Sony E versions.