LensTip.com

Lens review

Samyang 8 mm f/3.5 Aspherical IF MC Fish-eye

12 May 2009
Arkadiusz Olech

8. Vignetting



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Even the largest evenly lit vignetting test chart is too small for a fisheye. In case of Sigma 2.8/10, problems could be avoided, as the lens was tested on Canon 20D, whose crop factor narrowed the field of view of to 167 degrees. It was, therefore, not a real fisheye. When it comes to Samyang, we have exactly 180 degrees and an appropriate shot of the chart could not be taken. What we did acquire and the night sky shots, however, let us make rough estimates of what vignetting is like. A glimpse of an eye at the photos taken with Samyang shows that the problem caused by the fault is insignificant. Our estimates confirm the impression. We think that even at maximum aperture, corner darkening amounts -0.6EV at most.