The Samyang 35mm F1.2 ED AS UMC CS lens is a very good quality lens. If you read reviews it gives better results than xf35mm f1.4 in terms of DOF, sharpness and overall quality. I bought it for £399 two years ago but then my camera got stolen and I got different brand from my partner. The lens is in a good condition, I taken a good care of it. Used one in worse condition on mpb costs around £250. It works with all Fujifilm X-series cameras. I also had the Fujifilm xf35mmf1.4 which produced much worse results than this one, that’s why I used Samyang for work and Fujinon for casual stuff but decided to sell it and make samyang my everyday+work lens.
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