I need this niche lens but for anyone wanting to do the same - I bought it to use with my Nikon D850 to use Create HDRI for VFX/CG (with PTGui). I'm also a professional photographer and have a lot of experience with lenses and this lens is amazingly sharp for the price, although I would never use it for anything other than creating spheres for my CG work. I'm removing 1 star because the infinity focus is off and the infinity is actually a significant distance from the actual marker on the watch face. For almost every application I just have to dial a ring between the last unit of measurement (5 or 7 feet I think) and infinity, but if I always make it clear it works for me. I wouldn't recommend this lens if you're filming and can't check critical focus right away.
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