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Sony Alpha Blog
I absolutely think this lens is worth $100 US and [ ...] you can produce some killer frames with this full manual extremely affordable optic! The lens is not crazy sharp at f/1.2 [...] In the real world however, the lens performs really well I would say. It has some purple and green fringing in high contrast areas when at f/1.2 and f/1.4, but if you stop down to around f/2 most of that goes away.