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Latest Review Posted SMC Pentax-A 400mm F5.6
An affordable very sharp long lens. I bought it for shooting the eclipse and wasn't disappointed. I find making focus is easy with this lens. On my K-5 focus confirmation signal is very precise so I can even risk taking birds in flight! ... with about a rate of succes of 1 in 20. But for a slower moving subject I get really good results. The star field below was taken at f/5.6 and shows virtually no coma in the corners. It is a stack of several frames so it is slightly cropped. Without ED elements in the lens, you have to deal with a fair amount of purple fringing in PP and work on improving contrast

The lens sure packs a lot of bang for the bucks.

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