I bought this lens to replace my stolen Pentax M 80-200mm f4.5 zoom. The Vivitar is a manual focus lens and has the similarity opening of f4.5 too. The Vivitar is used with the Pentax K200D and K7 bodies along side with my other old manual lens. At my age 59, I still shoot very sharp at handheld with the 80-200 zooms, its so versatile. The weight is about the same as the Pentax so I am OK with it. Please note that this manual lens are much heavier than the AFs but I still love it.
If you are a camera enthusiast, like taking close-ups...this lens will help you accomplish your goal...it is a very nice lens to add to your kit....
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