I have a Vivitar series 1 70-210 f3,5 that I love. I do not mind manually focusing and exposing, and this lens produces (to my eyes) amazing results. CA and PF are a problem of sorts at wide apertures, but nothing dramatic. this is what the lens can do:
Manual focus is not an option for the wife, however, so she never uses that lens, and gets scared when it's on the camera. The lens is also very heavy.
I have the possibility to purchase, for a good price (and including a camera, a case, and accessories, that I could try to resell) a Pentax-F 70-210. The obvious gains are size and AF. But I've always been using lenses whose IQ is excellent, and I do not want to replace my Viv with a poorer lens.
Question : even though the Viv is reknowed for IQ, are more recent lenses likely to be better? I've never used a tele in this range so I have no point of comparison.
In other words, what would you do? Get the Pentax or keep the Viv, a known quantity?
Thanks for any input.
Last edited by bdery; 06-14-2009 at 12:57 PM.