The A is much larger, but is also a fixed f4 max aperture. The F is smaller and lighter, but is a variabe aperture (f4-5.6) zoom. The A also has the better reputation optically, but from what I've heard and seen, the F is quite good.
-Adam Owns the A, quite happy with it. Walter Hamler wrote: > Any differenced between the Pentax 70~210 F vs the A version? KEH Camera > has several of each at very nice prices. > > Walt > > -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net
