Leigh... If auto-focus is important to you, then you may want to consider the F 70-210/4-5.6 ED. Although I prefer the constant aperture of the A 70-210, I understand that the optical quality of the F lens is as good or better, and, of course, you'll save a bit on the weight. Perhaps Fred or another list member can comment on the optical quality differences between the two?
t On 11/16/04 16:54, [EMAIL PROTECTED] wrote: > I am interested in comparison of the following manual focus zoom lenses. I am > considering purchasing a zoom in the range 70-200mm, around f/4 is okay. How > do you rate the following lenses with respect to distortion, flare, sharpness, > luggability (is just too heavy to lug around), any other measure you think > appropriate? Main use would be landscape, and lawn bowls. Would you > recommend any other similar type of lens over these ones. > > 70-210 F/4 Pentax SMC A MACRO (58) > vs > 70-210 F/3.5 VIVITAR SER 1 MACRO (62) > or > 70-210 F/2.8-4 VIVITAR SER 1 MACRO (62) > > Existing gear I have: > Pentax MZ-6 > Sigma AF 28-80/3.5-5.6 (rarely used) > Pentax SMCT 28/3.5 > Vivitar MF 28/2.0 > Pentax SMC-F 50/1.7 > Tamron SP AF 90/2.8 > > -- > Leigh. > > >
