The 2.8 version is a 2.8-4 not constant aperture, so in average it is
not faster.
C.H.Ling
John Cwiklinski wrote:
>
>
> I have and use the Vivitar Series 1 70-210 f2.8 (58mm filter) and it is a
> one-touch. This lens is much lighter & quicker (half-stop) than the
> one-touch Series 1 70-210 f3.5 (67mm filter) and takes excellent . I would
> recommend the f2.8 over the f3.5 just on the weight issue (You can use the
> f3.5 as a boat anchor). You can find the f2.8 for about $100.00 USD. See
> Gary Reese's lens test for both the Tamron & Vivitar Series 1
> (http://members.aol.com/olympusom/lenstests/default.htm under section "NON
> ZUIKO LENSES FOR OM SYSTEM"). My $0.02
>
> ________________
> John Cwiklinski
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