I never go very good results with the 2X Vivitar 4 element convertor myself
and pretty much quite using them because of that. I have a Soligor 1.5x that
performs much better, albeit not at the same magnification. I picked up the 7
element Tokina because it was cheap and I had heard good things about it. I
have not done any tests, but am looking forward to it. With the results one
can achieve using Provia 400F slower lenses and convertors become much more
viable than they were years ago. One of the problems I would run into with
teleconvertors in the past, was that the loss of image quality PLUS having to
shoot grainier faster film to compensate for the 2 stop loss made for very
poor images overall. I am hoping the Provia + the 7 element convertor enables
me to get decent images.
Jim Couch
"C.H.Ling" wrote:
> The lighting condition allow it or not is another issue, that is not
> related to optical quality. A tripod is needed in most cases for tele
> shoots if you want maximum sharpness. The Vivita 4 element 2x(?) must
> be very special, I never happy with the Tamron 4 element 2x I once
> owned, just far away from any 6/7 element 2x I have.
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