On Thu, 29 Oct 1998 18:04:52 -0500, VikenK wrote:

> I've been told by many people that I shouldn't really use a
>teleconverter with a zoom lens. Like I posted before, I inherited a 1.7X
>teleconverter and was planning on using it occasionally with my 28-105mm
>and 75-300mm zoom. I was told that I shouldn't use the teleconverter
>with a zoom, and insted, use it with a fixed lens. I was also told that
>if I did use it on a zoom, that I should use it on the long end of it
>focal length. Is this true? I guess I don't understand why I shouldn't
>be able to use a tele with a zoom lens. Thanks for the tips.

There are very few zooms sharp enough to still look good on
a converter - and, most zooms are so slow to begin with that
the combination can be too slow wide open to be useful (and
the needed stopping down for useable sharpness makes the
combination even slower). Try it, and see what you think...