Kostas Kavoussanakis wrote:
On Sat, 4 Feb 2006, John Whittingham wrote:
Would it be preferable to set the lens at infinity or a shorter
distance in
your opinion.
The manual states that you may get vignetting if not at infinity. But
the T/C does not have a great focussing range (trade-off for speed), so
some times you are forced to pre-focus (if approximately).
Kostas
I'm not so sure that it is a tradeoff as much as a need to adhere to
optical rules. But, as you imply and nobody else has mentioned
specifically, it is very fast at focusing.
mike
