RE: TC-16A - 'Alternative' use. [v04.n221/4]

[Joel M. Berez]

Ilkka,

>
> If I drive the internal focusing elements of the TC-16A to one end (the
> front end?), will the AF 300/2.8 focus closer than it would without the
> TC-16A?  You would imagine that the TC-16A forms a (very short)
> extension tube.
>

Yes, that works, but I only get about 6 inches closer with my 300.  The
TC-16A gives you up to 5mm of extension, which makes a bigger difference on
shorter lenses.

Incidentally, you can still use autofocus within the 5mm range (unless you
have an F100!).

Joel