> The "standard" set of three Kenko tubes (12,20 & 36mm) do not support
> autofocus. The two that are sold separately (12mm and 25mm) do allow
> autofocus. I have the 25mm tube and the 20-35 Canon lens; if you would
like
> me to do some specific testing drop me a note off of the list, but I don't
> have any dogs ;^)
>
> Tom P.
Tom, thanks for the answer, maybe you can give me some more info here.
I want to focus a bit closer than the minimum focus, which is about 14
inches. Which tube would give me, say 8-12 inch minimum focus? It sounds
like I want autofocus, I think the 12mm tube would do what I want - possibly
the 25mm tube would not allow me to focus far enough out. How close and how
far out can the 25mm tube focus? I need a decent DOF from about 8 to 36
inches. (That's about the length of a dog nose to tail mostly :-)
Sorry not to email privately, don't have your address. In any case, this
is definitely EOS stuff, maybe someone else is interested too.
Email: [EMAIL PROTECTED]
Webpage:http://www.kjsl.com/~jbdavis/
'Every footstep must be true.' Bruce Cockburn
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