> > "Vesa Perala" <[EMAIL PROTECTED]> wrote:
> > Any idea how short the EOS extension tubes can/could be?
> > I know the 12mm tubes are common but for wideangle lenses I would
> > prefer something like half of that.
> > Has anyone opened and checked the 12mm tubes inside; is there
> > a reason why they couldn't be even shorter?
>
>Hi Vesa,
>
>In what situation do you find that <%ONTOPIC%> 12mm extension
>tube is too long?
I only have an OFFTOPIC 12mm tube but nevertheless, it is too
long if I want to focus a wide angle lens just a bit closer than
what is possible with the lens alone. Like EF24/2.8 or EF35/2.
....snip.....
>But why would such a thing does not exist?
>
>. Maybe it is easier to crop the resultant photo during printing?
Crop?
Angle of view (?) changes. No good.
>. Or maybe it so easy to adjust the magnification by adjusting
> the working distance (with your feet or a macro focussing rail)?
Well, not if the lens doesn't focus close enough.
>. Or to move the zoom ring and/or focus ring to get the exact
> magnification you want on a zoom lens?
"Angle of view (?) changes. No good."
"Well, not if the lens doesn't focus close enough."
>. Or maybe to change to another lens? E.g. the <%ONTOPIC%> 100mm
> macro where the magnification is continuously adjustable down
> to 1:1
Angle of view (?) changes. No good.
I want wide angle, and close to the subject too.
>Does this make any sense?
Who knows...? ;-)
>Cheers
>Julian Loke
regards, Vesa-Pekka
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