>From: "Mickey Trageser" <vze3m2s8@xxxxxxxxxxx>
>
>Why all the dead-air space in front of the
>front element of the 50/3.5macro?
That houses the helicoid focusing mechanism. This lens nearly doubles in
length, going from infinity to 1:2 focusing!
>The lens would be smaller than the pancake
>40 without it.
And would either have a similar focusing range, or would require extension
tubes.
--
: Jan Steinman -- nature Transography(TM): <http://www.Bytesmiths.com>
: Bytesmiths -- artists' services: <http://www.Bytesmiths.com/Services>
: Buy My Step Van! <http://www.Bytesmiths.com/van>
< This message was delivered via the Olympus Mailing List >
< For questions, mailto:owner-olympus@xxxxxxxxxxxxxxx >
< Web Page: http://Zuiko.sls.bc.ca/swright/olympuslist.html >
|