[net.rec.photo] Query: Reflective Telephoto Lenses

pwb (04/20/83)

I am thinking about purchasing a telephoto lens.  The compactness
of the new reflective telephotos seems quite attractive.  Perhaps
such a compact lens, when used with the new `fast' Kodak film (ASA 1000),
would eliminate the need for multiple tripods (maybe none?) for long focal
length lenses.  May I query the knowledgeable inhabitants of netland to
provide some pros and cons on reflective telephoto lenses?  Thanks in advance.

		Phil Bonesteele - TRW
		{ucbvax,decvax,randvax}!trw-unix!pwb

smith@umn-cs.UUCP (06/06/83)

#R:trw-unix:-12000:umn-cs:9000007:000:456
umn-cs!smith    Apr 25 17:16:00 1983

  From my experience, I need the tripod just to keep the camera framed
and focused on the right object, and not entirely because I'm worried
about jitter.
  The big bummer with mirror lenses is that you can't usually adjust the
f-stop, though the Nikkors do (or used to) come with neutral density
filters for that purpose.
  Also, I'd check out how they respond to flare, etc.  I'll bet the
patterns are quite different than in conventional lenses.

Rick.