I would think the term 'mirror lens' would make it obvious that they are used
for self portraiture, of course! For proof, I offer the URL to Hans van
Veluwen's esif home page:
http://www.veluwen.demon.nl/index.htm
They are particularly well suited for this activity because most have low
contrast and poor resolving power (the Zuiko excepted, of course).
OK, if you want a serious answer - they are telephoto lenses that use a mirror
as one of their elements to fold the light path and achieve a very compact size
for their focal length. Disadvantages are the fixed aperture, and out of focus
highlights are in the shape of little donuts - which can be very odd looking or
dramatic, depending on your composition. You can learn about the Zuiko 500mm
f/8 at:
http://www.veluwen.demon.nl/om-sif/lensgroup/500mmf8.htm
There are also a couple for sale on Ebay - one a nice Zuiko, and the other a
much less expensive but less capable Tokina being sold by someone I know
well....
Chip
cstrat@xxxxxxxxx
> -----Original Message-----
> From: owner-olympus@xxxxxxxxxxxxxxx
> [mailto:owner-olympus@xxxxxxxxxxxxxxx]On Behalf Of Eden
> Sent: Friday, August 27, 1999 2:27 PM
> To: olympus@xxxxxxxxxxxxxxx
> Subject: [OM] Lenses
>
>
> Could some kind person explain what 'mirror' lenses do?
> --
> Jenna
>
>
>
>
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