BLAZE (zb@total.net)
Sun, 21 Feb 1999 12:23:32 -0500
>Lenses without moving
>elements can be optimized for only a single distance. For ordinary use the
>loss of correction at other distances isn't too great, but where absolutely
>the best possible performance is needed the distance is fixed. So, it would
>seem this is a lens for some use which requires a 1:6 reduction or
>magnification, needs to be exceptionally well color corrected and needs to
>be very fast. It is also likely very well corrected for distortion at its
>optimum magnification. Likely it was made for some application where it was
>desirable to make measurements of the recorded images.
Sounds like a photocopier to me...
Ben
This archive was generated by hypermail 2.0b3 on Sat Nov 06 1999 - 10:06:52