Matthew Hunt wrote:
On Mon, Apr 18, 2011 at 7:20 PM, Keith Whaley <[email protected]> wrote:
Ken Waller wrote:
My Merriam Webster's - "binocular - a hand-held optical instrument
composed of two telescopes and a focusing device and usually having prisms
to increase magnifying ability - usually used in plural."
Kenneth Waller
I take exception to that.
The prisms are used to decrease the length of the telescopes for any given
power. Period.
Semicolon; the prisms serve to rectify the image, which would
otherwise be inverted.
Correction needed and greatfully accepted, Matthew. Thanks.
keith
--
PDML Pentax-Discuss Mail List
[email protected]
http://pdml.net/mailman/listinfo/pdml_pdml.net
to UNSUBSCRIBE from the PDML, please visit the link directly above and follow
the directions.
