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. -- 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.
