Mark Roberts wrote: >It's probably a mistranslation, then. Astigmatism is a lens aberration >in which light rays are bent differently along the horizontal axis >with respect to the vertical. Or vice-versa ;-)
To clarify: Imagine a "+" sign. With a lens exhibiting significant astigmatism you could get the horizontal bar of the "+" in focus but not the vertical bar. Or you could get the vertical bar in focus but not the horizontal. If your eyes have astigmatism that means your glasses or contact lenses cost extra. :) -- Mark Roberts - Photography & Multimedia www.robertstech.com -- 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.
