Autofocus SLRs have a half-silvered mirror area, and a secondary mirror behind the primary one that reflects the light down to the focus sensor, which is on the bottom of the mirror box.
--- Gonz <[EMAIL PROTECTED]> wrote: > How does the AF see > the image if not through the focusing screen, i.e. > if its under the > mirror, then how does it see the image? > __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com

