Kodak did that once. they stopped. i believe that it is too hard to get and keep aligned.
Herb.... ----- Original Message ----- From: "Steve Jolly" <[EMAIL PROTECTED]> To: <pentax-discuss@pdml.net> Sent: Saturday, January 08, 2005 5:33 AM Subject: Re: Why didn't Pentax.... > Thinking about it, dust on the semi-silvered mirror would be far less of > a problem than dust on the sensor for the same reason that dusty lenses > are rarely something to get worked up about - the dust isn't at the > focal plane. Which makes me wonder if DSLR manufacturers couldn't > all-but-eliminate the problem of sensor dust by putting in a piece of > flat multi-coated glass (maybe even ED glass) between the mirror and the > sensor's anti-aliasing filter. You could even make it as easy to change > as a focussing screen. :-)
