My point was that a TTL meter solves the problem of variation between light transmission in lenses of the same aperture. I didn't say all TTL meters are accurate. Obviously, they are not. But it's easy to determine the variation from what one considers an ideal exposure. Paul On Jun 29, 2006, at 1:40 AM, Shel Belinkoff wrote:
> Even TTL meters need to be properly calibrated for critical work. > They're > not all accurate, and different results can be had depending on how > much > and what areas of the scene a meter reads. Most of the time for most > people good enough is just fine. > > Shel > > > >> [Original Message] >> From: Paul Stenquist > >> Through the lens metering solves that problem quite nicely. If you >> want >> to use a handheld meter, you have to work a bit harder. > > >>> How would one achieve critical exposure accuracy if f/4 on one lens >>> was equivalent to f/4.5, or f/3.5 on another? > > > > -- > PDML Pentax-Discuss Mail List > [email protected] > http://pdml.net/mailman/listinfo/pdml_pdml.net > -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net
