On Jan 15, 2007, at 8:05 AM, Joseph Tainter wrote: >> I did check the Katz Eye site and it looks to be a good option for >> screens not offered by Pentax. > > The Katz Eye screens are well respected, but they may affect metering.
The focusing aid is what causes metering issues as the focusing aid has to be optically aligned on center to work, where the Pentax metering cells are NOT optically on center, particularly in spot pattern mode. In CW Averaging and Matrix mode, this is less of an issue. Also, the OptiBrite finish can cause some calibration drift, but that's an optional treatment too. I tested my custom Katz Eye (no focusing aids, standard surface finish) with the *ist DS extensively and it produced no deviation from standard exposure calibration. (That body nearly always needs +0.3 to +0.7 EV compensation for best RAW exposure. Godfrey -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net
