Eeuw, why would you want non-coated glass. Flare, internal reflections, veiling flare. Regards, Bob S.
On Wed, May 29, 2013 at 11:45 PM, Alan C <[email protected]> wrote: > Refer to: > > http://kmp.bdimitrov.de/lenses/zooms/_non-SMC/index.html > > Note there is no "SMC" prefix. They may be optically the same. > > Alan C > > John Francis wrote: > > Are you sure you meant to put that qualifier there? > > AFAIK the F line (effectively the first auto-focus series) > had multi-coating, just like the earlier M and A lenses, > and the subsequent FA lenses. The difference between the > F and the FA lenses is mostly in the information that is > transmitted over the digital signal pin; while the exact > details escape me now I think it might be that the FA > lenses also tell the camera the focus distance the lens is > set to, which allows for more complex exposure metering. > > > -- > 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. -- 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.
