On Wed, Dec 4, 2013 at 7:51 PM, steve harley <[email protected]> wrote: > on 2013-12-04 10:37 Alexandru-Cristian Sarbu wrote > >> However, AFAIK HD is not a new version of SMC, but a different kind of >> coating (just like, but not really on the same level as Aero Bright >> Coating). I agree the name is generic, though. > > > are there any tests or other solid information about the qualities of HD vs > SMC?
Nothing scientific, but yes. They had a display demonstrating the difference between HD and "classic multicoating" at Photokina, the difference was visible (higher contrast). Not sure if the "classic multicoating" was their best SMC, and I wouldn't necessarily assume that. Then, the Pentax Forums review is linked to in the original post. This is the specific section we're interested in: http://www.pentaxforums.com/reviews/hd-pentax-limited-primes/aberrations-and-flare.html They were able to see a difference - when there's a strong light source in the frame, at least - and so do I. I remember seeing a Japanese quick test showing a similar difference. As I see it, there's no reason for me to update my smc Limiteds to HD ones; but I'd still want the new coating on new lenses. Regards, Alex -- 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.
