> The extra ap blade would be nice. Yes, Steve. Not only does nine blades make for a slightly rounder aperture opening than eight, but some current thinking claims that an ~odd~ number of diaphragm blades is better than an even number for good bokeh. (Of course, all of this would be significant only if the lens is stopped down, since the aperture opening on most lenses, including both 50/1.2's, is round wide-open, when the diaphragm blades totally retract out of sight.)
It actually is surprising that Pentax made such a diaphragm blade change from the K to the A versions (which otherwise seem quite similar, except for a coating difference) - the 50/1.2's are not exactly high-volume sellers - <g>. I remember when I first spotted the difference pointed out on Boz's site, and I did a proverbial "double-take" - <g>. Fred - This message is from the Pentax-Discuss Mail List. To unsubscribe, go to http://www.pdml.net and follow the directions. Don't forget to visit the Pentax Users' Gallery at http://pug.komkon.org .
