Archived posting to the Leica Users Group, 2003/09/10
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]Buzz Hausner wrote: > > One difference between the spherical and aspherical 35mm Summicrons is > that the spherical version has ten diaphragm blades while the aspherical > has eight. I believe that this is the reason for the spherical versions > much admired buttery-smooth bokeh as compared to the aspherical's more > "etched" bokeh. It still has nothing to do with the Fifties and Sixties > era optics, though. > > Buzz > The shape of the blades are being experimented with and help determine the right number of blades. I know Leica's special N system is into this I bet also the lowly show off C system. Those White lenses are said to have thirty hexidecimal hyperparabolic graphite blades tinted pink for fleshtones and skies. A Silent Wave to all and with good cheer. Mark Rabiner Portland, Oregon USA http://www.rabinergroup.com - -- To unsubscribe, see http://mejac.palo-alto.ca.us/leica-users/unsub.html