The K28/2 was an all out expensive floating element design which optimizes image quality at all focussing distances and apertures, the M28/2 was not. The M28/2 was compromised for price and much smaller size/weight considerations instead.
The K28/2 is most unusual for a 28mm lens, it has a barrel profile very similar to a typical 105mm/2.8 lens! jco -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Jim King Sent: Tuesday, February 13, 2007 1:22 PM To: pdml@pdml.net Subject: Re: WTB: Pentax K 28mm f2.0 Lens David Weiss wrote on Mon, 12 Feb 2007 19:37:42 -0800 > I wonder how that [the K28/2] is rated? I have the "M" version of > that lens. What > do you think of the optical qualities of the "M" version? Is it more > rare than the "K"? According to Boz's site, the K28/2 is an entirely different design than the M28/2, with one additional element, and it weighs almost twice as much. Takinami says that along with the K28/3.5, it's the best of the Pentax 28s. I have the M28/2 already and if I ever get the K28/2 it will be interesting to compare them. Regards, Jim -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net
