there has been discussion on this list before about this lens. I can't remember whether it is just speculation or whether people have hard evidence for it, but the K 28/2 was said to be a joint development with Carl Zeiss. Certainly it is very like modern CZ lenses in its looks, and rather different from other K lenses in the gnurly part of the focus ring, if I remember correctly. It feels like a CZ to me, and is very similar in shape and feel to the CZ 21/2.8 that I have. It was one of my favourite lenses.
-- Bob > -----Original Message----- > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On > Behalf Of David Weiss > Sent: 14 February 2007 12:41 > To: Pentax-Discuss Mail List > Subject: Re: WTB: Pentax K 28mm f2.0 Lens > > Didn't know they had that type of design back then, always > thought that > was more of a modern design. Nice. I notice on Boj's site that the > resolution numbers are slightly better for the "m", so I suppose the > compromises they made were well done. Perhaps it is not quite as good > wide open? As soon as the weather breaks, I am going to find > out how it > performs wide open. > > Dave > > > > > J. C. O'Connell wrote: > > 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: [email protected] > > 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 > [email protected] > http://pdml.net/mailman/listinfo/pdml_pdml.net > > -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net
