K lenses did not cease producton when A was introduced because some lenses were not possible in A version but still desireable to keep in the lineup.
Secondly, the production numbers speak for themselves. It doesn't matter years it matters how many lenses Pentax has just abandoned support on for no compatiblity reason whatsoever... and based those production numbers it looks like they have abandoned full support of most of the bayonet mount lenses they have ever made because most lenses they have ever made are K/M types.. jco -----Original Message----- From: William Robb [mailto:[EMAIL PROTECTED] Sent: Wednesday, September 21, 2005 11:54 AM To: [email protected] Subject: Re: Camera engineering (This is signifigant) ----- Original Message ----- From: "graywolf" Subject: Re: Camera engineering (This is signifigant) >I get 13 years (72-85), and those were the years Pentax was outselling >about everybody (the golden years?). Of course if they had real backward >compatability you could use that Tessar you bought in 1905 on the D ><grin>. Funny thing is that if Pentax were like the other companies it >would have a Z-mount and nothing else would even fit on the camera. I used Boz's page as a reference. He lists the original K mount as 1975, and the Ka mount as 1983. Technically 8 years, possibly as little as seven, since we don't know if they were full years, so to speak, possibley 9 years, if there was old stock to get rid of. William Robb

