Originally posted by dcshooter
Can't agree at all.
90+% of those legacy lenses are perfectly useable (and are being used) on aan APS-C body. I've sold tons of 50mm lenses, which would seem to be a "white elephant" length at APS-C, to APS-C owners.
And of the Pentax lenses out there, I'd imagine at least 90-95%% are MF lenses. Do you really think there are that many F and FA AF (let alone Silent motor AF) lenses on the market? What's more, it's pretty clear that many of the ones that are out there would have to be pried form their owners' cold dead hands to be available to the market at large.
Pentax gets zero dollars from the second-hand market / used lens market. Or, from all legacy lenses they get nothing in return. They cannot sell any FF camera at high enough prices and sufficient profits to sell enough of cameras alone and not worry much about new lenses.
Leica can do that – earn profit from camera sales — but Pentax cannot. Pentax is immediately compared to its peers, Nikon and Canon, and Pentax loses immediately if their camera is twice as expensive to compensate on lost sales of lenses. Nikon and Canon have no such problems. They have invested bare minimum in APS-C and they have tons of current and new FF lenses.
But Pentax must sell
new lenses together with all new cameras, and if there is a camera that may exploit old lenses (found at bargain prices) better than any current APS-C camera, then:
a) they won't sell enough of FF cameras to cover the expense and earn anything
b) the sales of their current lenses will suffer, including the DA lenses, as many people would choose FF instead of a K-3.
However you turn it, the legacy lenses are a good bragging right, but in reality a practical handicap and PITA for Pentax.