Originally posted by Pål Jensen But those lenses are totally different constructions. The coming DA 560/5.6 will be much cheaper (but longer!) than a conventional ED IF telephoto and will be currently the only one of its type that I'm aware of. It seems to be of the same telescopic construction as the old Leitz Telyt 560mm lens explaining its length....
....Theres nothing on Pentax roadmap suggesting FF. If FF lenses are in the works they are not on the map...
What makes you think it's telescopic?
The knob at the end looks to be for a built-in lens hood, the knob in the middle is for the tripod mount, and the knob near the mount is for a drop-in filter. Apart from the colour, it looks exactly like a DA* lens to me.
And there are other lenses on the roadmap which strongly suggest a full frame might be on the horizon....