This is the first image of the Pentax 560mm f/5.6 ‘super-telephoto’ K-mount lens, due out later this year.
It went on show at the recent CP+ show in Yokohama, Japan, alongside a 50mm f/1.8 K-mount optic and other gear that was announced at the beginning of February.
Pentax 50mm f/1.8
Pentax 90mm f/2.8 for 645D
Pentax K-mount to Q-mount adapter
Pentax Q-mount telephoto
Picture credits: Damien Demolder