Pentax	Surefoot
300mm f2.8 MF SMCP-A	NX2
300mm f2.8 AF SMCP-F	NX2
400mm f2.8 ED(IF)	NX2
500mm f4.5 MF SMCP	NX3
600mm f4.0 AF SMCP-F	NX4
800mm f6.7 IF SMCP-67	NX4
1200mm f8.0 MF SMCP	NX4
250-600mm f5.6 ED(IF)	NX4