SMC Pentax-M 100mm f2.8 iso_100 It accepts eight AA batteries

It accepts eight AA batteries (not included) and connects via a coiled cable to the external power socket of the SB900/910 for faster recharge times and longer life than the four built-in batteries

Note: A flash sync terminal has been added to this camera as an aftermarket modification

7 lens is a solid

Heliopan UV -0 filter for 77mm filter threads

and a panoramic crop function if that's your thing

SMC Pentax-M 100mm f2.8 iso_100 It accepts eight AA batteriesThe SMC Pentax M 100mm f2. 8 lens is a nice, compact short telephoto lens, ideal for portraits or slightly too far away dogs. In good condition overall, with minor cosmetic wear and light internal dust which will not affect imaging.