Nikon TC-17E II  type_Developing Tanks 5 AI Nikkor is a

5 AI Nikkor is a classic short telephoto lens for portraits or

and the microscopically clean surface discourages the accumulation of futher dust

Carl Zeiss F Sonnar 150mm f2

lightweight head suitable for DSLRs or mirrorless cameras

and it kind of works like an older camera

Nikon TC-17E II &nbsptype_Developing Tanks 5 AI Nikkor is aThe Nikon TC 17E II is an autofocus teleconverter designed for select Nikon AF S telephoto lenses (here's Nikon's compatibility list). Provides a 1. 7x focal length boost, loses about a stop and a half of light. In good cosmetic condition, with minor paint and finish wear. Good optics and function. Includes caps.