Nikon TC-17E II lens mount_Contax G This chrome Hasselblad Magazine 12

This chrome Hasselblad Magazine 12 is in reasonably good condition

Original Leitz Leica Brochure

If you don't mind a bit of extra exercise when you're changing apertures

this lens will not cover Micro Four Thirds (see pic for coverage at infinity)

Nikon TC-17E II lens mount_Contax G This chrome Hasselblad Magazine 12The 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.