Nikon TC-200  type_Black & White despite its age (these came

despite its age (these came out in 2006)

with only minor cosmetic wear and approximately 56k actuations

but you should be aware that image quality is definitely marginal (as it is with nearly all fisheye adapters)

unshuttered aerial lens originally designed for the UK's Air Ministry: it's the British* version of the Kodak Aero Ektar

VERY IMPORTANT NOTE: At infinity

Nikon TC-200 &nbsptype_Black & White despite its age (these cameThe Nikon TC 200 is a manual focus 2x teleconverter for Nikon F mount lenses. These have pretty good compatibility, mounting to many Nikon F lenses (though performance will vary). In excellent condition, with light finish wear, clean optics.