Nikon TC-200  type_Black & White The Nikon Speedlight SB-910 is

The Nikon Speedlight SB-910 is a professional on-camera flash that provides full manual control on or off camera

VERY IMPORTANT NOTE: At infinity

but then again I'm no theologian

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)

Nikon TC-200 &nbsptype_Black & White The Nikon Speedlight SB-910 isThe 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.