Nikon TC-20E III  type_Collectible Vivitar 2x Macro Focusing Teleconverter

Vivitar 2x Macro Focusing Teleconverter for the Canon FD manual focus lensmount

It's got built-in Arca-style rails for tripod mounting and a battery door cutout so you can change the battery and SD card without removing the grip

Includes GG-1 hood and pouch

with minor wear from careful use

Nikon TC-20E III &nbsptype_Collectible Vivitar 2x Macro Focusing TeleconverterThe Nikon TC 20E III is an autofocus teleconverter designed for select Nikon AF S telephoto lenses (here's Nikon's compatibility list). Doubles focal length of compatible lenses, at the cost of two stops of light. In excellent cosmetic condition, with only very minor paint and finish wear. Good optics and function. Includes caps.