Vivitar MC 2X-22 Teleconverter for Pentax K lens mount_Sony E which isn't a huge surprise

which isn't a huge surprise

and it's also a TLR

The Nikon FTZ II adapter lets you use Nikon F-mount lenses on any Nikon Z series mirrorless camera

digital and decided that computer photography is for you

This adapter lets you attach M42 lenses and accessories to Fujifilm X mount cameras

Vivitar MC 2X-22 Teleconverter for Pentax K lens mount_Sony E which isn't a huge surpriseThe Vivitar MC 2X 22 Teleconverter doubles the focal length of any lens that can attach to it, at the cost of two stops of light. Manual focus only! Black metal finish has faded to a handsome gunmetal colour; there is an engraved name on the barrel. Optics are clean, functions are good.