Vivitar MC Teleconverter 2X-21 2x Teleconverter for Olympus OM Cameras -Mint-
$17.95 USD
This is a high quality 2x teleconverter for Olympus OM film cameras (not mirrorless). Use it to double your lens's focal length while maintaining full integration between your lens and your camera.
It is in mint condition and works perfectly. The glass is clean and scratch-free with no haze, fungus or other problems.