Kenko 2x Teleplus Pro 300 DGX for Canon EF brand_Olympus Front and rear standards have

Front and rear standards have geared focus adjustment

but these too are unlikely to produce any visible effects

lens manual CD

This Novoflex adapter lets you use Olympus OM mount lenses on a Four Thirds digital SLR camera

There's not much else going on here

Kenko 2x Teleplus Pro 300 DGX for Canon EF brand_Olympus Front and rear standards haveThe Kenko 2x Teleplus Pro 300 DGX is a modern, high quality teleconverter for Canon EF cameras and lenses. Compatible with many (but not all!) EF mount telephoto lenses: compatibility is broader than Canon's own teleconverters, but not universal. Kenko has some compatibility information here: https: kenkoglobal. com support teleplus . In excellent condition, with original box. General reminder: most DSLRs will only autofocus lenses with an f5. 6