Review on 📸 Canon EF 2.0X III Telephoto Extender - Enhancing Canon Super Telephoto Lens Capability by Michael Hudson

Excellent. Purchased for use with Canon 200-400mm with Fotodiox Canon Lens Adapter for Samsung NX1 Mount. Outstanding compatibility, the sharpness and color reproduction you've come to expect from Canon lenses. The only issue I had was the inability of the supplier to package the product properly and the extension came out of the box and bounced around the box but with that said the extension works great and considering how it arrived is, it should be pretty solid. although I have no plans to test it further :P