- This is a macro coupler, also known as reverse ring.
- It is to be connect a lens reversely to another lens on their filter threads.
- In general, when a lens is reversely mounted, magnification is surprisingly increased.
- Focusing distance can be as close as 3cm or closer. Using a tripod is recommended.
- Made of aluminum with excellent anodized finishing.
- Camera and lens showing in photos are not included.