high quality, versatile, easy to handle

+ Fits perfectly
+ Easy and dissuade
+ Protects the electrical connections
+ Can be different filter screw
+ Man kan the lens cap touched down and thus the camera ready prepared wherever you go without taking the lens or the lens is damaged
- Unfortunately, no guidance is, so you have to find out yourself that the silver button on the side of the lens has to be pushed away, so that the ring goes off. Sly get well so out;)

Conclusion:
Buy recommendation, as good value for money. For those who like to take pictures with lenses in reverse position.

---- Have the ring not och very long and therefore can not make any statements to wear ----