After the first tests were carried out faster delivery of the object. At the first opening of the closure clamp was very greasy / oily, so I first had the clamp and then clean hands. The first fitting the lens was satisfactory that fit very well, the lens is very well held by the tripod collar. The color deviation is clearly visible, but does not bother me, especially since the original clamp would cost with original color 150.
What I do not like so much the fact that I have to open the clamp to 95%, if I want to rotate the lens within this. Since then missing perhaps a quarter turn of the screw, and the lens with the camera falling out of the holder. This is certainly not the point of it. Therefore 4/5 stars. Otherwise strong buy recommendation.
