However, a point worries me, because much I still need for improvement of the company Hahnel:
When I tucked the shutter in my photo backpack, so I can not switch off him and when I come to the place where he is, I do not know if it triggers then. Basically does not have much, because no action that goes with it, but the battery of the trigger is used. So far, he has been holding four months and many trips in my backpack, and perhaps 50 times use, maybe it's negligible, but I know ultimately not exactly. Let's see what it looks like in a year.
I would buy it again.
Update 08/09/2011
The switch on the trigger really missing, because now it has happened. Photo shoot and the 3V button battery was empty because it was probably wrong. If I had times when not mitgehabt a spare battery, I would have been annoyed. The sudden flat battery was about 1 month old and still not in use, so from now I choose the next best thing: take the battery out so long.
So Fa Hahnel -.> Please change !!!