I wanted a wireless remote release the safe functioning at about 5 meters "outdoors" and regardless of the Emfangsrichtung. So I also wanted to time the camera can rotate in all directions at the Panorama head and stand far enough away to not "caught" me the fisheye. First of all worked as planned on about 2 feet ... but outside there were always problems. I had to "dislocations" make sparking the part. A new test in the interior with fresh batteries in the transmitter and receiver showed max. 60 cm reception performance and also depending on the position. Unsuitable for professional use.
+ Adapter with the good on a Sony fits this without scratching or the like. + Small, upright + 2 x AAA batteries in the receiver part + Receiver with on / off button - Radio distance too low - Special battery in the transmitter - Transmitter without on / off button