... shutter without touching the camera body, ideal for macro photographyNo battery ... 20.Contax : 645,N1, NX,N Digital.-----------------------------------------------------------------------------------------------RC-201/S1SONY : DSLR α900,α850, α700 ... ,L1.Leica: DIGILUX2,DIGILUX3.-----------------------------------------------------------------------------------------------RC-201/UC1Olympus:E620,E550,E520 ...