... .Shutter control: half-way or full-way press button.3.Compatible with DSLR camera, such as Canon, Nikon, Sony, Pantex, Samsung ... 29.4 x 20.3 MM Weight:55 g Photoshow Compatible with:CANON EOS 1V 1Ds 5D 7D 5DII 10D 20D ... : DSLR α900,α850, α700, α550, α500,α350, α300, α200, α100.Konica Minolta: DIMAGE α2, α1,9,7Hi,7i,7,5,4,3 ...