Neewer® Trigger Remote Shutter Timer Remote Control for Canon EOS 550D / Rebel T2i 450D / XSi, 400D / XTi / 350D XT 300D 60D 600D 500D 1100D 1000D 1D 1D Mark II 1D Mark II N 1D 1Ds Mark III 1Ds 1Ds Mark III 5D 10D 20D 5D Mark II EOS 30D 40D 50D Film SLR EOS 1V 1VHS 3 (Electronics) 2
Neewer® Trigger Remote Shutter Timer Remote Control for Canon EOS 550D / Rebel T2i 450D / XSi, 400D / XTi / 350D XT 300D 60D 600D 500D 1100D 1000D 1D 1D Mark II 1D Mark II N 1D 1Ds Mark III 1Ds 1Ds Mark III 5D 10D 20D 5D Mark II EOS 30D 40D 50D Film SLR EOS 1V 1VHS 3 (Electronics)
So yes, it is very useful, it is functional ... I was lucky that mine works fairly well from a firmware point of view ... But I have no light (it is very low), The sticker on the center button was hidden behind the cover ... short, it is a matter of course, but I think it's better to save a little more for a little less hassle ... I also said that there was not, as many dintervallomètres of ON / OFF ... I had to weld myself and graft it onto one side of the unit .. .
In summary, it is Chinese material, so expect to random quality ... but it does the job ... You decide the money you want to spend ...