I'm doing self-portraits with my Canon EOS 1000D using a chip remote shutter release RS-60E3 and delaying shutter to 10s, so I can take the right position in front of the camera.
However, from time to time the remote shutter release locks for too long, causing my photographs to be overexposed.
My remote shutter release is not genuine one made by Canon but by Shoot Inc. So I was wondering if the described issue is common for those chip switches and original Canon switch has no such problems?