Question about Canon Rs-80 N3

No. According to the manufacturer, the product is only compatible with the following products:
EOS 10D, EOS 1D Mark II N, EOS 1V, EOS 20D, EOS 20Da, EOS 3, EOS 30D, EOS 40D, EOS 50D, EOS 5D, EOS 7D, EOS D30, EOS D60, EOS-1D, EOS-1D MARK II, EOS-1D Mark III, EOS-1D Mark IV, EOS-1Ds, EOS-1Ds MARK II, EOS-1Ds Mark III.

According to the manual of the EOS 600D, the following product is compatible: Canon RS-60 E3 Remote Trigger

Or the remote control: Canon RC-6 Infrared Remote Trigger

See instructions page 260/261: http://gdlp01.c-wss.com/gds...

many thanks