I recently got something like this for my 350d
http://cgi.ebay.co.uk/Timer-Remote-...ashUnits_JN&hash=item230da64f1f#ht_3034wt_905
(mine's not quite the same, there's loads of HK knock offs if you look on ebay)
I can just use it as a 'bulb' remote without batteries. i.e. press the button to take the pic, or press and slide to lock button (with camera shutter speed set to bulb) to take long exposure.
with batteries, I can set timed, or repeat exposures. Have control over the time to take the first shot, duration of exposure, interval between exposures, and number of shots.
So, it pretty much covers anything you'd want to do really. Screen lights up too in the dark
Downside of my one is it doesn't have an on/off switch, have to take the batteries out... Bit retarded.
Still, it beats spending £120 on the canon version, mine was £15 and it really doesn't feel like cheap tat. Give it a go
