nice how did you manage 60 secs ?have yuo a new gadget 30 secs max here you did well washed out with clouds again here

Using the Cannon EOS software on my laptop, I set the exposure time to bulb.

Once this is done, the timing functions incorporated into the software can be used.

For some reason on occasion, I have to switch the camera off and on again to get the timer icon in the software to operate, but this isn't a big issue.

I found that you need to set a total time interval of at least double the exposure time to allow the camera and software to process the imange plus a 5-10sec delay.

eg.

A 60 sec (RAW format) exposure will take about 130 sec to complete 1 cycle before the camera takes the next image.

it will not do that on my 10d when a set to bulb theres no way of stopping it not sure if you can do that with the 10d