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Hi Liz
If the 350D and 400D come with some remote capture utility, then it “may” be possible to take exposures longer than 30 secs. I say MAY, because I don’t have a 350D or 400D.
However, I have a Pentax *ist DS and the 40D and both allow you to take exposures in Bulb (B) Mode for over 30 seconds.
The 40D remote capture utility, EOS Utility, allows you to program, as an example, 10 exposures of 120 sec duration at intervals of 5 minutes, with the 40D connected to the computer via the supplied USB cable.
Like I say, I just don’t know about the 350D or 400D remote software capability – maybe someone who has one can respond?
Cheers
Dennis
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