Hi there,i am using 350D now,but still takda money to buy flashgun yet,but i have a old flahgun for SLR camera(film
) that cant adjust anything unlike canon speedlite those.....i wanna ask that if i use that flashgun,would it harm my camera?? cause it can function well.........thanks

Old flashes won't harm the camera. I've used myjunk's old speedlight too. Ancient!

Hi. what's ur flash brand/model? If its really2 old/not designed for newer slr/dslrs, u have to make sure the flash's trigger voltage is safe for ur 350d.
to make sure, check this site:
http://www.botzilla.com/photo/strobeVolts.html

gud luck!

oh ya, just to add, even tho u can use the flash on ur eos (even if the trigger voltage are high rated for ur eos),in the long term, it will damage ur system.. so, do make sure the triggr voltage is safe.

mine is londa RX-302.......i think havent heard of this brand before??
mengsuan,what brand u using??

woo.. londa? nvr heard of it b4. i dont think it even listed in the links i gave u.
anyway, u might need to find out how high is the trigger volt for that flash. as mentioned in the web, eos only tolerate up to 6V, and maaayyybee abit until 24V.. more than that, might fry ur circuit.

here is the photo of it:

I'm using Canon 580EXII speedlite. The old flash that I've played with is shown above.