T-70 cable releasegreenspun.com : LUSENET : Canon FD : One Thread
I was wondering if anybody knew the pin out for the cable release on the t-70 as it looks as if it should be relatively easy to make as I have had like zero luck finding one to buy and would really like one. Does anybody have one for sale or know where to get one? Thanks!
-- Dayn Barlow (firstname.lastname@example.org), February 26, 1999
Feel free to file this under the category of "wild ass guesses." Unless I'm missing something my T70 "cable" release has no battery. It operates off the camera's batteries. Check the voltage between the contacts on the T70 body, see how much juice is going where, and you're halfway to jury-rigging a release suitable at least for home or studio use. I'll check the resistance between contacts on the release and post the numbers here. Obviously rigging a DIY release must be approached cautiously. I doubt the full 3 volts available from the camera's two AA cells are used to trigger the shutter via the cable release. Without knowing what resisters to place in line something could get fried.
-- Lex Jenkins (email@example.com), March 11, 1999.
One pin is your power source. Connecting it to pin two triggers the meter only. Connecting it to pin three trips the shutter. The real trick would be finding an effective screw-in fitting for whatever you rig up. I put together a small adapter that changes the canon fitting to a modular telephone connector, to which I can attach whatever kind of strange switch I can dream up. The modular phone stuff is light and available everywhere.
Anyway, I wouldn't bother with all that. Just go to ebay.com and search for a Canon 60T3. There's usually one for sale. about $20-30.
-- M. St. John (firstname.lastname@example.org), March 28, 1999.
At least T70 and T90 seem to use the same cable/wire release accessories as the EOS series bodies (at least some of them), so it is possible to buy new ones as well. I just bought the 60centimeter version and it seems to work fine. They are not very cheap but it is better to ask the price before you hack your own... VP
-- Vesa-Pekka Perakyla (email@example.com), April 28, 1999.