View Full Version here: : Canon camera bulb extension
pjphilli
09-10-2009, 05:50 PM
Hi
I understand that a Canon 400D camera requires a 2.5mm phono plug to
RS232 extension cable to permit computer control of the bulb function.
Could anyone supply me with the pin-outs for this cable?
Cheers Peter
batema
09-10-2009, 06:06 PM
Hi Peter,
I have a 400d and I just use the EOS software that came with the camera however I just thought that maybe I can not answer your question. I can only use EOS to set the shutter to 30' than I have to maunually turn the knob. I was going to add which I will anyway a link to a programable remote that allows me to set the number of exposures so I can walk away from my set up and it will keep shooting.
http://stores.shop.ebay.com.au/dslrbaby_Remote-Control_W0QQ_fsubZ365079011QQ_sidZ8 02295041QQ_trksidZp4634Q2ec0Q2em322
Mark
Octane
09-10-2009, 07:54 PM
Peter,
I built mine using the instructions found on Michael Covington's site, here: http://www.covingtoninnovations.com/dslr/CanonRelease.html
Regards,
Humayun
pjphilli
10-10-2009, 11:26 AM
Thanks All for your prompt replies. Humayun, the Covington circuit is just what I want. I will probably build the opto isolator version to give max protection to the camera and besides I have all the bits in my electronic junk box!
Cheers Peter
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