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Submitted By: stoffe (stoffe83)
Assigned to: Nobody/Anonymous (nobody)
Summary: bulb cable
It would be very nice for an astrophotographer to be able to control a Nikon or a Canon camera with a special "bulb cable" it is only the RTS pin in a RS232 port that need to be programmed high or low. Here is the schematic with some code examples written in basic, pretty simple.
http://www.covingtoninnovations.com/dslr/CanonRelease.html It is only to things that need to be input from the user, a way to select port and shutter time with an interval of 30 sek to 2 hours or more.
These "bulb cable" are the standards, commonly wide used.
Hello, you got lucky if your camera support it, only few of the newest
cameras does have this more then 30 seconds buld feature. My Nikon D80 does
need a bulb cable to capture more then 30 seconds controlled through the
computer. I didn't found a specific list of cameras that need this special
bulb cable but most of the DSLR from Canon and Nikon does need it. It would
be very nice with an opensource altrnative to MaximDL that costs lot of
money and does not work in Linux enviroment.