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Forum: Pentax Camera and Field Accessories
05-31-2011, 06:32 PM
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I'm headed out to the desert next week, and one of my goals is to photograph a time lapse of the night sky. For whatever reason, Hoya chose not to bless us with a built in interval timer on the K-x, nor a wired remote port. They did give us a single shot infrared remote, and that was enough.
Reverse engineering their remote protocol, I programmed a little chip to pretend it's a "Remote F" and trigger the shutter remotely. A single button programs in any interval from 1/2 second to 59 seconds. On two AA batteries, I expect the timer to have a runtime of weeks, but that's untested as of yet.
I have a more detailed write-up here:
justDIY Project Log Pentax IR Interval Timer
and this is the finished project:
So far I've tested it out twice, first for 30 min and ~90 exposures, the second for 7 hours and 800+ exposures ... this video is from the short test:
You Tube
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src="https://www.youtube.com/embed/mt0pTMDCKvI?controls=1" allowfullscreen>
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Any thoughts or feedback?
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