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DIY: Make a Cable Release for your K10D
Posted By: pop4, 12-29-2007, 04:39 PM

A cable shutter release is one of those camera accessories that for me, isn't entirely necessary, but is something that may prove useful to have, e.g. for if I ever get around to taking photos of the stars. I wasn't going to fork out the money to buy one, especially since it was is something that I don't absolutely need, and being a photographic accessory, they don't exactly come cheap (but then again, what photographic accessory does?)

So, I thought about building one myself, and looked to see if there were any instructions. It turns out that a cable shutter release mechanism is actually very simple, and it wouldn't be overly difficult to build one. In fact, if you have even the slightest bit of soldering skill/electronic skill, you should have absolutely no problems with building one. And it comes cheap too. The parts, from a local electronics store, came to a total of just A$6.35, (~US$5.50).

So how do you build one?
Firstly, to read up on how a cable shutter release works: click here
And then try here and here for the instructions.

And then using the information from the sites listed above, I created this:

This is my circuit diagram. Operation is very simple. Press the blue button for AF. Press the red button for the shutter. And for bulb mode, flick the switch to open the shutter, and when I'm done with the exposure, flick it back.

These are the parts

This is the completed cable release.
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02-17-2011, 01:34 PM   #31
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this may be just what I am looking for. I am looking at putting one of my Pentax DSLR's on a big RC plane I am building, and was thinking of how I could trigger the remote somehow over great distances. I was thinking I could perhaps have a servo trip the button somehow, but someone with more electronics knowledge than me might be able to figure out how to wire it directly into the receiver on my plane then I can run the shutter from my transmitter directly.

04-13-2011, 03:55 PM   #32
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Thanks for this thread! Came home today after finding it and had to build. Made a prototype from an old hand held tape recorder remote mic. (Had a handy on/off slide switch already in it so I used that for the bulb switch) with 2 momentary switches pulled from an old computer tower reset and power switch combo. Then, as I was operating on pulling those switches I glanced over and saw the perfect enclosure. An old PS/2 mouse. : ) Finished the first one to see if it worked , which it did, then started on the second. The left click and wheel switches are what I utilized, left for af wheel for shutter. Then pulled a micro toggle from an old 2-way radio for the bulb switch. Re-used the pcb, just isolated the switches by cutting through the circuit where needed, soldered the lead directly to the switches according to the diagram, soldered a 2.5 mm on the end and done, love it! Fits the hand nicely and in the bag too. Lead is only a few feet, but if I do another I will pick up some wire from RC and put 8 or 10 feet on. Again thanks for the plan!
Attached a few photos. The last one was me playing with the bulb button, can't wait to play some more! ; )
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04-21-2011, 06:30 AM   #33
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i have a really stupid question. where do i plug this into on my pentax k10d?
04-21-2011, 04:51 PM   #34
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QuoteOriginally posted by soflniceguy Quote
i have a really stupid question. where do i plug this into on my pentax k10d?
Holding the K10D as if you were shooting, open up that cover on the left hand side of the camera. There is a series of input jacks, the top one, a round 2.5mm one, is what you're after.

Also check out p17 of your user manual for a diagram. There, it's listed as the "cable switch terminal".

10-10-2011, 11:18 AM   #35
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thanks for the nice describtion. Works great. Here is my version:
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