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Testing IR remotes with your camera's LV
Posted By: dosdan, 01-27-2012, 04:45 AM

My cheapie multi-camera-brand IR remote control, a "Photon" RC-4, seemed to have stopped working. I remembered that you could test any IR remote with a video camera by actually seeing the IR light, so I tried it in LiveView on a K-5 and found out that the remote has failed.

All the household electronics IR remotes I have here show purple flashing for as long as any button on the remote is pressed, as shown:

A simple tip, but it may be useful.


Last edited by dosdan; 01-27-2012 at 06:25 AM.
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01-27-2012, 10:43 AM   #2
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Dan, it could be a battery problem inside the remote. Normally they use button cells - the larger round ones. On my Pentax F remote it is very easy to change the battery. You need a zero philips screw driver to take the black screws off. The plastic cover comes off. You can see the big round button cell held down by a tiny screw. Remove it, note down the cell model number and buy one from WallMart, Target etc for $ 2 or so. Fitiing back is pretty easy. Just remember the cell polarity before removing from the remote. Good luck.
01-27-2012, 10:55 AM   #3

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Most of the cheapies will just have a slide out tray for the battery.
01-27-2012, 01:26 PM   #4
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Original Poster
Battery voltage is the first thing I tested. The button cell measured 3V. The IR remote was cheap. I'll get another one.

The cheap corded remote I've got is nice anyway. It has a mechanical latch to lock down the button which was handy on the K20D in Bulb mode. Now with the K-5 and menu option C.3.19 Remote Control in Bulb you can set 1 press to start and 1 press to stop the long exposure.

With an IR remote outdoors you've got to point at the camera. Operation with a corded remote is more straight-forward and reliable as long as you can be near the camera. I mainly use a remote for long night-time stuff.



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