I stopped on the way home from work and took this picture tonight.
Well actually I pondered taking it, decided it was too cold, kept driving, regretted it, drove back and then stopped and took some photos.
This is one of the ones I thought came out the best. I also saved a few and assembled a HDR image from them.
I've been scouring Google and Flickr for a while reading up on DIY cable releases for Canon cameras. After much reading I came up with plans to build my own cable release for my Digital Rebel XTi.
I saw a few problems with the designs people were making online. Mainly that they used short fixed length cables. Store bought releases only have 2-3 foot of cable, and most DIY projects were also using a fixed length. I wanted to build my release to have interchangable cables. I wanted to have the option of a very long cable, just in case.
I got the following parts from Radio Shack:
2 momentary pushbutton switches.
1 push-on / push-off switch
1 3.5mm panel mount stereo jack (TRS)
1 small project enclosure
1 3.5mm to 2.5mm stereo adapter.
I installed the switches into the housing. The two on the side are autofocus and shutter control. The one on top is a click-on/click-off button for burst mode or bulb settings.
You need to wire the buttons up to the stero mini jack this way:
- Tip - Shutter buttons (each needs it's own connection, don't wire in series)
- Ring - Autofocus button
- Sleeve - Ground / Common, all the buttons need connected to this.
I had a technician at work solder this up for me because he has steadier hands than I.
Pretty much anyone with a steady hand and a soldering iron should be able to do this.
Now I can plug any stereo 1/8" (3.5mm) headphone cable into the remote and then into the adapter and connect up to the camera. This lets me switch between a 10' and 3' cable length easily. This also means replacement cables are cheap if one fails or gets torn up. I also made sure to pick buttons that are large enough that I can operate them with gloves on in cold weather.
I tested my homebrew shutter release controller tonight and took this picture.
I've been working on this remote for a while now. I took several designs and wiring diagrams I found online and built my own version, and it seems to be working out pretty well so far.
This is a 7 second exposure taken on the Bulb setting at F5.6 from a tripod.
I'll post more about how to build a remote in the near future.