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DIY Time Lapse Photography

Feb 6, 2008 by Udi Tirosh Add Comment

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If you’re on the PhotoJoJo mails, you must have gotten that awesome time lapse bit. On that post they recommend the Cannon TC80N3 – a round 100 dollars device that give you the ability to take time lapse images. (It is called Intervalometer, but I can’t even say it, let alone write it and feel good about myself).

(RSS readers, Grab the video here)

The good guys at the DIYP Instructables group have done it again. You may remember this group from the Minty Strobe, A Great Way to Build a Ringlight and many more.

Chris Thompson came up with a cheap and fun Time Lapse Photography project. If you build one of those please leave a comment here.

Here is how it goes:

Step 1 – Planning, Schematic, Materials

Below is a schematic that I made with free schematic software from ExpressPCB. You can also download the .sch file if you want to edit it. Here’s what this circuit will do. When you turn it on, the camera will get a false signal and take a picture. Then the big capacitor will slowly fill with charge while the green LED is on. How slowly is chosen by the variable resistor. When the cap discharges, the 555 outputs a signal to the transistor which connects the shutter control to ground. The red LED light up and the camera takes a picture Repeat.

There are also buttons to use the box as a remote shutter release when the circuit is off.

As you can see you need some stuff. Here’s a list:

Materials
Resistors: 100k, 470k, 33k, and one 1M variable
Capacitors: 220µF, 0.1µF
LED’s: Green, Red
Transistors: NPN-type switching
555 IC timer chip
IC holder socket (to switch out a bad chip)
Protoboard and then later a Radioshack IC PC Board
9V battery
On/Off switch
Momentary buttons,
Battery clip
For Pentax DSLRs, Canon Rebel’s, and maybe some others:
Cell phone headset with 3/32″ 3 conductor plug (make sure it works, but go cheap)
Extra wires
Project box
Soldering and wire stripping tools and such

Cost:
555IC: $1.69
IC PC Board: $2.49
Handsfree headset kit: ~$5
Other bits and bobs: ~$10
So it all can be had for under $20 and some effort.

time_lapse_1.jpg

Step 2 – Prototyping

This is where you need a protoboard (breadboard) Michelle hooked me up with one and I’m thankful for it. The plugging in of things shouldn’t be hard if you know how a protoboard works. If not go here.

The tricky part here is attaching the plug for the camera. When you crack open the microphone on your headset, you should see a tiny board like the one below. Your model may vary, but they usually have 3 wires. Those wires control the shutter and focus on your camera. Plug it in to your camera to find out which one is ground, which is focus, and which is shutter. This will be important later, so mark then, or write down which color is which.

When it’s time to attach the headset wires to the board, you’re going to need to attach them to some stronger wire. If they came coated with blue or red, they will be hard to solder, but persevere with lots of heat, abrasion, and patience and they will connect. Double check the wires work as expected with your camera.

time_lapse_2b.jpg
Red: Focus; White: Shutter; Bare copper and blue: Ground

time_lapse_2a.jpg

Step 3 – Testing

Before you go a ruin a perfectly good board (like I did) test it out.

The set of resistors and capacitors in this set up can provide an interval of 30s to almost 2m depending on where the variable resistor is turned to.

Set up your camera and prototype and shoot some time lapse. Keep in mind that a power adapter for your camera will be a big help in the future when you want to capture a whole day in time lapse, but batteries will work for now.

Below is my first attempt with the prototype.

Step 4 – Final build

Here you will make your awesome portable intervalometer. The radioshack IC board is perfect because it’s already spaced out for an IC and has lots of copper solder points. I included a plan to fit the schematic onto this particular board. Connect the 9V and Ground anywhere they are marked.

The buttons are attached to the shutter and focus for some added functionality.

Then you need to drill some holes, solder some wires, and close it up tight.

Easier said then done I know, so here are some tips:

  • Draw lines on the non-copper side of the board so you can easily connect things correctly
  • Place your components on the non-copper side so your leads will be easy to solder.
  • Make sure everything fits before you drill and wire it up.
    Tie a knot in the headset cord so you can keep it anchored inside your box.
  • Use shrink tube and/or tape to over exposed wires
  • Use as little wire inside as you can stand. It gets real crowded in there.

time_lapse_4f.jpg

time_lapse_4a.jpg

time_lapse_4b.jpg
Green lines indicate copper circuits on the other side

time_lapse_4d.jpg

Step 5 – Final test and limitations

See the video on the top to get the idea.

Ice melting is boring, so I made sure it was a quick frame rate.
What can you use this for?

Limitations

Ok, so you get what you pay for sometimes. If you went with a manufactured intervalometer, you would get a accurate interval setting.

This isn’t quite so accurate unless you put a knob on it or something.

There is also another slight problem. The camera counts away or a desired length, the “off” time, and then fires off the shutter, the “on” time. It seems that this “on” time can sometimes be too short for the camera to register. Because of this, it sometimes misses pictures. As long as this happens not too often, no big deal I guess. There has to be a solution to this in the circuit that can extend the output pulse, but it’s way over my head. I welcome your help on this problem.

Also the buttons don’t work while the circuit is on. It would be nice to focus or take extra pictures while the timer is running. Any ideas on that are welcome too.

More Awesome Electronics:
– Release Cable for Canon DSLRs
– Home-made Power Pack Flashes
– High Speed Photography at Home
– Very Cool Optical Slave Unit

FIND THIS INTERESTING? SHARE IT WITH YOUR FRIENDS!

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Filed Under: Tutorials Tagged With: DIY Photography & Studio, Electronics, instractables, misc and gear, Photography Projects

Udi Tirosh: from diyphotography.net

About Udi Tirosh

Udi Tirosh is an entrepreneur, photography inventor, journalist, educator, and writer based in Israel. With over 25 years of experience in the photo-video industry, Udi has built and sold several photography-related brands. Udi has a double degree in mass media communications and computer science.

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Udi Tirosh: from diyphotography.netUdi Tirosh is an entrepreneur, photography inventor, journalist, educator, and writer based in Israel. With over 25 years of experience in the photo-video industry, Udi has built and sold several photography-related brands. Udi has a double degree in mass media communications and computer science.

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