[Glitchmaker] loves photography and wrote in to tell us about his newest project. He has a Canon 1000D camera but, unfortunately, it does not have time lapse capability. So, instead of shelling out a chunk of change for a new camera [Glitchmaker] decided to make an external shutter control device that can continue to instruct the camera to take photos at predetermined intervals. He calls his project: SHTTTRRR. You didn’t think that meant something else, did you?
You can see the unassuming box above, there is just enough stuff packed in there to get the job done, nothing extra or fancy. Luckily, the Cannon camera has a remote shutter input jack that only requires connecting one pin to another in order to take a photo. Inside the box is an ATTINY45 microcontroller. It reads the button pushes from the single panel-mounted button and calculates the time between two button presses. That time between button presses determines the frequency of the photos taken. At the appropriate times, the ATTINY45 signals a transistor to connect the two appropriate pins on the camera’s remote shutter input jack. The device continues to tell the camera to take photos until it is shut off. The result is a series of time-lapse photos that was previously not possible on that camera!
This is a simple project that solves a problem and gets the job done. What’s better than that? [Glitchmaker] is proud of the SHTTTRRR he made and also learned a bunch about programming the ATTINY45 along the way. Check a video of it working after the break.
Continue reading “Full SHTTTRRR Control Lets You Take Your Time…”
For reasons we both agree with and can’t comprehend, most ‘prosumer’ SLR cameras don’t have mechanical shutter releases. Instead, IR LEDs are brought into the mix, the Canon RC-1 remote trigger being the shutter release of choice for people who didn’t choose Nikon. [Vicente] cloned the Canon RC-1, but he didn’t do it to save money; there’s a lot to learn with this project, and making his own allows him to expand it with more features in the future.
Studying the function of the Canon RC-1, [Vicente] found that some compromises needed to be made. The total power emitted by an IR LED is usually a function of its beamwidth; a smaller beamwidth means more photons reaching the IR receiver in the camera. This also means the remote must be aimed at the camera more accurately. In the end, [Vicente] decided on a higher power LED with a tighter beamwidth that’s just slightly below the optimum wavelength for the receiver. It’s all an exercise in compromise, but other components could see similar performance.
With the LED selected, [Vicente] moved on to building the actual controller. He chose an MSP430 microcontroller for its low power consumption, driving the LED with a watch battery and a transistor. Put together on a piece of protoboard, it’s actually pretty close to a TV-B-Gone. With everything soldered up, it’s good enough to trigger his camera’s shutter from about 5 meters away. Future improvements include cleaning up the code, making the timing more accurate with a crystal, and implementing low power mode on the MSP430.
When you’re driving for days on the highway, you see some interesting things. If you’re like me, you usually don’t have the time to get your camera out and snap a picture. Especially if it is just a goofy looking car, or an interesting tree or something. This hack will make it really easy to get pictures of sights on the highway by allowing you to snap a picture at the press of a button.
Continue reading “Never miss a roadside photo-op with an easy camera hack.”
[Luo] sent in a very easy way to add a remote shutter to just about any Canon Powershot. Even though it’s just a button, battery, and USB cable, we’re sure this would be a great project to teach the younglings about the power of soldering.
Some Canon Powershot digicams are impressive beasts with the ability to take time-lapse, long exposure, and high-speed photos. These cameras are generally crippled by their firmware, but by installing CHDK these features can be enabled.
[Luo] read the CHDK wiki and found the firmware has the ability to snap a picture whenever a button is pressed. All he had to do is send 5V down a USB cable. After whipping up shutter button housed in a tin of Eclipse gum and attaching a cable, [Luo] had a functional shutter.
With the CHDK firmware, you can do a lot of really interesting stuff with the old Canon camera sitting on your shelf: we’ve seen a lot of intervalometers and even a few book scanners that use a similar setup. Nice work, [Luo].