The first photograph was taken sometime in the early 1800s, and through almost two centuries of development we’ve advanced through black-and-white, the video camera, and even high-speed cameras that can take thousands of frames per second. [Mathieu Stern] took a step back from all of the technological progress of the past two hundred years, though, and found a lens for his camera hidden in the glacial ice of Iceland.
Ice in this part of the world has been purified over the course of 10,000 years, and [Mathieu] realized that with this purity the ice could be formed into a workable camera lens. The first step was to get something that could actually form the ice into the proper shape, and for that he used a modified ice ball maker that was shaped to make a lens rather than a sphere. Next, he needed an enclosure to hold the lens and attach it to his camera, which he made using a 3D printer.
For this build, the hardest part probably wasn’t making the actual equipment, but rather getting to the right place in Iceland and actually making the lenses. At room temperature the lenses could be made in around five minutes, but in Iceland it took almost 45 minutes and the first four attempts broke. The fifth one was a charm though, so after over five hours on the beach he was finally able to make some striking images with the 10,000-year-old ice lens which melted after only a minute of use. If that seems like too much work, though, you can always outfit your camera with no lens at all.
Thanks to [baldpower] for the tip!
Continue reading “10,000-Year-Old Camera Lens Takes Striking Pictures”
Taking a picture is as simple as tapping a screen. Drawing a memorable scene, even when it’s directly in front of you, is a different skill entirely. So trace it! Well, that’s kind of hard to do without appropriate preparation.
[bobsteaman]’s method is to first whip up a pantograph — it tested well with a felt marker on the end. Next, he built a camera obscura into a small wood box with a matte plexiglass top, which didn’t work quite so well. A magnifying glass above the camera’s pinhole aperture helped, but arduous testing was needed to ensure it was set at perfect position for a clear image. The matte plexiglass was also thrown out and, after some experimentation, replaced with a sheet of semi-transparent baking paper sandwiched between two pieces of clear plexiglass. The result is hard to argue with.
Continue reading “Tracing A Scene An Old-Fashioned Way”
A few gadgets around the house make for excellent display and conversation pieces, but when an artifact from the wizarding world finds its way into a muggle household? Well, you frame it.
Okay so in reality this is really an animated picture frame with a Harry Potter theme — specifically the fabulous newspaper, The Daily Prophet, from the series of novels and movies. Conceived by [Piet Rullins Jr.] after a trip to ‘The Wizarding World of Harry Potter’ attraction at Orlando Studios, he wanted an inventive way to showcase the videos of his vacation.
The seven inch display is secured inside a poster frame, surrounded by a customized front page of the wizard paper — weaving the tale of his trip — and controlled by a Raspberry Pi 3. When someone approaches, an Adafruit infrared sensor detects the movement and activates the display, shutting it off after five minutes in order to preserve the screen and save power. A USB power cable hidden inside the cabinet it’s mounted on adds to the effect of a magical periodical. What, did you think it was powered by magic too?
Continue reading “Daily Prophet Is A Magic Newspaper! (Kinda)”
Rendering something in slow-motion is an often-used technique that attempts to add some ‘wow’ or ‘cool’ factor. Seeing something out in the world move in slow motion is marginally rarer — rarer still if it’s in your own home. But do it right and that kind of novelty turns a lot of heads. Enough to go 8x on a Kickstarter goal.
Slow Dance, a picture frame ringed with strobe lights, generates the surreal effect of turning small, everyday objects into languid kinetic sculptures. It’s an intriguing example of kinetic art done in a novel way.
[Jeff Lieberman], a veteran of high-speed photography, takes advantage of ‘persistence of vision’ by synchronizing the vibrations of an object — say, a feather — with a strobe light blinking 80 times per second. An electromagnet inside the frame is used to vibrate the objects, while the strobe lights are housed inside the thick frame.
Continue reading “Slow Dance Appears To Make Time Run In Slow Motion”
The world of 3D printing is growing rapidly. Some might say it’s growing layer by layer. But there was one aspect that [Ken] wanted to improve upon, and that was in the area of 3D photos. Specifically, printing a 3D pop-up-style photograph that collapses to save space so you can easily carry it around.
It’s been possible to take 3D scans of objects and render a 3D print for a while now, but [Ken] wanted something a little more portable. His 3D pop-up photographs are similar to pop-up books for children, in that when the page is unfolded a three-dimensional shape distances itself from the background.
The process works by taking a normal 3D photo. With the help of some software, sets of points that are equidistant from the camera are grouped into layers. From there, they can be printed in the old 2-dimensional fashion and then connected to achieve the 3D effect. Using a Kinect or similar device would allow for any number of layers and ways of using this method. So we’re throwing down the gauntlet — we want to see an arms-race of pop-up photographs. Who will be the one to have the most layers, and who will find a photograph subject that makes the most sense in this medium? Remember how cool those vector-cut topographical maps were? There must be a similarly impressive application for this!
[Ken] isn’t a stranger around these parts. He was previously featured for his unique weather display and his semi-real-life Mario Kart, so be sure to check those out as well.
[Roo] was tasked with finding a better way to take corporate employee photos. The standard method was for a human resources employee to use a point and shoot camera to take a photo of the new recruits. The problem with this method is many people feel awkward trying to force a smile in front of other people. Plus, if the photo turns out poorly many people won’t ask to have it retaken so as not to feel vain or inconvenience the photographer. [Roo’s] Raspberry Pi powered photo booth solves this problem in a novel way.
The new system has the employee use their own mobile phone to connect to a website running on the Pi. When the employee tells the Pi to snap a photo, the system uses the Raspberry Pi camera module to capture an image. [Roo] actually 3D printed a custom adapter allowing him to replace the standard camera lens if desired. The photo can be displayed on an LCD screen so the user can re-take the photo if they wish.
The system is built into a custom case made from both 3D printed and laser cut parts. The front plate is a frosted white color. [Roo] placed bright white lights behind the front panel in order to act as a flash. The frosted plastic diffuses the light just enough to provide a soft white light for each photo taken. Once the photo is selected, it can then be uploaded to the company database for use with emails, badges, or whatever else.
[Roo] also mentions that the system can easily be changed to send photos via Twitter or other web applications. With that in mind, this system could be a great addition to any hackerspace or event. The code for an older version of the project can be found on the project’s github page.
Continue reading “Smile For The Raspberry Pi Powered Photo Booth”