Kirsty over at kootoyoo transformed her old Cosina CT-2 into a neat desk lamp that emits light from inside the lens. The legs on the tripod can be adjusted, so it can be used as a floor lamp as well. It’d be awesome if she could make it so adjusting the aperture on the lens would change the brightness of the light. Kirsty is currently writing a tutorial that’ll teach you how to make your own — it’ll go on sale starting next week.
According to the smart folks over at MIT, this video shows footage that was captured at an unbelievable one trillion frames per second. It appears to show some kind of light pulse traveling through some kind of object. Here’s a confusing explanation found on the project’s website:
We use a pico-second accurate detector (single pixel). Another option is a special camera called a streak camera that behaves like an oscilloscope with corresponding trigger and deflection of beams. A light pulse enters the instrument through a narrow slit along one direction. It is then deflected in the perpendicular direction so that photons that arrive first hit the detector at a different position compared to photons that arrive later. The resulting image forms a “streak” of light. Streak cameras are often used in chemistry or biology to observe milimeter sized objects but rarely for free space imaging.
In November 2010, we reported that MIT scientists were working on a camera that would be able to see around corners using echos of light. Well, this is that camera. Insane.
Here’s a mind-bending video in which someone created the famous checker shadow illusion in real life. The optical illusion takes advantage of the way our brains process lighting and shadows.
As with many so-called illusions, this effect really demonstrates the success rather than the failure of the visual system. The visual system is not very good at being a physical light meter, but that is not its purpose. The important task is to break the image information down into meaningful components, and thereby perceive the nature of the objects in view. [#]
Interesting huh? Our eyes aren’t very good as a light meters, since they’re easily deceived by context. Read the rest of this entry »
The Coleman LED Quad Lantern is an area lantern that features four detachable LED panels that function as individual lights, with each one containing six LEDs, a handle, and a rechargeable battery. While it’s designed for outdoor use (e.g. camping), it can also be used as a cheap solution for lighting your photos on the go. Read the rest of this entry »
Flickr user Steve Kushnir came up with this neat idea of building a cheap DIY diffuser using a Pringles can, two layers of paper towels, and some rubber bands. He attached it to his Nikon D5000′s popup flash and uses it for macro photographs of creepy crawlies. Read the rest of this entry »
IT consultant and photo enthusiast Viktor Takacs didn’t have much success when he tried capturing lightning on camera, so he decided to build this fancy do-it-yourself trigger (which he named “Zeus”) that automatically snaps a photo whenever the photodiode detects a flash of lightning. He even built a knob into the device that can be used to adjust sensitivity. The demo above shows the trigger reacting to manually triggered flashes from a strobe.
Takacs has a detailed post that walks through how he created the device. You can also email him for the code used by the microcontroller.
If Doctor Octopus were to design a DIY flash accessory, it might look a little something like this. German microbiologist Marcell Nikolausz has been experimenting with using fiber optics to split a single flash unit’s light into multiple light sources. Optical fibers are threaded through Gorillapod-style Loc-Line channels, allowing flexible and stable positioning of the light sources. Each individual light source can be controlled using various modifiers (e.g. diffusers, gels, etc..), changing their quality and intensity.
For some sample photographs taken with this contraption, check out this set of photos. You can also learn more about Nikolausz’s experimentation on his blog.
I had some stuff lying around as well as saw some parts as I was out and thought this would be fun to make. I have around $20 invested in parts. On eBay I saw ring lights for anywhere around $40 on up, so this will save you money and it was fun to make. Read the rest of this entry »
SunCalc is a super-simple web app created with Google Maps and Javascript that helps you determine the best time to shoot depending on the quality of light you want in your photos.
You can see sun positions at sunrise, specified time and sunset. The thin orange curve is the current sun trajectory, and the yellow area around is the variation of sun trajectories during the year. The closer a point is to the center, the higher is the sun above the horizon. The colors on the time slider above show sunlight coverage during the day.
This is one of the most creative examples of light painting we’ve seen — Flickr user Janne Parviainen created this unique light painting photograph to show a skeleton jumping out of a body. It’s straight from the camera without any Photoshop trickery.
