Posts Tagged ‘battery’
There are advantages to shooting time-lapses using a cheap point-and-shoot camera — for example, if it gets stolen, you’re not out thousands of dollars — but there is one particular challenge that is difficult to overcome: battery life. If you want your creation to cover any significant period of time, you need a way to keep the camera running.
The video above shows you one way to get around this problem if you’re using a AA-powered camera: just build your own DIY battery pack. Read more…
There’s no doubt about the fact that using the camera on your shiny smartphone is killing your battery life. But up until now, it seems like the only proposed solutions have been to work on the battery itself instead of looking at the camera.
Researchers at both Microsoft and Rice University think they’ve come up with a solution that will make your gadget’s camera far more energy efficient by focusing on the camera’s sensor and the power it uses.
When Milan-based engineer and photographer Andrea Biffi needed a constant source of power for his Canon 40D in order to shoot time-lapse photos over many hours, he decided to save some money by going the DIY route. Biffi turned a defunct lithium DSLR battery into a power supply unit that can be used with everything from a wall outlet to a car battery.
You can do the same thing at home, but you’ll need a bit of engineering know-how to accomplish the hack.
Portland, Maine-based photographer Caleb Charland (whom we featured before) has a fascinating new series of science-based photos that show various alternative batteries created using things like apple trees and stacked coins. The photo above shows an experiment in which he powered a lamp using 300 apples in a Newburgh, Maine-orchard.
He spent 11 hours sticking zinc-coated galvanized nails and bare copper wires into the apples in order to generate current using the fruit. Every 10 apples provide about 5 volts. The lamp was successfully lit by the apple power, but was so dim that the photograph required a 4 hour exposure!
What if the battery in your camera could be charged in the same amount of time it takes to microwave a cup of instant noodles? It sounds crazy, but that’s what appears to be headed our way.
Researchers at the Ulsan National Institute of Science and Technology in South Korea have figured out a way to drastically cut down the time it takes to recharge a lithium-ion battery — the same kind found in most digital cameras.
If you have a Canon compact camera running the Canon Hack Development Kit (CHDK) firmware, you can create a simple shutter release cable using some cheap components. The firmware causes the camera to snap a photograph anytime 5V is sent down a USB cable connected to the camera. You can do this using a USB cable (e.g. the one that comes with your camera), 5V battery, simple push button, and some kind of housing (a metal candy tin, for example). Oh, and you’ll need to be comfortable cutting up and soldering wires. Luo Bo Te over at kisstheasphalt has written up a tutorial on how to put everything together.
If you’re a Nikon D7000, D800, D800E, or V1 owner listen up, because Nikon has issued a voluntary recall on the rechargeable Li-ion EN-EL15 battery that’s used to power those cameras. Nikon discovered an overheating issue that can deform the outside casing of the cameras (at this point there have been only 7 confirmed cases worldwide) and is offering anybody with a battery whose 9th serial number digit is either “E” or “F” a free replacement. More details on both the problem and how to get your replacement can be found in Nikon’s service advisory.
Have you ever wondered why newer Canon DSLR battery covers have a small rectangular hole punched into them? It’s more than just for style:
Take a look at the cover. Does it have a small cut-out a few millimetres in from one edge? This is not just decoration. It is designed so that you can tell at a glance which of your batteries are fully charged and which are not. The batteries that come with this cover have a blue stripe down one side of the back. When you remove a charged battery from the charger, you can attach the cover so that the blue is visible. When you remove a discharged battery from the camera, you can attach the cover so that the blue patch is not showing.
It’s a simple and useful tip that those of you who don’t read instruction manuals may have never learned.