Indeed - the filter material itself can be a little pricey - but interesting story, a Public Lab member used a DIY spectrometer<http://publiclab.org/notes/cfastie/04-20-2013/superblue>to scan the material and found a cheap theater gel with the same spectral curve. Great example of open source hardware bootstrapping :-)
the $10 reward is for a 4x4" square of the gel. Jeff On Fri, May 24, 2013 at 3:31 PM, Brian Russo <[email protected]> wrote: > That's kinda neat. > > For a bit more you can also do this to a DSLR. Not too difficult (DIY > or places will convert for a fee). Big advantage is significantly > better sensor for improved DR. > > - bri > > On 5/24/13, Jeffrey Warren <[email protected]> wrote: > > Thought folks who are familiar with balloon > > mapping<http://publiclab.org/wiki/balloon-mapping> > > in crisis areas <http://publiclab.org/wiki/gulf-coast> might enjoy > seeing > > this most recent open hardware project out of the Public Lab community, > > leveraging remote sensing technology in a local, community-based context: > > > > > http://www.kickstarter.com/projects/publiclab/infragram-the-infrared-photography-project > > > > "A simple, cheap infrared camera which can measure plant health -- for > geek > > gardeners, farmers, and open source DIY scientists." > > > > It basically images photosynthesis with some filter trickiness and post > > processing, building on satellite-based earth-observation imaging > > techniques. > > > > Jeff > > > > > -- > Brian Russo / (808) 271 4166 >
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