Unexposed E-6 slide film also has similar properties. You'd need a 120 roll for putting as a filter or 35mm for use as an on-sensor attachment.
On Fri, May 24, 2013 at 12:43 PM, Jeffrey Warren <[email protected]> wrote: > 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 >> > > > _______________________________________________ > Geowanking mailing list > [email protected] > http://geowanking.org/mailman/listinfo/geowanking_geowanking.org > >
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