John modified a point-and-shoot camera to capture near infrared images. This is half the puzzle in building NDVI images for analyzing crop health.
Information on the conversion can be found here: http://www.lifepixel.com/
Good point Mark re shooting in RAW. But I think that really should be the standard if you're doing anything with aerial photography (IR or not). With storage space being so cheap it's not really a problem anymore.
Josh, what is the difference between this and a professional multispectral camera (tetracam).
I think this is going to be the first Kickstarter I ever back http://www.suasnews.com/2013/05/23042/infragram-the-infrared-photog... It has potential!
It's a Canon Powershot, I'll check the model number when i'm back at the office tomorrow.
We just did a quick conversion by pulling the IR blocking filter and using a dark blue lighting gel on the lens, not even a proper glass filter, so plenty of distortion.
See my answer above and LanMark's earlier. This is just a hack, but it's a useful image on some level ;-)
That project is what inspired us to try this!
That is why I chose them to photograph, I want to see what stress looks like.
Removing IR blocking Filters is good for Near IR lasers (780 nm) as well for ranging.
Be interesting to have some DIYers out there report on various cameras suitable for this and resulting IR usability.
A lot of the CCDs will work fairly far into the IR range and some of them are more sensitive in IR than visible.
Lots of good info about these conversions and the kickstarter Gary Mortimer mentioned at the Public Lab sites: http://publiclab.org and http://publiclaboratory.org and the site for the NIR camera: http://publiclab.org/wiki/near-infrared-camera
That's a good link Ned, I was studying their tutorials on constructing NVDI with Gimp yesterday, but ran out of time to finish putting the composite image together for this post.
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