infrared-conversion
infrared-conversion


Author Comment Last activity Moderation
warren "Lens separation on cheaper GoPro clones seems very easy! https://publiclab.org/notes/azaelb/12-04-2016/conversion-of-4k-sport-camera-for-ndvi-anal..." | Read more » about 5 years ago
Claytonb "@Gianni_Gadaleta - I never did get the chance to have the Komatex scanned so I haven't used it for target material. Becky Done with SABIC Polymersh..." | Read more » almost 7 years ago
Gianni_Gadaleta "Good evening @AFairbairn , I read with great interest your post because even I and my group are having the same difficulties to develop good NDVI i..." | Read more » almost 7 years ago
Caca_nkg "Hi guys... Any success with the Phantom??? " | Read more » almost 7 years ago
cfastie "I like #4 too. I don't have a good answer for the type of glue. Something thick and quick drying. It does not have to be sticky, it just has to for..." | Read more » almost 7 years ago
talha "Thank you very much for your quick and informative answer, Mr. Chris. Among those choices, which one do you suggest? To me, #4 looks ideal (light c..." | Read more » almost 7 years ago
cfastie "The new filter can be put several different places: stick it on the front of the lens. Build a frame to hold it in front of the lens: https://pub..." | Read more » almost 7 years ago
talha "I'm getting crazy, there is massive amount of talk about mobius conversions but there is no single guidance for converting the mobius for ndvi. I'v..." | Read more » almost 7 years ago
Matthew318 "Using a heat gun allowed a clean removal of the filter, much easier than smashing. Would recommend just getting a $20 heat gun from home depot. " | Read more » almost 7 years ago
Claytonb "@AFairbairn - I spent quite some time searching for reliable and cheap target material for calibrations. I spoke with someone who scanned Rustoleum..." | Read more » about 7 years ago
cfastie "Yes I have seen Valspar in the US for many years, and Rustoleum is a big brand here. Maybe there is some international brand of art supplies that m..." | Read more » about 7 years ago
AFairbairn "Good points. I am checking if my University has a spectrometer, I do not think my department does, however our geology people may have one. Waiting..." | Read more » about 7 years ago
cfastie "Any place that sells paint has paint color chips, but these are too small to be useful as targets. But fancy paint stores have huge color samples. ..." | Read more » about 7 years ago
cfastie "That's a really relevant article. They scale the graphs relative to a standard, so 100% is actually 20% reflectance. That means 25% reflectance of ..." | Read more » about 7 years ago
AFairbairn "Chris, You are probably correct about the foil being a poor material because of how shiny it is, had not really considered that. I came across thi..." | Read more » about 7 years ago
cfastie "ISO 100, 1/320 shutter speed That is much better than I thought would be possible. I don't know how those skinny little bands provide enough light..." | Read more » about 7 years ago
AFairbairn "Jut did a really crude test, the image displays as it should, green in the cracks, green algae or whatever it is on the fence. The small panel in f..." | Read more » about 7 years ago
AFairbairn "Chris, Thank you again for all the great information. I would assume the filter you found on PeauProductions website is the one in the lens I purch..." | Read more » about 7 years ago
cfastie "Ned listed some resources of spectral reflectance data of common things in this note: https://publiclab.org/notes/nedhorning/11-01-2013/why-a-red-f..." | Read more » about 7 years ago
cfastie "PeauProductions has this filter here: This must be a dichroic filter. The narrow bands could produce good results. We don't know how much cross ..." | Read more » about 7 years ago
AFairbairn "Chris, Thank you for your comments. I realize I should have provided a bit more information. Unfortunately a multispectral imager was not in my bu..." | Read more » about 7 years ago
cfastie "It would be good to know something about the camera and filter you are using. Do you have a spectral curve for the filter? How is the camera white ..." | Read more » about 7 years ago
Monoxyde "Thank you, I thought, that by offering to plugin a VIS photo plus a NIR photo, Shooting by two identical cameras with the same parameters ISO etc ...." | Read more » over 7 years ago
cfastie "I am not sure what your question is. You could use the two-camera feature of the plugin but give it the same Wratten 25 photo for both the VIS and ..." | Read more » over 7 years ago