nrg
nrg


Author Comment Last activity Moderation
Tbtouaki "Hi I have tried several white balance options before, base on what I've read. On this pics the settings were exactly the same as the maxmax camera...." | Read more » over 9 years ago
cfastie "Hi Rita, Your photo above (NIR1_Red3_b.jpg) will not produce very good NDVI. Most of the pixels of plants have the same value in each of the three ..." | Read more » over 9 years ago
Tbtouaki "Hi I currently have a modified canon (IR block removed) with a wratten 25A Red filter. My pictures are really nice looking but I have big problems ..." | Read more » over 9 years ago
cfastie "Hi Giovanni, I posted a response at the plots-infrared Google group: https://groups.google.com/forum/#!topic/plots-infrared/l_dZKqFLGRE Chris " | Read more » almost 10 years ago
Giovanni1983 "Hi cfastie, I'm newbie here so I hope my comment will be soon read, even if posted on an old discussion. I also apologize in advance for all the la..." | Read more » almost 10 years ago
cfastie "Bob, this is a great idea. A secret admirer sent me one of these and I was very excited. I didn't know that any mortal could order them for only $3..." | Read more » almost 10 years ago
bobmathieson "anyone tried the Rosco sample book... only $3.95 from adorama. The swatches will not be big enough for front lens filters on SLRs but easily big en..." | Read more » almost 10 years ago
aguchosolano "Thanks! " | Read more » almost 10 years ago
natalie "Yes that's correct. We have about 100 of the Infrablu filters left. After those are gone, all the new Infragrams have one each of #74, and #19. " | Read more » almost 10 years ago
warren "Hi, aguchosolano - the Public Lab store ships internationally and will send Rosco #74 or #2007. I believe they're going to start shipping #19 as we..." | Read more » almost 10 years ago
aguchosolano "Thanks cfastie! I am from Argentina, so I will try to contact providers that could send the filters to my country. " | Read more » almost 10 years ago
cfastie "Theatrical gels are a good substitute for more precise filters. Rosco #19 "Fire" behaves much like Wratten 25A and costs $7.00 for a huge (20x24") ..." | Read more » almost 10 years ago
aguchosolano "Hello! Is there any "easy to find" material that I could use to take some pictures and calculate the NDVI? I mean, before buying expensive filters ..." | Read more » almost 10 years ago
cfastie "@camilochiang, Yes, you are correct that with a blue Rosco filter, the photo captured by the converted camera is (more or less) NGB. I think the di..." | Read more » about 10 years ago
camilochiang "Hi cfastie! I really think that your work is pretty awesome and for that im trying to do some experiments with the NoIR camara and your "Rosco filt..." | Read more » about 10 years ago
eustatic "Source images: https://drive.google.com/folderview?id=0B32DNGN8pX_XNHNyQ2NuMnlqS2s&usp=sharing " | Read more » about 10 years ago
eustatic " " | Read more » about 10 years ago
eustatic " " | Read more » about 10 years ago
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eustatic "The Set of Four shows land building, and then a HUGE scouring and re-deposition in step 3, then more scouring and new channels in step 4 2005 2008..." | Read more » about 10 years ago
eustatic "no 2007 no 2010 --water was so full of sediment that it's only a big glare " | Read more » about 10 years ago
eustatic " " | Read more » about 10 years ago
eustatic "there's also new channels which are built much more visible in infrared photography " | Read more » about 10 years ago