# multispectral multispectral

Author Comment Last activity Moderation
BettyeGagner "The differential reflection in the red and infrared (IR) bands enables you to monitor density and intensity of green vegetation growth using the sp..." | Read more » over 5 years ago
warren "Also see this page collecting cheap cameras of this type: https://publiclab.org/questions/warren/05-20-2017/cheap-lightweight-gopro-alternatives-fo..." | Read more » almost 6 years ago
warren "These or similar cameras are as low as $40 now! https://www.amazon.com/gp/aw/d/B01DG9UMS6/ref=mp_s_a_1_2?ie=UTF8&qid=1497436247&sr=8-2&..." | Read more » almost 6 years ago dbehr "Thx. @cfastie " | Read more » about 6 years ago cfastie "Trying slightly different values could yield better results in some situations. CLF_SYSCFG.TXT " | Read more » about 6 years ago dbehr "Hi, I have Mobius Infragarm cam for NDVI. I can't locate the White Balance settings for the mSetup program. Can you pls. give the values or a link..." | Read more » about 6 years ago suman "i want to buy DYI plant health analyzer filter......i tried to buy from public labs but it's already out of stock. How can i possibly buy it for in..." | Read more » over 6 years ago azaelb "Thanks warren, I got these cameras from Amazon, vendor digital_family, product ASIN B01FLVPZNY. It is now under$60. On pictures I just had some pi..." | Read more » over 6 years ago
warren "Also do you have any pics you took with the camera to share? Raw and NDVI for comparison? Thank you!!! " | Read more » over 6 years ago
warren "Wow, amazing -- do you have a link to where you can buy this camera, and any data on how much it weighs? It could be a great alternative for people..." | Read more » over 6 years ago
Matej "Cool! Thanks Jeff! This is helpful. " | Read more » almost 7 years ago
warren "What I did to compare is to calibrate on a CFL, then scan a tube fluorescent, so that the methodology for calibration is the same: https://spectra..." | Read more » almost 7 years ago
Matej "Interesting. I actually did kind of an "educated guess" calibration but I couldn't find more but one blue peak. I know that in the "usual" CFL ther..." | Read more » almost 7 years ago
warren "Actually this looks calibrated, no? " | Read more » almost 7 years ago
Matej "@warren: in response to: "Can you try re-calibrating this one, as I think it was calibrated during a brief bug (it shows being calibrated on 1/26/1..." | Read more » almost 7 years ago
Matej "@ethanbass for calibration I am not smoothing the spectra. I just thought it could be helpful when comparing them and adding them to a set. " | Read more » about 7 years ago
Matej "Hi Jeff, Thanks for the info about the bug! I Will recalibrate right away. I discussed with Gretchen and I think I will keep using this bulb since ..." | Read more » about 7 years ago
dhaffnersr "Hey Jeff, your right I just thought about it, it will calibrate, it's just you can't get a good fit. " | Read more » about 7 years ago
warren "that continuous band on the blue spectrum gives poor calibration Dave, I don't think it's quite accurate to say that they give poor calibration. T..." | Read more » about 7 years ago
warren "Can you try re-calibrating this one, as I think it was calibrated during a brief bug (it shows being calibrated on 1/26/16) which was since fixed. ..." | Read more » about 7 years ago
warren "Hi, Matej - it also looks like some of your spectra are not calibrated, or perhaps not properly? I'm seeing some not aligned. But all of them seem..." | Read more » about 7 years ago
dhaffnersr "Hello Matej! Those "humps" that you are getting from the daylight bulbs are the very reason I don't use them, that continuous band on the blue spec..." | Read more » about 7 years ago