I recently ordered a couple of Raspberry PI NoIR V2 cameras from Robotshop. They shipped with a small square of blueish plastic which I presume to be some sort of filter. Can you tell me what this plastic square is?
[size=2][font=Arial]OK, I’ll answer my own question.[/font][/size]
[size=2][font=Arial][/font][/size]
[size=2][font=Arial]The blue filter is most likely [highlight=#ffffff]Roscolux #2007 Storaro Blue which blocks red and green light but allows infrared light to pass so you end up with the following light on the three channels:[/highlight][/font][/size]
[size=2][font=Arial][highlight=#ffffff]R: IR only
G: IR only
B: IR + blue light[/highlight][/font][/size]
[size=2][font=Arial]The purpose is to assess plant health.[/font][/size]
[size=2][font=Arial][/font][/size]
[size=2][font=Arial]References:[/font][/size]
[size=2][font=Arial]raspberrypi.org/forums/viewtopic.php?f=43&t=137403[/font][/size]
[size=2][font=Arial]https://www.raspberrypi.org/blog/whats-that-blue-thing-doing-here/[/font][/size]
[size=2][font=Arial][/font][/size]
[size=2][font=Arial]Transmission Spectra:[/font][/size]
[size=2][font=Arial]shop.vls.com/assets/images/ItemImages/Rosco/Roscolux/R2007-Transmission.jpg[/font][/size]
[size=2][font=Arial]publiclab.org/notes/cfastie/04-20-2013/superblue[/font][/size]
[size=2][font=Arial][/font][/size]
[size=2][font=Arial]Infragram is an [highlight=#ffffff]open source multispectral camera platform for measuring plant health:[/highlight][/font][/size]
[size=2][font=Arial]publiclab.org/wiki/infragram[/font][/size]
[size=2][font=Arial][/font][/size]
[size=2][font=Arial]If someone could confirm this is what the blue filter actually is that would be appreciated.[/font][/size]