I just picked up this IR filter on eBay for 99 cents plus $7 shipping. The seller (not me) has more. Unfortunately, it will take 15-20 days to arrive from China.
let us know how it works i’m a little concerned that it might pass all light after 850nm… that would allow the projector to create a bigger hot spot than one with a 10nm or 40nm range.
let us know how it works i’m a little concerned that it might pass all light after 850nm… that would allow the projector to create a bigger hot spot than one with a 10nm or 40nm range.
I’m using an LED display instead of a projector, but I will give a review once it arrives.
UPDATE: Here is my review. It was a waste of money.