|Nov 24, 2012, 04:40 AM|
IR filter comparison
That was amusing. The $30 filter either has a wider pass band or less attenuation than the floppy disk. You can layer the filter or just whack a single floppy disk layer on. The camera lenses have a finite number of filter swaps before their focus has to be redone.
The guy mentioned the floppy disk was merely attenuating the entire spectrum instead of selecting for IR, while the $30 filter was selecting for IR. If that was true, a bright white LED would show through the floppy disk, but it doesn't. Only a red LED shows.
Also, looking through the floppy & the $30 filter with the naked eye shows the same pass band, with slightly more light passed through the $30 filter.
|Category||Thread||Thread Starter||Forum||Replies||Last Post|
|Discussion||2100-2200mAh 3S Lipoly IR Comparison||mrforsyth||Batteries and Chargers||48||Nov 23, 2012 02:41 PM|
|Sold||IR (infrared) Cut Filters for Cameras||rbcodell||FPV Equipment (FS/W)||4||Jul 22, 2012 10:28 AM|
|For Sale||IR cut filters for cameras||rbcodell||FPV Equipment (FS/W)||18||Jun 15, 2012 08:59 PM|
|Help!||Where to get an IR filter?||lovegroove||FPV Talk||8||Mar 28, 2010 03:32 PM|
|Help!||Need lens with ir cut filter||tigar||Aerial Photography||4||Jan 31, 2010 07:32 PM|