IR/UV in front of RGB Filters

[CoolhandJo (Paul)]

This might be a silly question, but is it usual to image LRGB with a IR/UV filter sitting in front of the chip for Lum, and Red, and Green, and Blue? Or is it not necessary to use an IR/UV for the RGB channels?

I use Meade RGB Filters and a Baader IR/UV.

[[1ponders] (Paul)]

Did you get a frequency response chart with your filters? That will show you the cutoff of your filters.

Interesting discussion here
http://autostarsuite.net/forums/thread/8191.aspx

Unfortunately the link they provide doesn't work.

[[1ponders] (Paul)]

Bit of info here if you scroll down a bit
http://www.astronomics.com/main/prod...ct_id/ASDSIPF2

[multiweb (Marc)]

Here's some good info about a lot of filters:
http://www.astrosurf.com/buil/filters/curves.htm

[DavidU (Dave)]

Originally Posted by multiweb

Here's some good info about a lot of filters:
http://www.astrosurf.com/buil/filters/curves.htm

Thats a great link thanks Marc