IR/UV in front of RGB Filters

[CoolhandJo]

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]]

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]]

Bit of info here if you scroll down a bit
http://www.astronomics.com/main/product.asp/catalog_name/Astronomics/category_name/01TJCLLJG0979HL2379DRN4HC6/product_id/ASDSIPF2

[multiweb]

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

[DavidU]

Thats a great link thanks Marc