Planetary RGB

[jambouk]

When imaging with a mono camera and RGB filters, do others use an IR cut filter when using the RGB filters, or just the RGB filters alone and then an IR-cut mono image for luminance?

Thanks.

James

 

[AbsolutelyN]

You don't need to use IR cut together with R, G, B filters as each of those cuts the IR as they only let through specific wavelengths. 

[jambouk]

Thanks.

Mystery solved.

The RGB filters I had (£75 Baader ones) do not block IR, and in fact they all transmitted IR. So unless using with an IR-blocking filter, not a lot of use for mono planetary imaging. I'm getting the ZWO ones which do block IR.

Thanks.

James