Have you used photographic enhancer (didymium) filters for astronomy (planetary)? Greenhancers? Bluehancers?
I have used the basic didymium enhancer filter (Tiffen or Hoya) on Mars and Jupiter and it works well for me, so I am wondering if others have found it to be beneficial. I am wondering if the effect of the Greenhnacer / Bluehancer filters would be beneficial in improving the contrast visible on planets - again probably primarilly Jupiter and Mars. Please note - I am aware of the Baader moon and skyglow filter - I am really looking for inexpensive alternatives using (somewhat) exotic glass.
Thanks
To clarify - I am wondering about visually using these filters. I don't have the capacity for astrophotography and am a strictly visual observer (for now).