Sun filter advice

[bsshog40]

So I'm wanting to get a sun filter for my little C90 Mak. Is this one a decent filter? Solar filter

[johninderby]

Get an Astrozap or Baader solar filter with the Baader solar film. Better contrast and views than those thick polymer filters.

https://optcorp.com/pages/search-results-page?q=baader+film

[Merlin66]

+1 for the Baader solar film.

[michael.h.f.wilkinson]

Baader film for me too. Cheap and good. The only better option is a Herschel wedge, but they should ONLY be used on refractors

[bsshog40]

Thanks for the replies. Guess I'll check out one of those Baaders! 

[Louis D]

I found this article comparing the Baader film to the Thousand Oaks film.  It appears that the Baader is sharper, wider spectrum, and brighter.

I've used the Baader film for 20+ years since it was introduced.  In my 8" Dob, I find I need an IR blocking filter for long viewing sessions.  This shouldn't be an issue with a C90, though.

Comparison images:

Baader:

Thousand Oaks: