Quote:
Originally Posted by Robert_T
Ving, would the best aperture mask for double splitting involve a ring on the outer edge of the mirror so you can get maximum resolution or do you just use a smaller disk mask between the spider vanes?
cheers
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Hi Rob. I'm a bit of an aperture mask nut as well

On my reflector I use the standard 3 holed (round holes) mask. Depending on what I'm looking at I will leave the 3 holes open, or I will close 1 up....or 2 for that matter, It's a variable brightness mask lol.
I have one as you describe for the refractor as well..never thought of making one like that for the reflector..