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Hey guys you are going to love this... an on-line focus mask generator

just grab your scissors and knife and start cutting away!


http://astrojargon.net/MaskGenerator.aspx

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Comment by Bob W on October 20, 2011 at 5:13am
there is also this to help you out also
Bahtinov Focuser Aid
Comment by Trevor Woodrow on April 2, 2011 at 4:05am
I have used this. Works like a charm. Made one for each of my scopes...hard to open. Had to download Google Chrome to be able to open and print. Otherwise, good stuff.

t

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