Thread: HowTo: Secret of the Hartmann Mask... Revealed!
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Old 19-09-2005, 01:10 AM
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RAJAH235
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RAJAH235 is offline 		 
Join Date: Jan 2005
Location: South Coast N.S.W.
Posts: 2,571
You found my 'secret' way of collimating eh, John?
Works very well, but you have to be fairly quick or have an assistant. L.
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