Quote:
Originally Posted by TrevorW
Houghy
I noticed the ED80 one has signifcantly smaller slits than the one I made up by rescaling your previous post for the 100ed, will this make much difference
Cheers
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I just followed the formulae and the assumptions - it was either a 5 or 6mm spacing for a 80mm dia and a 600mm focal length
the online mask programme did the rest
i am yet to make and test - but i have printed it
