Thread: Diy spectroscope
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Old 18-03-2013, 08:40 PM
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p1taylor
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p1taylor is offline 		 
Join Date: Jan 2008
Location: coventry uk
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Hi Ken,
The one I have is a Cosinon Auto MC F=3.5 f= 200mm, I will post a message and see if I can get a grating, trouble is OP pension dos not leave a lot of spare cash, but will get there one way or a another.

peter
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