Thread: 300 l/mm Objective grating trials
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  #13  
Old 26-06-2018, 08:23 AM
robin_astro
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robin_astro is offline 		 
Join Date: Jun 2009
Location: UK
Posts: 73
The optimum grating dispersion v lens focal length is an interesting one. There are a few pluses and minuses to consider.

http://www.threehillsobservatory.co....roscopy_17.htm

Cheers
Robin
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