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Speaking Of Spiders

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Posted by Tony Dunlap on May 28, 1998 15:21:47 UTC

: : 5)Merits and demerits of curved spiders. : No spikes but larger thickness of these tends to lower the contrast more. The thicker the obstruction, the greater the loss of contrast.

Speaking of Spiders, has anyone tried a piece of coated flat glass mounted to the end of the tube and the secondary mirror mounted to the glass? Or would the glass cause a greater loss of light than the spider?

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