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6" F/5 Primary Questions:
Forum List | Follow Ups | Post Message | Back to Thread Topics | In Response To Posted by Mark Windham on October 8, 2002 16:37:59 UTC |
Hi! I have a 6" f/5 primary mirror and am just about to start buying the rest of my scope components and would like to avoid any major mistakes... From what I can gather, a 6" f/5 would normally be paired with something in the range of a 1.6" secondary... however, I know that there are MANY variables in the equation and your advice would be greatly appreciated. I've heard that 17% light blockage from the secondary mirror is optimal (not sure where I heard that), is there a method of determining the blocked light percentage?
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