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Originally Posted by matt
Thanks guys
Now, one last question:
Where do I find the courage/faith to put my eye up to the eyepiece with the scope pointing directly at the sun, even with the filter in place?  |
Not a bad question Matt, not a bad question.....
When I first fitted and used the Baader 9.25 filter on the C9.25, my rational mind understood that the incident light per unit area would be the same as that of my Vixen 4” refractor with its 4” dia Baader Film Solar Filter.
But, my irrational mind was mildly concerned about getting blasted by the huge differential in light gathering capability of the C9.25. Πr2 gives a ratio of (2)2 = 4, versus (4.6)2 = 21 units of incident light for the Vixen 4” versus the Celestron C9.25, a factor of x5.
The end result was equivalent!
Cheers
Dennis
PS - (2)2 is 2 to the power 2; superscript appears not to work?