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GlennLeDrew
Pooh-Bah
Reged: 06/18/08
Posts: 1250
Loc: Ottawa, Ontario, Canada
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Donn,
The occasional doublet lens is designed to have the elements in contact at the edge. But this is only done when the radii R2 and R3 are rather different, and of course when R3 is the shorter. Looks quite possibly to be the case here...
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Home-made 11X50 right angle bino, 8.1 deg. FOV
Modified 26X100 bino, 3.5 deg. FOV
Home-made Mk II RA bino, using interchangeable objectives and eyepieces
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Mediocre minds discuss people. Good minds discuss events. Great minds discuss ideas.
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JIMZ7
sage
Reged: 10/22/05
Posts: 321
Loc: 3rd-Planet from the Sun
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What a family!!! You almost need a wide-angle lens or fish-eye camera lens to get the whole group!
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donnw
super member
Reged: 08/03/08
Posts: 166
Loc: Maryland
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Hi All:
Just a quick 'first light' report for the Goto 105:
Pulled it out for a while tonight, let it cool down and proceeded to pop in some nice Vixen .965 orthos. 6mm was a little dicey for the conditions, 9mm was great. Multiple bands on Jupiter and absolutely no color. Added a moon filter and checked out the near full moon views. Nice, sharp detail and good contrast. Moon filter out and swung around to a bright star for a quick test. Again, no color at all - like an APO ( a really long APO ;-). On either side of focus, noticed a little bit more brightness on one side of the rings than the other. The focuser is a bit loose and moving it around had a definite effect (although surprisingly, the ring spacing was quite symmetric. A little bit of tweaking on the focuser assy will be in order before the next outing for a more thorough test. Overall, most pleased :-)
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Peace & Blessings,
Donn Williams
Member - AAVSO
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Celestron EdgeHD 11 on CGE in SkyShed POD GL5
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Goto 105, Various Sears/Tasco/Selsi/Towa 60-80mm's
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mikesemmler
member
Reged: 06/01/09
Posts: 28
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Gratulation Donn for your sensationell Scope.
Michael
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