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 Mon, Jul 1, 8:51 PM (8 days ago)
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to ceztom, tomt, me, tscrawf3, TCrawf3, kometes, rberry, 54healeyguy, bahu, jerryawilsonphd, Christopherulivo, emilanes
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My
old C8 had enough dirt and smoke residue on the corrector plate to grow
radishes, so it was time to give it a good cleaning. So I removed it
from the tube assembly and used a lot of water Dawn soap and after a bit
of soaking followed by gentle use of cotton swabs the gunk was
removed. I followed that with a liberal rinse of distilled water and a
spritzing of 90% alcohol and gentle use of canned air and dabbing with
tissue paper. In it went making sure i oriented to the position marks I
made before removal. I used the scope for Mercury viewing the last
week and noticed optical alignment was slightly off. I did the best
alignment I could do last night with it unfocused using concentric
circles with the secondary mirror. After alignment I I wanted to do a
star test but the air was too unsteady. So I used the Ronchi screen
eyepiece I had loaned to the other Mike to see what type of figure my
scope might have. It appears my old scope has reasonable optics.
Images were taken with my old iPhone.
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