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Originally Posted by §AB
That's very strange. I think something must've been amiss with your 12". I saw all six components with my 10" GSO at 104x with direct vision. They literally jumped out at me they were that obvious. That fact that you saw em with the 8" re-inforces the theory that your 12" must have something wrong.
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I fully agree - I always saw 6 with direct vision, and it was very easy to see 5 with the 4" low down in the east a couple of days ago.
The 12" was fine on axis, but there was something amiss as the object I viewed moved across towards the exit of the field of view. The object would get slightly blurred.
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Try this: remove the primary mirror and check if the rubber clips holding it are too tight. If so, place the aluminimum plate thats ontop iof the clips under them and leave a tiny gap, enough to fit a piece of paper between the clip and the mirror face. I did this with my 10" and it seemed to improve the view.
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I don't have the scope anymore (sold it about five months ago), but I did do that. I took everything out and loosened the clips. Got it all back together and collimated to knife edge perfection. It was okay, but the blur on the right hand side of the FOV was still there.
I feel a song coming on. To all the scopes I've owned before ....
