|
Dave,
I was having some issues with floaters and I think some off-axis blurring. Due to projection, it seems to highlight anything in the focal plane, i.e. dust, lint etc. Once I checked the eyepieces, and everything else - most of these floaters went away. This issue can be a problem with any eyepiece but is magnified due to projection.
The other issue - which I haven't resolved yet, is that maybe my optical axis doesn't seem to be lining up. I.e. the sun is in focus except for one side - see here in the photo, during the Venus transit - Venus seems out of focus on the outer edge. Alternatively it could be that everything is not in focus, which is also likely. Since then I haven't done very much with these eyepieces.
[Edit] Sorry that was the wrong photo, and different eyepiece. Here is the one I meant, of the sun a couple of days later. See how sharp one side of the sun is?
-John
Last edited by John0z; 20-02-2013 at 02:52 PM.
Reason: Wrong photo
|