I was happy to find this thread because I just picked up a SP-C102 locally. I know it seems that this thread is dedicated to ED and Fluorite but my new scope is neither of these. Still pretty good, I think but, still just the "Plain Jane" version. My reason for intruding is to ask about the "Newton's Rings" apparent on the objective. Attached are photos of the label and the lens. I have delved into this once in the past and, rightly or wrongly, came to the conclusion that Newton's Rings occur on some individual scopes and are not detrimental to the image and are not worth doing what is necessary to eliminate them.
Your opinions would be gratefully considered as I am a relative newcomer to astronomy.
Now that I'm into it two more questions come to mind:
1) I didn't include a photo but, my Super Polaris mount has white painted tips on the legs.
I don't remember seeing this before. Another area where I need education.
2) I have never seen a photo of the label on a ED or Fluorite C102.
Are they just like the label on my scope except saying C102ED and C102F?
I would hope to own a fluorite version in the not too distant future.
Thanks in advance for your help.