Moving up to a 9.25"

Was wondering if anyone who has owned the venerable C8 and has move up in aperture to the 9.25" could tell me the advantage of the 1.25" addition? Subtle view inhancement? more light gathering should be a plus... waiting to get my new scope, your input would be interesting to see, thank you, John M

I found it to be a very noticable difference. The 9.25 has a longer FL primary and a touch flatter field. The 9.25 is my favorite in the current stable of Celestron OTA's....

I moved from a C8 to a 9.25 last year. That additional 1.25 inches in aperture is certainly noticeable at the eyepiece in terms of light gathering. It certainly brought out features in the Orion Nebula I had never seen before. In fact, it looked 3 dimentional. It also gave me a clear view of the view the supernova that was seen in M51 last summer. I first had to have someone else show me thru an 18 in Dob at a star party, but then I had no trouble finding it.

I have not had a chance yet to do side by side comparison for planetary study, but work has it that the 9.25 views remarkable views of the planets. As you probably know, the 9.25 has a longer focal length compared to the other Celestron SCT's. My understanding that the secondary is carefully matched to exploit this feature and provide better resolution.

Perhaps you will have the opportunity to do your own comparison. When do you expect to get yours?

Rey

Make sure you check it out real good. I'm on my second 9.25 (new) and sent back the first for replacement. The first one had bad astigmatism and Celestron said the secondary was over tightened causing this. I never touched the secondary and the interferometric test we ran on the scope showed something different with the primary being bad.

Look into the baffle tube to make sure it's not full of grease. Also look hard at the paint on the inside tube surface. Be real hard on them for workmanship. You paid good money for this scope so make sure it's not a blem.

My second scope is light years better than the first. The first scope should never have left the plant. Still, you need to get rid of the secondary screws right away. The secondary mirror is real susceptable to over tightening and you can induce astigmatism. I bought McMaster Carr screws.