Just found this site as I was trying to see about my C90. I just sent an e-mail to Celestron. Started out that I just wanted to buy a new finderscope mount since the scope was knocked over, but when I was looking for the number they requested, I also saw that an internal part appeared to have come loose in the last years. I guess I can go ahead and take the opportunity to register my scope, 875338. It appears almost exactly like what Uranotopia has in the first page post. I've got several pics of the loose piece (sent to Celestron), but not sure how to post pics here.
Not sure if I'll have any luck, but quickly skimming the sites, it appears that in a worst case scenario, I could dismantle the scope and reattach the inner piece I'm referring to? I tried finding a parts diagram online, but no luck. I'd still need to order the originally requested finder scope mount, but that's not a stopper hopefully. If I can't find my original finder scope, what power would you all recommend? Not tied to Celestron, so anything would work.
Here's my e-mail, "Sirs:
In response to what appears to be an auto-generated reply, and to clarify, I was not originally asking for warranty or warranty claim. I was willing to pay for a new finder scope mount, I just cannot find the piece listed on the Celestron web site.
In response to your request for more information, my wife and I estimate we bought the C90 around 2000 while I was serving in the military at Fort Bragg, NC. Needless to say, after almost 20 permanent change of station moves over my career in the military, we can no longer locate any receipts and really can't tell you where or how we bought it.
Also in response to your questions, I looked through the Spotting Scope Instruction Manual, Accessory Catalog and on the case and the only numbers I could find were on the tripod mount appears to be the serial number, 875338.
While looking for the numbers, I noticed the Celestron Limited Warranty for the instrument's usable lifetime. While initially I just wanted to buy a new finder scope mount and finder scope (unable to find), when inspecting the scope looking for a number per your request, I found what appears to be a dislodged, tubular ring inside the barrel assembly. I've attached new pictures of it as it appears to have been originally glued to the back of the tube, but now you can see it is apparently stuck to the inside of the front, corrector lens. At the rear of the scope in the center, you can see what appears to be where it was originally glued when it was manufactured. So that appears to fall under the warranty. It's also noted on some of the amateur astronomer C90 sites.
With all due respect and wishing you a Merry Christmas, I await your response.
Anybody want to guess what my chances are? smile.gif I figure it all comes down to what Celestron calls "usable life". smile.gif
Edited by dannyleo, 24 December 2020 - 04:27 PM.