This is a Meade 10-inch SCT that is about 6 years old, and has the multi-coated optics group. Included is: OTA, tool-free collimation knobs, aluminum corrector-cover cap, and the 3-1/2” to 2” threaded adaptor.
Optically this OTA performs well (I’ve included a web-cam image of Jupiter that I acquired with this OTA). Star test is good, focus mechanism is fine.
Here’s why I’ve priced this OTA at $575: The enhanced coating on the front of the corrector has some kind of stain/discoloration over several square inches. There seems to be no effect on image quality – it is a cosmetic blemish. But because of the blem, I’ve bargain priced this OTA.
I am asking $575 plus actual shipping (probably ~ $35 - $45 ConUS