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Home > Classifieds > Astromart Classifieds > Telescope - Catadioptric > Classified #112441

For Sale: C-11 OTA <<<<<Sale Pending>>>>> [SOLD]

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I have a 1998 C-11 OTA that I need to sell to fund a large dob project. This OTA was the subject of some experimentation that I performed regarding a primary mirror lock. It has 3 - 1/4" holes drilled in the mirror cell spaced 120 degrees apart. The mirror lock system did not make it to completion so the holes are "plugged" with stainless steel pan head machine screws with a lock nut on the inside. I disassembled the scope myself and drilled the holes myself with great care and skill. I am quite good with handling delicate procedures such as diassembling an OTA and putting it back together. The optics have never been disturbed throughout their journey with me (I am the original owner). It holds collimation very well and is a good example of a properly engineered (optically and mechanically) large arpeture SCT. There is a MINOR scratch in the OTA about 5/8" long that is only visible in reflection (it is not through the paint coat). The OTA includes 7x50 finder, OEM finder bracket, 1 1/4" visual back, 1 1/4" diagonal and trunk. The 2" diagonal and 2" visual back are not included. IMO, $1,000 plus shipping and insurance is a fair price considering an adjustment for the holes. It is fully functional in all aspects. Rick Darden

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