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    Problem with Celestron Ultima 80ED

    I bought this scope and am VERY frustrated that I can't find an objective filter for it. I sent an e-mail to Celestron tech support, and they responded, "We really don't know what the filter size is - somthing around 87mm, maybe?" I simply can't believe that the manufacturer of a decent...
  2. E

    Hello from Florida

    Hi folks. I'm not a dedicated birder (yet) but I enjoy wildlife photography and since birds are wildlife...:t: I have a technical question that I will try to post in the appropriate sub-forum. It's good to be here.
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