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    backyardastrokiwi's Avatar
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    Unhappy Cleaned the primary mirror, can't gain focus.



    Hey,

    I have just removed the primary mirror from my telescope and have gone through the cleaning process with cotton buds and distilled water. The mirror is now flawless again. However I can't gain focus in my telescope anymore.
    When out of focus(When the telescope was working fine) i could see the secondary mirror if I was focusing on a planet. However now it is more distorted. When I focus the planet it is just a fuzz ball with no detail.

    I have collimated it twice now as well.

    I have attached an image showing what it looked like before and now on unfocused objects.

  2. #2
    Gabby76's Avatar
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    Default Re: Cleaned the primary mirror, can't gain focus.

    The secondary is still square under the focuser?
    How were the viewing conditions for the evening?

    You need to provide a bit of information, telescope, eyepiece, collimation tools, sky conditions while viewing. All that good stuff to help us analyse the problem
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  3. #3
    Pauls72's Avatar
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    Default Re: Cleaned the primary mirror, can't gain focus.

    Quote Originally Posted by backyardastrokiwi View Post
    I have attached an image showing what it looked like before and now on unfocused objects.
    The attaching image and picturers hasn't worked for at least 8 or 9 months now.
    Mounts: EQ1, LXD55, Atlas EQ-G (one with Rowan belt mod, EQ6-Rail and one without)

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    antariksha's Avatar
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    Default Re: Cleaned the primary mirror, can't gain focus.

    To me it appears to be the collimation issue. Do you have any tools, for collimation?

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  6. #5
    backyardastrokiwi's Avatar
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    Default Re: Cleaned the primary mirror, can't gain focus.

    You were correct. Sorry it took so long to get back to you went away for a while.

 

 

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