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symbiosis

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Posts posted by symbiosis

  1. Thanks Ken, yes I found a few guides on mirror cleaning and followed those. The trickiest part was actually releasing the mirror assembly from the tube, there wasn't a guide for for my particular scope and it had a few oddities that others I looked at didn't seem to have. I recorded it so will put up a quick youtube video for anyone else wanting to do the same with my particular scope..

    I marked off the center using a (non permanent) board marker pen and then very carefully centered a ring binder circle over that, it was actually not far off perfect alignment when I put it back together so I only needed to tweak it a little.

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  2. Thanks Ken, in reply:

    1 Are you in focus? Yes

    2 Colimation is well worth doing and very easy. Might need to give it a go......

    3 Dew/misty eyepiece/main mirror = leave scope outside for longer to cool down and demist itself. None noticed

    4 Check eyepiece quality under a lamp checking for defects and dirt. EP gave good clarity in a different scope

    5 you are using the wrong eyepiece for the moon. This was a 20mm with a moon filter, also tried with a 6mm and had the same result, clear and sharp with the celestron but very washed out with the Tasco

    At the risk of being dumb, I was a bit concerned that I was trying to use a 1.25" EP in a 0.965" focuser but I think the focuser just had a 1.25 - 0.965 adapter ring in it. If a 1.25 EP fitted it, then I guess this wasn't a problem?

  3. Hi all

    I recently purchased a very cheap Tasco reflector model 302012 (D=114mm F=900mm) with a (fairly decent) EQ2 mount. The scope came with a 0.965 eyepiece fitted in the focuser. The focuser had a plastic ring that came out that appeared to be an adapter to 0.965" from 1.25" - this seemed even more likely as my 1.25" EPs fitted perfectly once I had removed it.

    However, when I tried observing the full moon using my 1.25" EP, the image lacked any real detail (compared to my super cheap Celstron 60az using the same EP).

    I'm assuming that I should get a better image from the larger Tasco than the Celestron so any ideas what could be causing this? Might it be that it should be using a 0.965 EP (not sure what using a 1.25" EP with a 0.965" focuser would do) or might it need collimation?

    Any help much appreciated

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