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Thread: eyepieces.

  1. #1
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    Default eyepieces.



    Hi i am new to the forum,and just getting started into astronomy,i have bought my first telescope a celestron astromaster 130eq,this came with a 20mm erecting lens and a 10mm lens,both are able to give pretty good views of jupiter and its moons,but can anyone advise me of the best eyepieces to get to improve views by enlarging image without losing clarity.

    Many thanks.

    toonboy1

  2. #2
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    Default

    To be honest your probably real close with the 10mm you have. Issue is you start to lose clarity really fast when you hit the limits of the scope.
    Gordon
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    Explore Scientific ED80CF,
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  4. #3
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    Default

    i agree with ghswen, the scope states that the highest usefull mag is 307x. lets break it here. on any given night with extremely good seeing you will never reach that high,

    i would say the highest point you would hit is around 30x per inch=150x. and at 40x per inch you could reach 200x but that as to be in very good conditions.

    but you can bring it up to 150x no problem aether using a 5mm eyepiece which would give you 130x. but if you use your 10mm with a 3 x Barlow you can reach 195x you would be over the limit but you could get away with it.
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    Default

    Just to reiterate!

    As Ozz says: "very good conditions."

    This will NOT be most nights.
    Gordon
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    Default

    My advice in addition to what the other guys have said, is to buy nothing right now. You just got a new telescope with a couple eyepieces. Use those for a while. After a bit you will understand how magnification and telescopes actually work. You will then be better equipped to spend your astrobucks.

    I see too many people chomping at the bits to buy accessories for their new telescope, and wind up buying stuff they didnt need or want. Wait till you know what and why you need it.

    A telescope's primary job is to gather light, not to magnify an image. Magnification is done at the eyepiece level. If you have a crisp image at 30x but a fuzzy image at 80x then magnifying it even more will give you a bigger fuzzier image. Take your time and learn how the equipment you have now actually works. Trust me, you will find plenty of new toys you will want to add to your kit, but if you are patient and take time to learn how this stuff actually works, you will have a kit full of useful stuff. Don't be in a hurry, that is when we make mistakes with our astrobucks.

    Clear skies to ya
    Jim
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    Now where did I put that clear sky button!

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    Default eyepieces.

    Thanks for that piece of advice Jim,you are absolutely right,i need to find my feet first (or stars)before jumping in feet first.

    Toonboy1

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    Quote Originally Posted by jimt View Post
    You will then be better equipped to spend your astrobucks. Jim
    how does one acquire astrobucks

    Celestron C9.25 moonlte CS, explore scientific AR102, Skywatcher mak102mm, Orion short 80mm, Celestron Cg5, Canon t3, Philips spc900nc, dbk21au618 ,ZWO ASI224MC

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    Default astrobucks

    Do a moon landing!!

 

 

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