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    Default What difference between "Schmidt-Cassegrain" and "Maksutov-Cassegrain" telescopes?



    What is the difference between "Schmidt-Cassegrain" and "Maksutov-Cassegrain" telescopes?

    What about quality of the same size? What about quality/price ratio for different sizes?

    Thanks,
    Valentin

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  2. #2
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    The difference is in the shape of the corrector plate. The Maksutov has a spherical corrector plate; the Schmidt has one that is a more complex shape. I can't really tell you what if any difference there is in performance.

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    Default

    From what I gather, Maks are easier to maintain because it does not need to be collimated like SCT's do. They are also heavier and become very expensive to make in bigger apertures, that's why you don't see any 14" Maks around. The Mak's corrector plate is also thicker, so cooling time takes longer than the SCT. Maks also usually have narrower veiws than SCT's because of the longer focal lengths like my 4SE Mak is an F/12.99 compared to my 8" SCT which is F/10, thus the Mak is better suited for planetary use. Maks are also usually more expensive on an aperture basis, but having longer focal lengths, they are more forgiving than SCT's of the eyepieces used on them.

    Best,

    Hernando

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    Large MAKS are VERY expensive! both are what is called Catadioptric scopes--- or simply "folded light" scopes. As Keith said, you can tell instantly by the CURVED front lens on the Maksutov.

    The ETX 90, and ETX 125 are both MAKS-- along with their corresponding Celestron models like this one:

    http://www.celestron.com/c3/product....D=8&ProdID=586
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