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    There are three primary types of optical telescope: refractors, which use lenses (); reflectors, which use mirrors ( Telescoape - Alte The Maksutov (also called a Mak) is a catadioptric telescope design that combines a spherical mirror with a weakly negative meniscus lens in a design that takes advantage of all the surfaces being nearly ...

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    There are three primary types of optical telescope: refractors, which use lenses (); reflectors, which use mirrors ( Telescoape - Alte The Maksutov (also called a Mak) is a catadioptric telescope design that combines a spherical mirror with a weakly negative meniscus lens in a design that takes advantage of all the surfaces being nearly ...

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  • 22nd Congress of the International Commission for

    Characterization of the optical sub-system in an advanced prototype of a new acousto-optical spectrometer for the Mexican Large Millimeter Telescope Author(s): Alexandre S. Shcherbakov; Daniel Sanchez Lucero; Alexander Laskin

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    2004-10-31 · I just happened to be in the middle of a system involving a commercially produced 15-cm f/6.68 cemented doublet (1000mm FL), for which I have the prescription. The lens isn't much good by telescope standards, having about a half-wave of spherical aberration. Since this lens is sitting in my other computer, I tried a few things:

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  • I am forming an e-mail list on the subject of binoculars ...

    2004-10-31 · I just happened to be in the middle of a system involving a commercially produced 15-cm f/6.68 cemented doublet (1000mm FL), for which I have the prescription. The lens isn't much good by telescope standards, having about a half-wave of spherical aberration. Since this lens is sitting in my other computer, I tried a few things:

    Get Price
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    2014-9-1 · 1. (50 points)The textarea shown to the left is named ta in a form named f1.It contains the top 10,000 passwords in order of frequency of use -- each followed by a comma (except the last one). When the 'Execute p1' button is clicked the javascript function p1 is executed. This function:

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