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mm inch
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Choose type:
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Classical Cassegrain
Dall-Kirkham
Ritchey-Chrétien
Pressmann-Camichel
Stigmatic combination
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Primary mirror diameter:
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Enter field:
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(deg)
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Primary mirror focal length:
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System focal length:
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Back focal length:
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Distance secondary from system focus:
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Distance secondary from prime focus:
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Radius of curvature of secondary mirror:
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Primary mirror conic constant:
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Secondary mirror conic constant:
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