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Where is Astigmatism ?

Started by stevencyc, 08/01/2004 11:48PM
Posted 08/01/2004 11:48PM Opening Post
Hello All,

A Mak with three optical components (corrector, primary and secondary) that have astigmatism when viewed at the eyepiece, how do one knows which optical components that contributes to this astigmatism ? This is assuming that the diagonal, eyepiece and the observer eye is free of astigmatism.

Thanks.
Steven