Thread: Aperture Masks
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Old 05-12-2005, 04:54 PM
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Merlin66 (Ken)
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Join Date: Oct 2005
Location: Junortoun Vic
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Focal reducers on Newts

Focal reducers can be used on any telescope configuration. Just depends on getting the lens ( an old bino objective works well!!) into the correct position. This is obviously easier on the SC where the main mirror moves to give more back focal length. Think of it as a "positive barlow lens"
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