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ZEISS DTI thermal imaging cameras. For more discoveries at night, and during the day.

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  1. J

    Observing Jupiter with a spotting scope

    Hi, the longitudinal (or axial) CA is the one which makes the image mushy above a certain magnification, not the one showing orange/purple fringes. Those are from lateral (or transversal) CA. All telescopes suffer from varying amounts of CA, unless you look at a pure mirror telescope like a...
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