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

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  1. J

    Telescope vs. Super-Telephoto Lens for Imaging (Astronomy)

    Ah, but I raise you the Telephoto lens Spotting/Astro scope, complete with a large Fluorite element... (Although in fairness I have a couple of AP refractors that are better - depends if you have a suitable Telephoto lens already...) Oasis EOS to M57 AD Oasis M57 -> M36.4AD New Oasis 31.7mm...
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