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  1. P

    Baader Hyperion Mark IV zoom on Kowa 883 Prominar

    Can't vouch for either in any spotting scope. But I own an astro-modded TE11WZ (for use with 2"-telescope focusers) and have owned a Baader Mark IV Zoom. I use/used them extensively in my 8" f/4.9 Newtonian as well as various f/6 and f/7 refractors. Not much difference in edge sharpness at...