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Get one of the TS quad APOs - faster f ratio and no mucking around with flatteners - ready to go out of the box.
Yes it will weigh more.
I have a 70 mm Photoline quad - a nice scope but it is heavy.
A Petzval is similar but typically not as fast because the original aim of the petzval was to function as a telephoto - extending the focal length, and higher f-ratio.
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