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A few years ago I had just a 10 inch and decided to downsize to something smaller and bought an ed80 refractor.
In short i was disappointed in how little I could see after being used to the views through a 10" scope, and light pollution just makes this worse. At least with a larger scope you can crank up the power before running out of light.
Luckily I kept the 10" and ended up selling the ed80, replacing it with a 5" newt on a porta alt-az mount, which serves as my travel and quick look scope.
Bottom line is i think you will be disappointed unless you can see the difference for yourself and then decide after. If space is an issue, maybe an 8" lx90 or similar might suit?
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