I have an EVOSTAR 80ED that was my first scope. For a doublet, it's fairly well corrected and has minimal blue fringing. These scopes aren't fast, but they are sharp. Focuser can be a bit iffy when you start putting more gear on, but if it's just an OSC, you should be good.
I've heard the 150 is awesome as well. I think these scopes are great starter scopes in general.
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