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I also own the 42 mm 2inch superview. In my 8 inch F6 it holds very good images across the field. Too fix the aborations with the 20 @15mm versions i use the exelent 2 inch GSO ED barlow. The best and cheapest way too solve astigmatism in below F/8 newtonians. If you start off observing with the barlow and the 42mm now a 21mm 65+ field o.v.. That is still a good low power.
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