I haven't tried any photography with my SV80 yet, but I expect it will be ok. I am certainly impressed with its lunar/planetary performance. Like you, I was amazed at the the amount of detail it shows. And a Strehl ratio of at least .95 is pretty good!
Colour correction is important to me-if I can see chromatic abberation, it really bugs me-but I cannot detect any!
I thought about selling it because its so close in aperture to the 90mm, but its just too good to let go.
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