Nice sketches Alex. Saw your thread on Cloudy and really like the 4"f5 frac sketch. 5º is a mighty impressive FOV, but I'd love to know how the Skywatcher f5 is at the Field Curvature end of the aberration scale. Can I see a bit of FC in the sketch????
Kinda of wish I still had mine, as I seem to spend more and more time looking through my 70mm f7 frac with its 2.5º FOV…..but I want more
Also like the compare with different size scopes.
Matt