So what do you think it is in this petzval's case? Considering there is a significant difference between a 585 and 571 sensor, I am curious what your thoughts are as to what the results are.
No thoughts, just few comments somewhere where people had issues with what we called "Petzval" scope, i think it was the Quad type, so i wasn't sure if all Petzval without calculation of back focus will natively give super stars shape with whatever sensor size being used, I have a Quintuplet, and i read someone [maybe out of thousands] didn't like it much for stars by edges, so i was thinking how he can solve that then, by using a corrector [flattener] when it is already have one integrated???