Hi Everyone,
Thanks for posting results, I also reached out to GSO and they state the Focal Length should be 2000 mm so I am curious now as to how flat a field people are getting.
To give you an idea of my field flatness (or lack thereof) I have attached an image of it. It would seem that the 2002.25 mm I have set is not correct and I suspect that the 2000 mm is also not correct
So where to from here? Well thanks to Rick I believe the value of 1985 mm is probably more the ball park but is also dependent on the optics and each scope. I am likely faced with a lot of trial and error to get this right.
Paul, I will reach out to LucasB as suggested as any help available will welcomed to get this back to spec.
Thanks again for your posting results.
Cheers