Quote:
Originally Posted by Paul Haese
Funtastic resolution Peter. Individual stars can be seen right in the centre of the cluster. It looks like some slight registration misalignment on the left hand side or was there and errant sub there with a stars that are a bit eggy.
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Ta Paul.
You are indeed correct about the left-hand edge stars. I figured it was a combination of two factors, the scope was slightly out of collimation and there was tilt in the camera focal plane.....something I will totally nail down with the new 'scope...
I suppose I could have applied a local correction...but figure you might as well forget using a camera, and get the paint-brush out at that point
I also expect the Alluna to be far more forgiving of any residual alignment errors, as the 92mm diameter field corrector will deliver a much wider corrected field than the RCOS ever did, plus the Alluna uses 30% larger diameter instrument rings which are decidedly more rigid.
I must admit I'm really looking forward to its arrival
