Quote:
Originally Posted by that_guy
Hi guys, just going through my images taken yesterday. I noticed one corner had badly distorted stars. Is this due to field curvature or from tilt of the focuser. The new camera (Qhy9 with 2" filterwheel) is on the heavier side that may have contributed to the tilt. Is there a solution to this without having to resort to a more expensive focuser?
I've uploaded 100% crop of the corner in question and the full image (with IIS compression) for your analysis.
Thanks
Tony
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Hi Tony,
Maybe- Is there any radial play or axial tilt/rock in the existing focuser and/or camera mount / nose piece? If so, it maybe possible to use shims to counteract the play /deflection for the purpose of testing whether this is the cause, maybe even some sort of makeshift repair or clamp to prop against deflection/movement.
Best
JA