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Thanks Gents,
Greg - the back focus specs of the TCC are +/- 2.5mm. I’m within 0.5mm of the recommended figure, depending where the tilt corrector is within its range of movement. Analysis of tilt in ASTAP shows a definite skew towards the top right corner - it’s definitely visible at full resolution. I’ll be disappointed if it doesn’t resolve with adjustment of the tilt corrector.
Mark - I’m loving the massive FOV. I always envied the amazing wide field shots taken with big sensors on modest focal length refractors.
Peter - I’ve made up an alignment collar, on the 3D printer, to try to overcome the lateral movement of the dovetail interface to the QHY filter wheel. I’m hoping that will afford a degree of reproducibility in alignment for this itinerant imager. It’s definitely not going to be a point and shoot camera.
DT
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