Elongated Stars – Further Analysis

Monday night, I decided to conduct a quick test to confirm whether or not the modifications (IR filter removal and cooling) of my Canon 350D had indeed introduced tilt of the CMOS assembly. Here is what I did: I replaced my modified 350D with my non modified 450D; Focused; Took 15 unguided images of 10 seconds each, near

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Still stuck with Elongated stars.

Tonight here is what I did to try to fix the elongated stars in my images following the changes I’ve made on my setup: Tightened the Guider focuser tension screw Made sure everything was well screwed and solid Re-leveled the Pier 3 stars alignment with the CGEM Polar alignment with the CGEM software Lauched PHD

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Currently stuggling with elongated stars

After installing the main OTA and the guide scope side-by-side using a tamdem bar, eventhough my guiding is now a lot better, I have now elongated stars in my images. Next steps: Spend some time perfecting my polar alignement; Create a slight imbalance on the DEC axis; Testing if those changes correct the problem.

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