Andrew
Andrew replied to the topic 'Chromatic aberration, OSC and focus algorithm' in the forum. 2 years ago

Regarding your Coma Correction aberrations. You probably need check the back focus distances from it to your sensor.
At 600mm, your CC specifies 51.5mm back focus.
The ASI 533 has 17.5mm from the M42 T-thread. So you need to make up 34mm in spacers.

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