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Hello everyone,

I'm transitioning from primarily visual observing with the Gemini-II system to astrophotography and would appreciate some advice. My current imaging setup is as follows:

• Takahashi TOA-130NFB with the 645 Field Flattener
• ZWO ASI 6200MM
• ZWO OAG-L with ASI 174MM Mini as the guide camera
• Losmandy G11G with Level 6 upgrade
• ASIAir Pro for running imaging sessions

While the imaging hardware itself is solid, I'm struggling to dial in the guiding settings on the ASIAir Pro to achieve good results. I'm dealing with elongated stars and inconsistent guiding graphs. I'd love some suggestions for baseline settings to get started, especially considering the focal length and mount.

Parameters I’m looking to optimize:

• Gain (for the ASI 174MM Mini guide camera)
• Calibration Step Size
• Max DEC Duration
• Max RA Duration
• Dither settings
• Guide Camera Binning (1x1 or 2x2)
• Dark Library (Yes or No)
• Guide Exposure Length
• RA Aggressiveness %
• DEC Aggressiveness %

Notes about the setup:

• My focal length is ~1000mm with the TOA-130 and field flattener.
• The Losmandy G11G is well-tuned with the Level 6 upgrade, but I'm still learning how to best use it for imaging.
• I typically image under moderately dark skies.

If anyone has experience with a similar setup, I’d appreciate any tips or recommended settings to get better guiding performance. Any tricks or advice specific to the ASIAir Pro with an OAG setup would also be super helpful!

Clear skies,

Ryan