CGX

[Cosimo]

Good morning ☀️ I'd like to start by saying that I use the CGX mount, the ASI 174 Mini guide camera, and the Subony 40mm guide scope. Focal length:
160mm, an Askar 71F telescope, and an ASI 533 imaging camera. Can you tell me the optimal calibration step (ms) in milliseconds for the CELESTRON CGX mount? Kind regards, Cosimo Carrieri

[Bruce Waddington]

You need to run the new-profile-wizard to define your guiding configuration including all the parameters you've mentioned and a few more.  Doing that will automatically set the calibration step-size that is optimal.

Bruce

[Brian Valente]

Hi Cosimo

Use the New Profile Wizard and enter accurate information about your setup. The step size is then calculated for you

Make sure you use the latest PHD software release

Brian

On Sat, Jan 3, 2026 at 11:27 AM 'Cosimo' via Open PHD Guiding <open-phd...@googlegroups.com> wrote:

Good morning ☀️ I'd like to start by saying that I use the CGX mount, the ASI 174 Mini guide camera, and the Subony 40mm guide scope. Focal length:
160mm, an Askar 71F telescope, and an ASI 533 imaging camera. Can you tell me the optimal calibration step (ms) in milliseconds for the CELESTRON CGX mount? Kind regards, Cosimo Carrieri

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Brian Valente

astronomy portfolio https://www.astrobin.com/users/bvalente/