The CEM120 ad says:Star Dad wrote: ↑Tue Apr 27, 2021 12:35 pm Yeah, Turbo - I used mount only guiding for a year or two before I bought a guiding camera. My mount is capable of 1 minute images without a guiding camera. I usually had to throw out 10% of the images due to a wobble in the mount's worm gear. The wobble is still there, but with guiding camera and software I don't have to throw out any images anymore because of the wobble. Mostly aircraft/satellites and occasionally a cloud that interferes with guiding.
- Precision stepper motor with 0.07 arcsec accuracy for precise
- High precision tracking with low periodic error (PE)<±3.5 arcsec
- Permanent periodic error correction (PPEC)
I don't know how relevant that is, when we talk about mount's ability to track without a guider.
And it's from an ad.