I've recently added the QHY600M to my imaging rig for use with the FSQ-106N. This combo of fast scope with big sensor and tiny pixels seems to be extremely sensitive to good focus and image train tilt. I have a Gerd CTU which I've tried tweaking the tilt to perfect my corners, but I'm still not entirely satisfied. What's worse is I think my focuser (stock Takahashi) might be slipping a bit, and not I'm obtaining as fine focus as I did with my previous smaller camera.
Does anyone have experience upgrading their stock Takahashi focuser with motofocus to a Moonlite Nitecrawler? What are your impressions? Was fine focus improved and more consistent? Did the Nitecrawler help eliminate tilt and make your stars better shaped?
The high cost of the Nitecrawler is a hard pill to swallow, but if it significantly improves my focus (sharp and consistently), and also helps eliminate tilt then I think it maybe worth that high cost. What are your opinions?
Thanks + Clear Skies,