Come join the friendliest, most engaging and inclusive astronomy forum geared for beginners and advanced telescope users, astrophotography devotees, plus check out our "Astro" goods vendors.
https://theskysearchers.com/
But even now it is clear that this Mine has arrived, along with other goodies. So the transparency has plummeted into the sewer, of course.Bigzmey wrote: ↑Tue Jun 22, 2021 8:07 pm The other night I wanted to see how the Apertura RACI performs at higher powers. 6mm Baader Classic Ortho (BCO) produced a nice sharp view of 70% lunar phase at 33x. I could not detect any CA. I stepped up the power to 74x using Baader Q-Barlow 2.25x. The view of the lunar surface became dimmer and softer, and yellowish ring of CA became apparent around the lunar disk. However, I was delighted to see that there was plenty of helical focuser travel to accommodate Barlow/BCO combo.
Next time I will try some bright DSOs and doubles. I should try a zoom EP to.