Celestron RASA Back Focus - How to Calculate Back Focus - What are my Options.
Back focus is a little different on a Rowe-Ackerman Schmidt Astrograph (RASA) than my refractor. I will show you what the back focus is, how to accomplish it and what options you have. Don't stress the math, I will keep it very easy for you. Watch to the end to see all the adorable astro pets who keep us company. Keep emailing me images, let's keep this segment going! amyastrophotography@gmail.com
Chapters
00:00 Start
00:39 Back focus defined
02:24 How to calculate
03:56 Filter Drawer
04:56 How to install
09:06 OOPs, not perfect, lesson learned
12:01 Where to find the information
16:03 Best part of video ASTRO PETS!
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