I'm bettin you will find 7mm eyepieces way to much power for a binoviewer in an 5" SCT. Because the BV moves the focal point behind the BV, it increases the focal length at which the scope operates. My guess is your's will be operating at about F=1600 to F=1750. A typiocal Chinese binoviewer often operates well up to 150x, sometimes up to 200x. Above that and you start getting some issues. Those 7mm eyepieces might put you up around 230x. You could get lucky. Or not.
You might find the best range of eyepieces between 10mm and 26mm.
edz
-------------------- Teach a kid something today. The feeling you'll get is one of life's greatest rewards.
member#21
Previous
Index
Next
Flat
Re: Disappointed with Binoviewer - need help!
Edit
Reply
Quote
