Question about Bushnell NorthStar 78-8831 (525 x 76mm) Telescope
We seems to be having a problem with viewing. When we focus on the moon, we are able to view correctly. When we try to focus on a planet or star, all the images appear to resemeble each other, which is a white circular image with a black center and 3 black lines (in the shape of a peace sign). Any ideas what we might be doing wrong? thank you for any help. M. Walker
The problem is you are way out of focus. Turn the focus knob alot, until the star image gets much much smaller. Keep going until it looks like a pin point or a star!. The spider vane and center black dot will disappear. This black dot is actually the secondary diagonal mirror reflection in the primary mirror. The peace signs are the secondary supports. Use the lowest power eye pieces. I would not use the Barlow lens that comes with this scope as it very poor quality. Also, using this high power with this small an aperature (tube diamter) & unstable mount will be very difficult indeed. Invest in some wide angle, long eye relief low power lens. Use these for a while before going to higher powers.
Posted on Nov 09, 2009
I have the identical scope and problem. VERY frustrating. I do not know what to do. Any help will be appreciated.
Posted on Sep 21, 2009
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Posted on Jan 02, 2017
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