Question about Celestron Optics
I cant view from the finderscope and the eyepiece at the same time
They must be lined up, and if you are using a higher power eyepiece, this must be more precise as your field of view is smaller.
There will be some type of adjustment on the finderscope, probably 3 thumbscrews around the holder tube.
Put in a low power eyepiece and point the scope at a local feature such as a streetlight or distant building. Get this centered in the eyepiece. Then adjust the finder only so the feature is centered in the finder as well.
Put in a higher power eyepiece and center the feature again in the telescope EP, and readjust the finder centering by itself, if needed.
Then choose a bright star and by moving the scope mount, place this in the center of the finder. Check if the star is properly centered in the EP as well and if not, move the scope mount until it is. Then finally adjust the finder centering by itself.
Posted on Feb 08, 2012
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Posted on Jan 02, 2017
SOURCE: barska 40070
Yeah, I am. Bought mine on eBay and it doesn't have ANY info. I don't even know how to assemble the optics. Help? If I can assemble it I'll pass along any tips I find to make yours work
Posted on Aug 08, 2008
Do NOT use the barlow lens-- put the lowest magnification eyepiece into the scope-- practice focusing on the moon -- turn the focus knob slowly in and out until you get a sharp image.
Telescopes only show an area of sky about 1 degree wide or LESS--- this is about the size of the TIP of your finger held at arms length................ your scope is best used at low magnification.
Posted on Jan 04, 2009
If things are upside down in your telescope, you probably have a reflector telescope.it has curved mirror in the sealed end.take off the cover near the finder and point in the general direction of what you want to see.Make adjustments with the stuff on the mount.If you are viewing terrestrial objects, you will need an inverting lens to correct the image.It is called a Barlow lens and is much longer than the other lenses that come with the telescope.Good Luck
Posted on Mar 25, 2009
Without sounding like I'm treating you like an idiot but um....is the lens cover off? Do you see any light at all?
Posted on Aug 01, 2009
TOO much magnification! Hate to tell you but the MAXIMUM magnification for any telescope (all things being perfect-- like optics, and sky conditions) is 50 times aperture. So max for you is about 125 power.
Normally only about 30-40 times aperture is possible. So about 90 power is your normal max magnification.
We see this every Christmas. People buy scopes that say 275 power or 500 power on the outside of the box. It's a LIE!
Even in my 8 inch LX90 I rarely go above 200 power, and only when the sky is clear and very stable. Use the eyepiece with the largest number written on it which will be your lowest magnification.
Posted on Dec 27, 2009
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