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I have an orange tube C90 scope and I'm trying to find a user manual fo it.

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SOURCE: Where can i possibly download a free Sharp FO-90 User's Manual?

Click the link below

Please check the model number as Sharp do not list it in their product list,2309,,00.html

If you are in Australia

Posted on Jul 10, 2009


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First dyer stopped spinning- tried to turn off and on a few times and to manually turn the tube. Now iwll not go on at all

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User instruction manual

Check out this web site. Hope it helps.

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Please help. I need the user manual for c-star

That is a very simple reflector style telescope --- here is my suggestions-

1. Forget about the barlow--- since this scope has a very small aperture you will not be able to get much more than about 125 power-- if you try to use the barlow which DOUBLES or TRIPLES the power of your eyepieces the images you see will be degraded and it will be VERY hard to point the telescope and focus.

2. Put the eyepiece with the largest number (which is the lowest magnification) into the telescope and take it outside during the day and practice focusing on a distant object.

3. Take it out at night when the moon is up and LESS THAN 3/4 full-- the moon should be your first night target...... if all goes well try to find Saturn which is up in the sky right now, and appears as a slightly yellow "star".

4. The smaller telescope is the finder scope and mounts on top of the main telescope tube. Use this to point the main telescope------- but you must first line it up on a distant object so that the small telescope and the big tube are both pointed exactly alike.

5. Try to find a local astronomy club and attend one of their star parties.

6. Here is a manual for a telescope that is very similar to what you have except yours is on an Alt Az Mount while the one below is on an equatorial mount but many of the tube parts are the same--

Mar 24, 2009 | Optics

1 Answer

Balancing a 70mm refractor tube

Looking at pictures I found on the web, I see a knob on the bottom that tightens the scope to the dovetail bracket on the bottom of the scope. First attach all of your eyepiece then loosen that knob and slide the scope back or forth until it will balance without tightening the knob. Or if you do not have the manual you can download it for free here.

Jan 16, 2009 | Meade Telescope

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