20 Most Recent Vivitar Viv-tel-76700 75x/350x Reflector Telescope Questions & Answers

Not familiar with this particular model, but you may like to try using the main scope to obtain an image (doesn't matter what), then adjusting the small sighting scope to show the same object and securing it in place. HTH

There are probably several good books on astronomy which you may obtain from your local library that could give the information you require, but I doubt if there is one specifically for your telescope. Have you tried contacting the mfrs or importers to see if they can assist you ? After all, it is in their interest to ensure you are satisfied with your purchase.

The image of all astronomical telescopes are upside down (SCTs are upside down and reversed). RACI (right angled, correct image) finders do produce a right-side up image. For daytime use a erect image prism eyepiece.Follow below instructions (except 7 in your case)

1. Get Stellarium or another fine astronomy program
2. During the day, point the telescope at a part of the landscape about 100 yards away.
3. Use the lowest power eyepiece (highest number) in the focal tube.
4. Center the landscape object in the telescope.
5. Align the finder scope so that it points exactly where the main telescope is.
6. At night, leave the scope out to reach thermal equilibrium (about an hour for small reflectors and refractors)
7. If the scope is on a EQ mount, polar align.
8. Point the finder at the moon. The moon should be in the main scope also.
9. Practice finding the moon before you start on the planets
10. Once you are comfortable with the moon and planets, you can go for the deep sky objects

You don't, you take it to a camera repairer. They need to be worked on in a clean room with filtered air and worked on by experts dressed white coveralls and hoods. The information you want is not available from Vivitar because they don't expect consumers to take them apart. https://www.google.com/search?q=Vivitar+monocular+schematic+pdf

Question edited for clarity. Question moved form Misc category. Try here or contact their support. https://www.vivitar.com/pages/vivitar-software-links Also, this might be it here https://www.justanswer.com/video-camera-repair/3336t-can-t-find-install-disc-vivitar-camera-binocular-10x25.html https://www.google.com/search?q=vivitar+magna+camera+binocular+software+download ..

A manual here: https://docs.google.com/document/d/1bVcm785YcGa4xlxWLh_vPP2d7UZyy9oJ1byLNLh-IEw/edit

Contact Vivitar for you country. http://www.vivitar.com/support Support Vivitar Phone and email at link above:

• US: 1-800-592-9541
• UK: 0-800-917-4831
• Australia: 1-800-006-614

Google the make and model, followed by the word manual

any standard RACI prism like this https://www.optcorp.com/os-d125ei45-45-erect-image-diagonal-1-25inch.html .

Well, actually Vivtar is not a big deal as a brand.. Having said this, best option to take it to an optical store where they actually can tell you if it can be repaired and where it can be repaired.

Can you see any ships? Seriously, if you look at a dim light is it really dark? Is there a cover on the eyepiece?

Mount the finder securely on the main scope tube, and make sure each of its adjusting screws is at about mid-travel (BTW a lot of finder scopes have a rubber ring fitted between the finder and its mounting tube. If this is missing a rubber band is a good substitute). Place a low power EyePiece in the scope (this will be the longest focal length EP you have), and then in daylight, find a distant object like a tower or distinctive treetop. Swing the scope and center this object in the EP (it will be upside down in a standard EP). Then center it in the crosshairs of the finder. Change to a lower focal length EP (more powerful) and repeat this procedure . Then at night, swing the scope to an obvious target like a planet or a bright star, and repeat the procedure until everything is centered. If you handle and store the scope carefully between observing sessions there will not be much correction needed next time.