Bushnell 789003 Instruction Manual

Pages 6

Year 2001

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Bushnell 789003 Telescope Specification

The Bushnell 789003 Telescope is a robust entry-level optical instrument designed for amateur astronomers seeking a reliable and user-friendly stargazing experience. It features a 60mm aperture, which allows substantial light-gathering capability, making it suitable for observing celestial objects like the Moon, planets, and some brighter deep-sky objects. The telescope is equipped with a 700mm focal length, providing a balanced combination of magnification and field of view. It includes interchangeable eyepieces, offering varying levels of magnification to enhance the viewing experience for different celestial phenomena.

The telescope's design incorporates an altazimuth mount, facilitating smooth and intuitive movement across the night sky, essential for tracking objects as they move. This mount type is ideal for beginners, as it allows for straightforward up-down and left-right adjustments. The telescope is constructed with durable materials, ensuring longevity and resistance to wear under regular use. It is lightweight and portable, making it convenient for transport to different observing locations, whether in a backyard or a remote stargazing site.

Bushnell includes an adjustable tripod with the telescope, contributing to stability and ease of use during observations. The tripod is designed to accommodate users of various heights and to provide a firm platform for the telescope. The package also contains a comprehensive instruction manual, aiming to assist users in setting up and optimizing their stargazing sessions. This telescope's capabilities, coupled with its accessible design, make it an appealing choice for novice astronomers eager to explore the night sky with a reliable and straightforward instrument.

Bushnell 789003 Telescope F.A.Q.

How do I assemble the Bushnell 789003 Telescope?

To assemble the Bushnell 789003 Telescope, start by attaching the optical tube to the tripod using the mounting screws provided. Ensure the tripod is stable before attaching the telescope. Then, attach the finderscope to its bracket on the optical tube. Finally, insert the eyepiece into the focuser and secure it with the thumbscrew.

What should I do if the telescope image is blurry?

If the image is blurry, ensure that the telescope is properly focused. Start by adjusting the focus knobs slowly until the image sharpens. Also, check that the eyepiece is clean and free from dust or fingerprints, and ensure the lens cap is removed.

How can I align the finderscope with the main telescope?

To align the finderscope, first point the telescope at a distant object like a tree or a building. Once the object is centered in the main telescope's field of view, adjust the screws on the finderscope until the object is centered in the finderscope's crosshairs.

What is the best way to clean the telescope lenses?

Clean the telescope lenses using a soft microfiber cloth and a lens cleaning solution specifically designed for optical lenses. Avoid using tissue paper or regular cloths, as they can scratch the lens. Always gently wipe in a circular motion.

How do I maintain my Bushnell 789003 Telescope for long-term use?

Regular maintenance includes keeping the telescope covered when not in use to prevent dust accumulation. Periodically check all screws and bolts for tightness. Store the telescope in a cool, dry place, and clean the lenses and eyepieces as needed.

Why can't I see any stars through my telescope?

If no stars are visible, ensure that the lens cap is removed. Check for any obstructions in front of the telescope. Also, verify that you are in a dark location away from city lights, and allow your eyes to adapt to the darkness.

How do I properly transport my Bushnell 789003 Telescope?

To transport the telescope, first detach all removable parts such as the optical tube, finderscope, and eyepiece. Pack these components securely in padded cases. Make sure the tripod is collapsed and secured. Handle with care to avoid any impact damage.

What should I do if the telescope mount is not stable?

If the mount is not stable, check that all screws and bolts are tightened. Ensure the tripod legs are fully extended and set on a level surface. Adding weight to the center of the tripod can also help stabilize the telescope.

How do I adjust the focus on my telescope?

Adjust the focus by slowly turning the focus knobs located near the eyepiece holder. Turn the knobs until the object you are viewing becomes clear. Fine adjustments may be necessary depending on the viewing conditions and the eyepiece used.

Can I use my telescope during the day?

Yes, the Bushnell 789003 Telescope can be used during the day to observe distant terrestrial objects such as landscapes or wildlife. Just ensure that you never point it directly at the sun without proper solar filters, as this can cause serious eye damage.