Bushnell 789519 Instruction Manual

Pages 5

Year 2001

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Bushnell 789519 Telescope Specification

The Bushnell 789519 Telescope is a versatile and user-friendly optical instrument designed for both amateur astronomers and hobbyists. Featuring a refractor optical design, it provides clear and detailed views of celestial objects. The telescope is equipped with a 60mm aperture, which allows for sufficient light gathering capability to observe the moon, planets, and some deep-sky objects with impressive clarity. It boasts a focal length of 700mm, providing a focal ratio of f/11.7, which is ideal for high-contrast and detailed observations.

The telescope comes with interchangeable eyepieces that enhance its versatility, typically including a 20mm eyepiece for wide-field views and a 4mm eyepiece for more detailed observations. Additionally, a 3x Barlow lens is included, effectively tripling the magnification of each eyepiece, allowing for even more detailed exploration of the night sky. A smooth alt-azimuth mount is integrated into the design, providing easy and precise manual tracking of celestial objects. The mount's intuitive controls are suitable for beginners, ensuring an enjoyable stargazing experience.

The Bushnell 789519 is constructed with durability in mind, featuring a sturdy aluminum tripod that ensures stability during observations. The telescope is lightweight and portable, making it convenient for transportation to various observation sites. It also includes accessory trays for organizing eyepieces and other small tools. Designed for ease of use, the telescope does not require complex assembly, making it accessible for novice astronomers. Overall, the Bushnell 789519 Telescope offers a comprehensive package for those looking to explore the night sky with quality optics and reliable performance.

Bushnell 789519 Telescope F.A.Q.

How do I properly align the Bushnell 789519 Telescope?

To align your Bushnell 789519 Telescope, set it up on a stable surface. Use the finderscope to locate a bright object such as a star or planet. Adjust the telescope's position using the altitude and azimuth controls until the object is centered in the viewfinder. Then, fine-tune the alignment using the telescope's eyepiece.

What should I do if the telescope's image appears blurry?

If the image is blurry, ensure that the telescope is properly focused. Use the focus knob to adjust until the image becomes clear. Check for dirt or smudges on the lenses and clean them with a soft, lint-free cloth if necessary. Make sure the eyepiece is securely attached and free from obstructions.

How can I maintain my Bushnell 789519 Telescope to ensure its longevity?

To maintain your telescope, regularly clean the optics with a lens brush or air blower to remove dust. Store the telescope in a cool, dry place to prevent mold and moisture damage. Check and tighten any loose screws and ensure the tripod is stable before use.

What is the best way to clean the lenses of the telescope?

Use a soft, lint-free cloth or a gentle lens cleaning tissue. Avoid using harsh chemicals; instead, use a lens cleaning solution specifically designed for optical equipment. Apply the solution to the cloth, not directly on the lens, and gently wipe in a circular motion.

How can I troubleshoot if the telescope is not focusing properly?

Check if the eyepiece is correctly inserted and secure. Ensure there are no obstructions in the optical path. Verify that the focus knob is functioning and not damaged. If the problem persists, consult the user manual or contact Bushnell customer support for further assistance.

Are there any recommended accessories for enhancing the viewing experience with this telescope?

Consider adding additional eyepieces with different magnifications, a Barlow lens to increase magnification, and a motorized mount for easier tracking of celestial objects. A sturdy carrying case can also help protect your telescope during transport.

What should I do if the telescope is difficult to move?

If the telescope is hard to move, check if the mount locks are engaged and disengage them for smoother movement. Inspect for any debris or obstructions in the mount mechanism and lubricate the moving parts if needed. Ensure the tripod legs are fully extended and stable.

How do I track a moving object with the Bushnell 789519 Telescope?

Use the slow-motion controls on the telescope's mount to track moving objects. Align the telescope with the object's path and gently adjust the controls to follow the object's motion smoothly. A motorized mount can assist in automatic tracking for prolonged viewing sessions.

Can I use my smartphone with the Bushnell 789519 Telescope for astrophotography?

Yes, you can use a smartphone adapter to attach your phone to the telescope's eyepiece for astrophotography. Ensure the adapter is compatible with your phone and aligns correctly with the eyepiece to capture clear images. Use an app that allows manual adjustments for best results.

What should I do if the telescope's mount becomes unstable?

Check that all screws and bolts on the mount and tripod are tightened securely. Ensure the tripod is placed on a level surface. If the mount remains unstable, consider using additional weights or counterbalances to improve stability.