Bushnell 789518 Instruction Manual

Pages 6

Year 2001

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Bushnell 789518 Telescope Specification

The Bushnell 789518 Telescope is a versatile optical instrument designed for both amateur stargazers and seasoned astronomers seeking a reliable and portable device. Featuring a refractor design, this telescope offers clear and crisp views of celestial objects. The optical tube is crafted from durable materials, ensuring longevity and resistance to wear and tear. The telescope is equipped with a 50mm objective lens, which optimizes light gathering capabilities, providing bright and detailed images of the night sky.

The Bushnell 789518 includes a range of eyepieces, allowing users to adjust magnification levels to suit different observational needs, from wide-field views of star clusters to detailed observations of planetary surfaces. The telescope is mounted on a sturdy alt-azimuth mount, facilitating smooth and intuitive horizontal and vertical movement. This mount ensures easy tracking of celestial objects as they move across the sky, enhancing the viewing experience.

The telescope is lightweight and compact, making it highly portable for field observations. It is also user-friendly, requiring minimal setup time, making it ideal for beginners. The inclusion of a finder scope aids in the quick and accurate location of objects. Additionally, the telescope incorporates a focus system that allows precise adjustments, ensuring sharp and clear images.

Overall, the Bushnell 789518 Telescope combines ease of use with reliable performance, making it an excellent choice for those looking to explore the wonders of the universe from their backyard or while on the go. Its blend of quality optics, durable construction, and user-friendly features make it a popular option in the entry-level telescope market.

Bushnell 789518 Telescope F.A.Q.

How do I properly align the finderscope on my Bushnell 789518 Telescope?

To align the finderscope, first choose a distant, stationary object. Center that object in the telescope's field of view using a low-power eyepiece. Then, adjust the finderscope's alignment screws until the object's centered in the finderscope's crosshairs.

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

Ensure that the telescope is properly focused by adjusting the focus knob until the image sharpens. Also, check for dew or dirt on the lenses and clean them if necessary using appropriate cleaning tools.

How can I maintain the optical clarity of my Bushnell telescope lenses?

Regularly clean the lenses with a soft, lint-free cloth and lens cleaner specifically designed for optics. Avoid touching the lenses with your fingers to prevent smudges and oil buildup.

Why can't I see anything through my telescope during the day?

Ensure the telescope is not pointed at the sun, as this can damage the optics and your eyes. Aim at a distant terrestrial object and adjust the focus. The scope is primarily designed for night-time use, so daytime viewing can be challenging.

What are the steps for collimating my Bushnell 789518 Telescope?

Collimation involves aligning the mirrors. Use the collimation cap to look through the focuser and adjust the screws on the primary mirror until the reflection is centered. Then, adjust the secondary mirror if needed.

How do I transport my Bushnell telescope safely?

Disassemble the telescope if possible and place it in a padded case. Secure all components to prevent shifting during transport, and avoid placing heavy items on top of the case.

What should I do if the mount is unstable?

Check that all screws and bolts are tightened securely. If the mount remains unstable, consider reinforcing the tripod or placing it on a more stable surface.

How can I improve my experience using the telescope in light-polluted areas?

Use a light pollution filter to enhance contrast and detail. Additionally, try observing from the darkest spot available, and let your eyes adjust to the darkness for optimal results.

What is the best way to store the telescope when not in use?

Store the telescope in a cool, dry place away from dust and moisture. Cover it with a dust cover or store it in its case to protect the optics and mechanical components.

How do I track celestial objects using my Bushnell telescope?

Start by aligning your telescope with the North Star (Polaris) if you're in the Northern Hemisphere. Use the slow-motion controls to track the object as it moves across the sky, adjusting periodically to keep it in view.