ANSWERS TO COMMONLY ASKED QUESTIONS

 

 

 

1.

The image I see in the telescope is upside down

∙ An upside-down and reversed image is a

 

and reversed from right to left?

common characteristic of most astronomical

 

 

telescopes. Since telescopes are used for

 

 

astronomical viewing orientation is not important.

 

 

However, as described above, the T-18 erecting

 

 

lens can be used to provide normal images.

 

 

 

2.

How do I determine the power my telescope?

∙ The power of your telescope can be determined

 

 

by dividing the focal length of the objective lens

 

 

by the focal length of the eyepiece. The

 

 

eyepiece focal length is the number printed on

 

 

the eyepiece. (For example: 1000 ÷ 25 = 40X)

 

 

 

3.

Where do I find the Telescope Focal Length

∙ The telescope focal length is the same focal

 

 

length as the objective focal length. For this

 

 

telescope it is 910mm. Telescope focal lengths

 

 

range from 600mm to 910mm on Bushnell

 

 

telescopes.

 

 

 

4.

What can I see with my telescope?

∙ Telescopes with power ranging from 25X to 50X

 

 

can be used to view Star Clusters and Nebulae.

 

 

90X to 120X telescopes can view galaxies. Most

 

 

planets can be seen at 150X and higher.

 

 

 

5.

What do the numbers on the eyepiece mean?

∙ The numbers on the eyepiece represents the

 

 

“focal Length” of the eyepiece.

 

 

 

TROUBLESHOOTING GUIDE

If after you have set-up your new telescope you are unable to see any objects, use this Quick Reference guide to help you to understand the cause of the problem and quickly determine a remedy

1. I’ve completed the set-up yet I cannot see anything

∙Check to see if objective lens cover has been removed.

∙Try to view an object that is 200 or more yards away.

∙If there is more than one eyepiece included with the telescope, use the lowest power (highest number) eyepiece to begin viewing.

∙Use the Rack & Pinion Focusing Mechanism (3) to bring the object you are trying to view into focus

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Bushnell 78-9570 manual Answers to Commonly Asked Questions
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78-9570 specifications

The Bushnell 78-9570 is a versatile, high-performance binocular designed for outdoor enthusiasts and nature observers. Popular among birdwatchers, hikers, and sports fans, this model combines advanced optics with user-friendly features, delivering exceptional clarity and brightness even in challenging lighting conditions.

One of the standout features of the Bushnell 78-9570 is its 7x magnification paired with a 50mm objective lens. This configuration strikes an ideal balance between magnification and field of view, allowing users to spot distant subjects while maintaining a wide perspective. The 50mm lens diameter ensures ample light transmission, resulting in bright, detailed images that are sharp from edge to edge.

The optics of the Bushnell 78-9570 are crafted with multi-coated technology, enhancing light transmission and producing vivid colors. The prisms used in these binoculars are designed to correct distortion and provide a clearer image, allowing users to appreciate the fine details of their surroundings. This makes it particularly suitable for dawn and dusk observations when lighting is less than ideal.

Comfort is also a crucial aspect of the Bushnell 78-9570. The ergonomic design, combined with the textured rubber armor, ensures a secure grip and protects the binoculars from rough handling or accidental drops. The binoculars are also lightweight, making them easy to carry during long hikes or birdwatching excursions.

Another significant characteristic is the waterproof and fog-proof construction. With O-ring sealing and nitrogen purging, the Bushnell 78-9570 is engineered to withstand various weather conditions, allowing users to enjoy their adventures without worrying about moisture damage or internal fogging.

The twist-up eyecups offer additional comfort for users wearing glasses, ensuring that everyone can take full advantage of the field of vision without compromising on experience. Additionally, the large focus wheel enables fast and precise focus adjustments, making it easier to track moving subjects.

In conclusion, the Bushnell 78-9570 is an excellent choice for anyone in need of robust, feature-rich binoculars suitable for a variety of outdoor activities. With its powerful magnification, high-quality optics, and durable design, this model is designed to perform reliably in the field, making it a trusted companion for nature lovers and adventurers alike. Whether you’re on a hike, at a sporting event, or simply observing wildlife, the Bushnell 78-9570 delivers exceptional performance that enhances the overall experience.
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