Venus--just like the moon, Venus changed phases from month to month. Some views of brilliant Venus appear as if you were looking at a distant crescent moon.

Nebulae--The Great Orion Nebula is a very well known night sky object. This and many others are brought to you by this telescope.

Star Clusters--View millions of stars densely packed in a cluster that resembles a ball.

Galaxies--One of the greatest and most interesting galaxies is our neighbor the Andromeda Galaxy. Enjoy this and many others. Much, much, more!

 

www.bushnell.com

 

 

 

ANSWERS TO COMMONLY ASKED QUESTIONS

 

 

 

 

 

 

 

1.

The image I see in the telescope is upside down and

∙

An upside-down and reversed image

is a common

 

reversed from right to left ?

 

characteristic of most astronomical telescopes. Since

 

 

 

telescopes are used for astronomical viewing

 

 

 

orientation is not important.

The

image in the

 

 

 

finderscope will also be reversed.

 

 

 

 

 

 

2.

How do I determine the power my telescope ?

∙

The power of your telescope can be

determine 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

 

 

 

540mm. Telescope focal lengths range from 540mm

 

 

 

to 900mm on Bausch & Lomb and 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

 

 

telescope can view galaxies. Most planets can be seen at

 

 

any magnification.

 

 

 

 

 

 

 

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 78-9540 manual Answers to Commonly Asked Questions
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78-9540 specifications

The Bushnell 78-9540 is a versatile and innovative outdoor product designed to enhance the experience of adventurers and outdoor enthusiasts. One of the standout features of the 78-9540 is its powerful 10x magnification, paired with a 50mm objective lens. This combination provides a bright and clear field of view, making it an excellent choice for activities such as bird watching, hunting, and sporting events.

The optics of the Bushnell 78-9540 utilize high-quality multi-coated lenses that ensure maximum light transmission. This results in enhanced brightness and clarity, even in low-light conditions. The inclusion of Bak-4 prisms optimizes image quality, delivering a sharp and vibrant view, which is essential for spotting wildlife or tracking distant targets.

Another significant aspect of the Bushnell 78-9540 is its durable construction. Built with a rugged, rubber-armored outer casing, this binocular is designed to withstand the rigors of outdoor use. It is also fog-proof and waterproof, ensuring that the device remains functional in various weather conditions. The nitrogen purging within prevents internal fogging, allowing users to maintain clear vision in humid or rapidly changing environments.

The ergonomic design of the 78-9540 includes a comfortable grip and a lightweight build, making it easy to handle for extended periods. The twist-up eyecups provide additional comfort for users with or without glasses, enabling everyone to enjoy a full field of view. Additionally, the binoculars feature a smooth focusing mechanism that allows users to adjust the focus quickly and accurately, enhancing their overall experience.

In terms of portability, the Bushnell 78-9540 is designed for easy transport. The compact size, combined with a carrying case and neck strap included in the package, makes it convenient for outdoor expeditions.

Overall, the Bushnell 78-9540 offers a perfect blend of quality optics, rugged durability, and user-friendly features, making it a top choice for anyone looking to elevate their outdoor exploration. Whether you're hiking, camping, or observing nature, this binocular delivers exceptional performance and reliability, ensuring that you never miss a moment of the beauty around you.
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