ANSWERS TO COMMONLY ASKED QUESTIONS

 

 

 

1.

The image I see in the telescope is upside

∙ An upside-down image is a common

 

down?

characteristic of most astronomical telescopes.

 

 

However, as described above, the Erecting

 

 

Eyepiece will provide erect images allowing

 

 

objects that you see to be right-side-up.

 

 

 

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 700mm. 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 78-9440 manual Answers to Commonly Asked Questions
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78-9440 specifications

The Bushnell 78-9440 is a standout device in the realm of high-quality binoculars, merging cutting-edge technology with user-friendly features that cater to both amateur and seasoned outdoor enthusiasts. Designed to optimize viewing experiences, this model is known for its robust performance and durability.

One of the key features of the Bushnell 78-9440 is its powerful magnification capabilities. It boasts an impressive zoom that allows users to view distant objects with remarkable clarity. With an objective lens diameter that enhances light transmission, these binoculars excel in low-light conditions, making them ideal for both early morning birdwatching and dusk wildlife exploration.

A significant characteristic of the 78-9440 model is its fully multi-coated optics. This advanced optical technology minimizes light loss and maximizes brightness and color fidelity, ensuring crisp, vivid images. As a result, users can expect exceptional image quality without compromising on detail or clarity, which is crucial for birdwatchers or nature observers.

The Bushnell 78-9440 also prioritizes usability and comfort. Its ergonomic design features a textured grip that facilitates easy handling, even in wet conditions. The non-slip surface ensures a secure hold, while the lightweight construction reduces fatigue during extended use, making it an excellent companion for long hikes or extended outdoor activities.

Durability is another hallmark of this model. The Bushnell 78-9440 is built to withstand the rigors of outdoor environments. It is often designed to be water-resistant and fog-proof, utilizing O-ring seals to keep moisture out and nitrogen purging to prevent internal fogging. This rugged build makes it suitable for varying weather conditions, from humid rainforests to dry deserts.

The 78-9440 is equipped with a central focus knob that is smooth and intuitive, allowing for quick adjustments for a clear view of moving targets. Additionally, the twist-up eyecups provide adjustable eye relief, ensuring comfort for users who wear glasses.

In conclusion, the Bushnell 78-9440 binoculars are a perfect blend of innovation, performance, and durability. Its powerful magnification, high-quality optics, and user-centric design make it a compelling choice for anyone looking to enhance their outdoor viewing experience. Whether for recreational use or professional applications, the 78-9440 stands ready to deliver unparalleled clarity and reliability in every adventure.
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