Bushnell 78-9470 manual Answers to Commonly Asked Questions

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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 ZOOM

 

 

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 750mm. 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

The numbers on the eyepiece represents the

 

mean?

“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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Contents 470 x 60 Zoom Refractor Telescope Standard Equipment Attach Telescope and FinderscopeAttach Accessory Tray Attach Eyepiece AccessoriesUsing the Penta Mirror Assembly Using the Zoom Eyepiece AssemblySelecting an Eyepiece Aligning FinderscopePage Enjoying Your New Telescope Helpful HintsWhere do I start? Answers to Commonly Asked Questions Intended Configuration Diagram
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