Bushnell 78-9470 manual Answers To Commonly Asked Questions, Troubleshooting Guide

	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