Bushnell Battery Charger 78 9519 User Manual

DEEP SPACE SERIES  
675 x 60 Refractor Telescope  
Model 78-9519  
22  
21  
1
2
3
20  
19  
18  
17  
4
5
6
16  
15  
7
8
14  
13  
9
11  
12  
10  
12. Accessory Tray  
1. 60mm Objective Lens  
2. Telescope Main Tube  
3. Declination Lock Knob  
4. Right Ascension Lock Knob  
5. Counterweight Shaft  
6. Counterweight  
7. Altitude Lock Knob  
8. Azimuth Lock Knob  
9. Tripod Leg  
10. Tripod Leg Middle Section  
11. Accessory Tray Brace  
13. Tripod Leg - Lock Screws  
14. Fine Adjustment Cable & Knob  
15. Rack & Pinion Focusing Mechani  
16. Diagonal Mirror  
17. Eyepiece  
18. Finderscope Focus Adjustment  
19. Finderscope Adjustment Screws(  
20. Finderscope  
21. Finderscope Mount  
22. Equatorial Mount  
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·
·
Loosen the silver screws located at the opposite end of the Fine Adjustment Cables (14). Now, attach  
the Fine Adjustment Cables to the two silver posts found on the Equatorial Mount. The first post is  
located just above the Declination Lock Knob (3), the second post is located below the Right Ascension  
Lock Knob (4).  
Locate the Counterweight (6) and Counterweight Shaft (5). Loosen the  
17  
thumb screw located on the Counterweight and slide the Counterweight  
onto the Counterweight Shaft and tighten thumb screw to secure the  
Counterweight. Thread the Counterweight Shaft into the hole located  
directly below the Declination Lock Knob (3). Make sure that the shaft  
is securely locked into mount.  
16  
·
Locate Eyepiece (17) and Diagonal Mirror (16). Carefully place Eyepiece  
into Diagonal Mirror as shown (fig. b)  
15  
fig b.  
Your Bushnell telescope is now ready to be used. To obtain the fullest enjoyment  
from your telescope, please refer to the additional information below.  
III. UNDERSTANDING THE EQUATORIAL MOUNT  
The equatorial mount is designed to move in any direction. It can be set to  
allow manual controls to track the movements of celestial bodies across the  
sky. This is referred to as diurnal movement; movement of celestial bodies in  
the direction opposite to that of the earth’s rotation and is around the earth’s  
axis.  
By aligning the telescope’s polar axis at celestial North, you will place the  
telescope in parallel with the earth’s axis and thus be able to locate stars in  
the sky based on star atlas information. To compensate for your position on  
earth, the polar axis is set in one of three ways:  
·
·
·
Set up the telescope at night. Loosen the Declination Lock Knob (3) and  
rotate the telescope around the declination axis until the arrow on the  
declination scale points to 90 degrees. Tighten the Declination Lock Knob.  
The telescope is now roughly in parallel with the polar axis.  
Loosen the Azimuth Lock Knob (8) and turn the telescope until the objective end faces due north. This  
can be done by approximating the location of the pole star (Polaris or North Star) or by the use of a  
compass. True North is then found by directing the telescope at Polaris, as magnetic North is slightly  
away from true North.  
Look up the latitude of your area in any geographical atlas. Loosen the Altitude Lock Knob (7) and set  
the latitude scale to the correct latitude for your area. Aim the Finderscope (20) at Polaris. You will  
probably notice that Polaris is not dead center in the finderscope’s field of view. This is probably  
because your telescope is not absolutely level with the ground. Loosen the Azimuth Lock Knob (8)  
again and turn the telescope so that it is directly aimed at Polaris. Tighten both the Azimuth Lock Knob  
and Altitude Lock Knob. Polaris is 1 degree of the North celestial pole. Therefore, the sighting of stars  
will have to be slightly adjusted as you locate them in the heavens.  
HOW TO USE YOUR NEW TELESCOPE  
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Astronomical telescopes are designed in such a way that the image you will see appear will be UPSIDE DOWN and  
REVERSED, this is acceptable for viewing celestial bodies. For land-based viewing an “Erector Lens” is used to  
properly re-orient the image.  
Selecting an Eyepiece:  
1. You should always start viewing with the lowest power eyepiece, which in this case is the 20 mm lens.  
Note: the base power of each eyepiece is determined by the focal length of the telescope objective lens,  
which for this model is 900 mm. A formula can be used to determine the power of each eyepiece:  
telescope OBJECTIVE lens focal length EYEPIECE focal length = MAGNIFICATION (e.g. Using the  
20 mm lens, the calculation would look like this: 900 mm ¸ 20mm = 45x or 45 power.)  
2. Included with this telescope is a Barlow lens. Barlow lenses are used to double or triple the power of your  
telescope. Place your Barlow between the focusing tube and the eyepiece. Using the example above,  
your 3x Barlow lens would give you a total power of 135x or 135 power. (45 x 3 = 135x or 135 power)  
3. Also included with this telescope is an Erecting lens. The Erecting lens is used to view land-based  
objects where the correct image orientation is important. The Erecting lens re-orients the telescope image  
so that the image you are viewing is properly oriented. Place your Erecting lens between the focusing  
tube and the eyepiece (fig. c). It is not recommended to use the Diagonal Mirror (16) with the Erecting lens.  
The Diagonal Mirror will make the erected image appear to be “flipped” depending on the orientation of  
the diagonal mirror- relative to the telescope.  
Barlow or Erecting Lens  
17  
15  
fig. c  
Focusing Telescope:  
1. After selecting the desired  
tube at land-based  
eyepiece, aim main telescope  
target at least 200 yards away  
a
(e.g. A telephone pole or building). Fully extend focusing tube by turning Rack and Pinion Focusing  
Mechanism (15).  
2. While looking through selected eyepiece (in this case the 20 mm), slowly retract focusing tube by turning  
Rack and Pinion Focusing Mechanism until object comes into focus.  
Aligning Finderscope:  
1. Look through Main Telescope Tube (2) and establish a well-defined target. (see focusing telescope section)  
Tighten the Altitude Lock Knob (7) and Azimuth Lock Knob (8) so that telescope’s aim is not disturbed.  
2. Looking through Finderscope (20), alternate tightening each Finderscope Adjustment Screw (19) until  
crosshairs of Finderscope are precisely centered on the same object already centered in main telescope  
tube's field of view.  
3. Now, objects located first with the Finderscope (20) will be centered in the field of view of the main  
telescope.  
Never Look Directly At The Sun With Your Telescope  
Permanent Damage To Your Eyes May Occur  
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Telescope LIFETIME LIMITED WARRANTY  
Your telescope is warranted to be free of defects in materials and workmanship for the lifetime  
of the original owner. The Lifetime Limited Warranty is an expression of our confidence in the  
materials and mechanical workmanship of our products and is your assurance of a lifetime of  
dependable service.  
If your telescope contains electrical components the electronic components are warranted to be  
free of defects in materials and workmanship for one year after the date of purchase.  
In the event of a defect under this warranty, we will, at our option, repair or replace the  
product, provided that you return the product postage prepaid. This warranty does not cover  
damages caused by misuse or improper handling, installation or maintenance of the product.  
Any return made under this warranty must be accompanied by the items listed below:  
1) A check in the amount of $15.00 to cover the cost of handling  
2) Name and address for product return  
3) An explanation of the defect  
4) Product should be well packed in a sturdy outside shipping carton to prevent  
damage in transit and return postage prepaid to the address listed below:  
IN U.S.A. Send To:  
Bushnell * 8500 Marshall Drive * Lenexa, Kansas 66214  
IN CANADA Send To:  
Bushnell * 25A East Pearce Street, Unit 1 * Richmond Hill, Ontario L4B 2M9  
For products purchased outside the United States and Canada please contact your local dealer  
for applicable warranty information. This warranty gives you specific legal rights. You may  
have other rights which vary from country to country.  
©2001 Bushnell Performance Optics  
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