Bushnell Telescope 78 9565 User Manual

565 x 60 Refractor Teles cope  
Model 78-9565  
 
5. Attach Control Cables , Counterweight and Eyepieces  
Locate the Fine Adjus tment Cables (14). Loosen the silver screws located at the end of the Fine Adjus tment  
Cables and attach the Fine Adjus tment 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 As cens ion  
Lock Knob (4).  
6. Locate the Counterweight (6) and Counterweight Shaft (5). Loosen the thumbscrew located on the  
Counterweight and slide the Counterweight onto the Counterweight Shaft, then and tighten thumbscrew 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.  
7. Insert Eyepiece (17) into focusing tube to begin viewing.  
Your Bus hnell Voyager Teles cope is now ready to be us ed. To obtain the fulles t  
enjoyment from your teles cope, pleas e refer to the additional information below.  
HOW TO USE YOUR NEW TELESCOPE  
As tronomical teles copes are des igned in s uch a way that the image you will s ee  
appear  
UPSIDE DOWN and REVERSED, this is acceptable for viewing celes tial bodies .  
Us ing the Penta Mirror As s embly:  
1. A Bas ic Des cription: Bushnell is proud to present the  
Exclusive Penta Mirror Technology. This Penta Mirror  
Assembly provides the benefit of a convenient 90 degree  
viewing angle commonly associated with diagonal mirrors.  
However, the Penta Mirror provides something that  
diagonal mirrors cannot provide--right to left correct views  
of the any object viewed through the telescope. Unlike  
Fully Correct Image  
Reversed Image  
traditional diagonal mirrors that provide backward images  
of objects seen on land and in the night sky, the Penta  
Mirror allows correct images to be viewed.  
The  
groundbreaking benefit of this technology is that when  
viewing and locating objects through the telescope, when  
you want to move to the left, you move it to the left  
intuitively instead of fumbling around the sky becoming  
increasingly frustrated that you cant move the telescope  
the way your intuition tells you that you need to move it.  
Objects on land at great distances can be seen naturally  
(and readable) as if you were many times closer to the  
object. Objects in the sky appear as they appear in most  
star charts. For the first time ever, you will be able to see  
what you would expect resulting in excellent viewing  
satisfaction. In addition, the penta mirror has a special  
insert that is easily removed by backing out the eyepiece  
set screw and removing the insert to yield a 1.25” optical  
format receiver.  
Upside-Down Image  
Upside-Down & Reversed Ima  
Insert  
2. How-To-Us e: Just like any traditional diagonal mirror,  
place the eyepieces directly into the rear of the Penta  
Mirror Assembly then place the Penta Mirror directly into  
the back of the telescope focusing tube, erecting lens or  
Barlow lens (See Intended Configuration Diagram).  
Penta Mirror  
 
Please find below an image depicting how to attach the red dot finderscope and an image  
depicting a fully-attached unit.  
How-To-Attach: Place Finderscope Cylindrical Groove over Cylindrical Finderscope Mount  
Post until it clicks into place.  
Plastic Insert  
Adjustment  
Wheels  
Aligning and Using Red Dot Finderscope  
Remove plastic insert on bottom side of finderscope to allow battery to make connection with battery  
contact for power. Turn power switch on.  
Look through main telescope tube at low power and establish a well-defined stationary target.  
Looking through red dot finderscope, alternate tightening each adjustment wheel (at rear and  
left side of finderscope) until the red dot of finderscope is precisely aligned and centered on the  
same object being viewed in main telescope tube.  
 
Selecting an Eyepiece:  
1. You should always start viewing with the lowest power eyepiece, which in this case is the 20mm lens. Note:  
the base power of each eyepiece is determined by the focal length of the telescope objective lens, which for  
this model is 750 mm. A formula can be used to determine the power of each eyepiece: teles cope  
OBJ ECTIVE lens focal length EYEPIECE focal length = MAGNIFICATION (e.g. Using the 20 mm lens,  
the calculation would look like this: 750 mm ¸ 20mm = 38x or 38 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 Penta Mirror. Note: The Penta Mirror  
As s embly when us ed in conjunction with the Barlow Lens and Eyepiece as s hown on diagram will  
yield an effective doubling power of the magnification already achieved with the Barlow and Eyepiece  
configuration alone. The magnification calculation would look like this: 750 mm ¸ 20mm = 38 power. 38  
power x 3=114 power. 38 x 3 x 2=228 power. (See Intended Configuration Diagram).  
Focus ing Teles cope:  
1. After selecting the desired eyepiece, aim main telescope tube at a land-based target at least 200 yards away  
(e.g. A telephone pole or building). Fully extend focusing tube by turning Rack and Pinion Focus ing Mechanis m  
(15).  
2. While looking through selected eyepiece (in this case the 20 mm), slowly retract focusing tube by turning Rack  
and Pinion Focus ing Mechanis m until object comes into focus.  
Viewing Land-Bas ed Objects :  
1. As described above, the Erecting Lens will correct the normally upside down and reversed image so that you  
can easily enjoy observing land-based objects through your telescope.  
2. Simply insert the Erecting Lens into the focusing tube of the telescope followed by the penta mirror, then  
insert an eyepiece into the penta mirror. (See Intended Configuration Diagram).  
3. Repeat focusing directions as described above except that you will be looking through the Erecting Lens and  
eyepiece instead of just the eyepiece.  
Aligning Finders cope:  
Look through main telescope tube at low power and establish a well-defined stationary target. Looking through  
red dot finderscope, alternate tightening each adjustment wheel (at rear and left side of finderscope) until the red  
dot of finderscope is precisely aligned and centered on the same object being viewed in main telescope tube.  
See finderscope page.  
Now, objects located first with the Finders cope (18) will be centered in the field of view of the main telescope.  
Balancing the Teles cope  
1. Arrange the telescope so that the telescope body is horizontal to the floor (latitude of 0°). Loosen the Right  
As cens ion Lock (4). The telescope should now turn freely about the polar axis. Rotate the telescope about the  
polar axis so that the Counterweight Shaft (5) is parallel to the ground (horizontal).  
2. Loosen the Counterweight Lock Screw (located on the  
counterweight), and slide the Counterweight (6) along the  
shaft until the telescope remains stationary without drifting  
rotationally about the polar axis. Tighten the Counterweight  
Lock Screw, locking the Counterweight into position.  
Cradle (20)  
3. Now balance the telescope about the Declination Axis.  
Loosen the Declination Lock Knob (3) and the Cradle Lock  
Knobs (fig. 3) so that the telescope can slide freely inside the  
Cradles . Slide the telescope up or down inside the rings until  
Fig. 3  
 
the telescope remains stationary without drifting rotationally about the Declination Axis . Tighten Cradle Lock  
Knobs . The telescope is now balanced.  
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 earths rotation and around the earths axis.  
By aligning the telescopes polar axis at celestial North, you will place the telescope in  
parallel with the earths 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 Horizontal Axis Lock Knob (13) 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 Latitude Lock Knob (7) and set the latitude  
scale to the correct latitude for your area. Aim the Finders cope (18) at Polaris. You will probably notice that Polaris  
is not dead center in the Finders copes field of view. This is probably because your telescope is not absolutely  
level with the ground. Loosen the Horizontal Axis Lock Knob (13) again and turn the telescope so that it is directly  
aimed at Polaris. Tighten both the Horizontal Axis Lock Knob and Latitude Lock Knob . Polaris is 1 degree from the  
North celestial pole. Therefore, the sighting of stars will have to be slightly adjusted as you locate them in the  
heavens.  
Never Look Directly At The Sun With Your Teles cope  
Permanent Damage To Your Eyes May Occur  
Enjoying Your New Teles cope  
1. First determine your targeted object. Any bright object in the night sky is a good starting point. The Moon is a  
great starting point. This is an object sure to please any budding astronomer or experienced veteran. When  
you have developed proficiency at this level, other objects become good targets. Saturn, Mars, Jupiter, and  
Venus are good second steps to take.  
2. The first thing you need to do after assembling the telescope as planned is center the desired object in the  
finderscope's cross hairs. Provided you did a reasonable job aligning the finderscope, a quick look through  
the main telescope tube at low power should reveal the same image. With the lowest power eyepiece (the  
one with the largest number printed on it) you should be able to focus the same image that you saw through  
the finderscope. Avoid the temptation to move directly to the highest power. The low power eyepiece will  
give you a wider field of view, and brighter image--thus making it very easy to find your target object. At this  
point with a focused image in both scopes, you've passed the first obstacle. If you don't see an image after  
attempting to focus it in, you might consider aligning your finderscope again. Once you pass this step, you'll  
will enjoy the time spent ensuring a good alignment. Every object you center in the finderscope will be easily  
found in the main telescope tube, which is important for continuing your exploration of the night sky.  
3. The low power eyepieces are perfect for viewing the full moon, planets, star clusters, nebulae, and even  
constellations. These should build your foundation. However, for more detail, try bumping up in magnification  
to higher power eyepieces on some of these objects. During calm and crisp nights, the light/dark separation  
line on the moon (called the "Terminator") is marvelous at high power. You can see mountains, ridges and  
 
craters jump out at you due to the highlights.  
Similarly, you can move up to higher magnifications on the  
planets and nebulae. Star clusters and stars are best viewed through the low power no matter what.  
4. The recurring astronomical theater we call the night sky is an ever-changing billboard. In other words, not the  
same movie plays all the time. Rather, the positions of the stars change not only hourly as they seem to rise  
and set, but also throughout the year. As the earth orbits the sun our perspective on the stars changes on a  
yearly cycle about that orbit. The reason the sky seems to move daily just as the sun and the moon "move"  
across our sky, is that the earth is rotating about its axis. As a result you may notice that after a few minutes  
or a few seconds depending on what power you are viewing at, the objects in your telescope will move. At  
higher magnifications especially, you will notice that the moon or Jupiter will "race" right out of the field of  
view. To compensate, just move the fine adjustment controls on your telescope to "track" it in the necessary  
path.  
Helpful Hints  
1. Your telescope is a very sensitive instrument. For best results and fewer vibrations set your telescope up on  
a level location on the ground rather than your concrete driveway or your wooden deck. This will provide a  
more stable foundation for viewing, especially if you've drawn a crowd with your new telescope.  
2. If possible view from a location that has relatively few lights. This will allow you to see much fainter objects.  
You'd be surprised how much more you'll see from your local lake or park when compared to a backyard in  
the city.  
3. Using your telescope out a window is NEVER recommended.  
4. View objects that are high in the sky if possible. Waiting until the object rises well above the horizon will  
provide a brighter and crisper image. Objects on the horizon are viewed through several layers of earth's  
atmosphere. Ever wonder why the moon appears orange as it sets on the horizon. It's because you are  
looking through a considerable more amount of atmosphere than you would directly overhead. (Note: If  
objects high in the sky are distorted or wavy, you are probably viewing on a very humid night.) During nights  
of unstable atmosphere, viewing through a telescope can be frustrating if not impossible. Astronomers refer  
to crisp, clear nights as nights of "good seeing."  
Where do I s tart?  
Your Bushnell telescope can bring the wonders of the universe to your eye. While this manual is intended to  
assist you in the set-up and basic use of this instrument, it does not cover everything you might like to know about  
astronomy. The first thing you need to do is get a very simple star chart and a flashlight with a red bulb or red  
cellophane over the end. For objects other than stars and constellations, a basic guide to astronomy is a must.  
Some recommended sources appear on our website at www.bus hnell.com. Also on our website will be current  
events in the sky for suggested viewing. But, some of the standbys that you can see are:  
The Moon--a wonderful view of our lunar neighbor can be enjoyed with any magnification. Try viewing at different  
phases of the moon. Lunar highlands, lunar Maria (lowlands called "seas" for their dark coloration), craters,  
ridges and mountains will astound you.  
Saturn--even at the lowest power you should be able to see Saturn's rings and moons. This is one of the most  
satisfying objects in the sky to see simply because it looks like it does in pictures. Imagine seeing what you've  
seen in textbooks or NASA images from your backyard!  
Jupiter--the largest planet in our solar system is spectacular. Most noted features are its dark stripes or bands  
both above and below its equator. These are the north and south equatorial belts. Also interesting are Jupiter's  
four major moons. Pay close attention to their positions from night to night. They appear to be lined up on either  
side of Jupiter.  
Mars--The Great Red Planet appears as a reddish-orange disk. Look at different times of the year and try to  
catch a glimpse of the white polar ice caps.  
 
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!  
For further questions or additional information please contact:  
Bushnell Sports Optics Worldwide  
9200 Cody  
Overland Park, KS 66214  
ANSWERS TO COMMONLY ASKED QUESTIONS  
1. The image I see in the telescope is upside down  
and reversed from right to left?  
·
·
·
An upside-down and reversed image is  
a
common characteristic of most astronomical  
telescopes. Try using the enclosed erecting  
eyepiece and penta mirror to remedy this  
problem.  
2. How do I determine the power my telescope?  
3. Where do I find the Telescope Focal Length  
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)  
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 900mm 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 Focus ing Mechanis m (3) to  
bring the object you are trying to view into focus  
Intended Configuration Diagram  
 
Teles cope 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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