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 can’t 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 earth’s rotation and 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 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 cope’s 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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