Bausch & Lomb 78-0045 User Manual

PROFESSIONAL 4.5 INCH CATADIOPTRIC TELESCOPE

MODEL 78-0045

1

18

2

3

4

5

6

7

8

9

10

1. Rack & Pinion Focusing Mechanism

2. Finderscope

3. Telescope Body

4. Right Ascension Axis

5. Counterweight

6. Counterweight Shaft

7. Fine Adjustment Cables

8. Aluminum Tripod Leg (3)

9. Accessory tray Supports

17

16

15

14

13

12

11

10. Tripod Leg Lock Knob

11. Accessory Tray

12. Tripod Leg Middle Section

13. Latitude Adjustment Screw

14. Latitude Scale

15. Declination Axis

16. Primary Mirror

17. Cradles (2)

18. 1.25 Format Eyepiece

Never Look Directly At The Sun With Your Telescope

Permanent Damage To Your Eyes May Occur

TELESCOPE ASSEMBLY INSTRUCTIONS

Remove all components from the carton and identify all components.

READ THROUGH ASSEMBLY INSTRUCTION BEFORE YOU ASSEMBLE YOUR
TELESCOPE

SET-UP TRIPOD

1. Remove the three tripod legs (8) and Equatorial Mounting System (pre-assembled together)
from carton.

2. Spread tripod legs (8) until accessory tray supports (9) are fully extended.

3. Attach accessory tray (11) by inserting bolt on underside of accessory tray (11) through
accessory tray support (9) center hole. Tighten accessory tray nut onto bolt.

4. Beginning with one Tripod Leg (8) loosen Tripod Leg Lock Knob (10) that secures Tripod Leg
Middle Section (12) and extend the Tripod Leg Middle Section (12).

5. Tighten the Tripod Leg Lock Knob (10) so that the Tripod Leg Middle Section (12) won't
slide.

6. Repeat on remaining two Tripod Legs (8).

ATTACH FINDERSCOPE, COUNTERWEIGHT AND TELESCOPE

1. Remove Telescope Body (3) and Finderscope (2) from carton.

2. Remove nuts located near the Rack & Pinion Focusing Mechanism (1) on Telescope Body (3).

3. Attach Finderscope (2) to Telescope Body (3) by inserting the screws extending from the
Telescope Body (3) into the holes in the base of the Finderscope (2).

4. Refasten nuts so that Finderscope (2) is secure.

5. Remove Counterweight (5) and Counterweight Shaft (6) from carton.

6. Slide Counterweight (5) onto the Counterweight Shaft (6) and tighten thumb screw to secure.

7. Thread Counterweight Shaft (6) into the hole on the bottom of the Declination Column of the
mount (near the Declination Axis), making sure it is tight.

8. Attach two Cradles (17) to the top of the Equatorial Mount as shown.

9. Remove Cradle Locking Clamps of the two Cradles (17) and open the Cradles (17) in
preparation of placing Telescope Body(3) onto mount.

10. Set Telescope Body (3) into Cradles (17) making sure that the Finderscope(2) is on top.

11. Close Cradles (17) around Telescope Body (3) and tighten Cradle Locking Clamps so that the
Telescope Body (3) is secure.

ATTACH FINE ADJUSTMENT CABLES

1. Remove Fine Adjustment Cables (7) from carton.

2. Attach Fine Adjustment Cable (7) to one of the silver posts just under the Right Ascension
Dial (on top of the Right Ascension Axis (4)) Note: Both Right and Left hand Positions are

Provided

3. Secure by finger tightening set screw on shaft.

4. Attach second Fine Adjustment Cable (7) to the silver post of the Declination Axis (15).

5. Secure by finger tightening set screw on shaft.

BALANCE TELESCOPE

1. Loosen Cradle Locking Clamps and Counterweight Thumb Screw.

2. Position Telescope Body (3) and Counterweight (5) to achieve desired balance.

3. Tighten Cradle Locking Clamps and Counterweight Thumb Screw to secure the balanced
telescope and mount into place.

THE FINAL STEPS

1. Remove 1.25" Format Eyepiece (18) from carton.

2. Insert into Rack & Pinion Focusing Mechanism (1).

3. Remove Protective Dust Cover from end of telescope nearest the Rack & Pinion Focusing
Mechanism (1).

4. Let the adventure begin.

Your Bausch & Lomb Telescope is now ready to be used. To obtain the fullest enjoyment from
your telescope, please refer to the following additional information.

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.

TELESCOPE USE

SELECTING AN EYEPIECE:

1. You should always start viewing with the lowest power eyepiece, which in this case is the 25
mm lens. Note: the base power of each eyepiece is determined by the focal length of the
telescope objective element, which for this model is 1000 mm. A formula can be used to
determine the power of each eyepiece: telescope OBJECTIVE mirror focal length
EYEPIECE focal length = MAGNIFICATION (e.g. Using the 25 mm lens, the calculation

would look like this: 1000 mm ÷ 25mm = 40x or 40 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 2x Barlow lens would give you a total power of 80x or 80
power. (40 x 2 = 80x or 80 power)