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Adjusting the Primary Mirror:

If the telescope is properly collimated you should see the diagonal  

mirror (See Fig. 10) at the exact center of the primary mirror.  If the diagonal 

mirror appears off-center (See Fig. 11) you will need to adjust the primary 

mirror (See Fig.9) located on the outside lower-end of the main tube.  

 

To do this you will first need to loosen the primary mirror locking screws 

(Fig. 8-28).  These are the screws that are flush against the surface of the 

telescope.  Then alternately loosen and tighten the primary mirror tilt screws 

(Fig. 8-29) until the diagonal mirror is centered inside the primary mirror.  

The primary mirror tilt screws are easily identified because they stick out 

from the surface of the telescope.  Once the adjustment is complete, 

 

re-tighten the primary mirror locking screws.

Night Time Star Collimation Testing:

 

•  To test the accuracy of your collimation, equip your telescope with 

the 20mm eyepiece and focus on a moderately bright star.  

 

•  With the star centered in the field of view, slowly turn the focus knob 

(Fig. 1-4) until the star is out of focus.

 

•  If properly collimated, you should see a series of concentric circles 

around a black center dot (Fig. 12-C).  

 

•  If the circles are not concentric and the black dot is not centered 

(Fig. 12A) you will need to make adjustments to the primary mirror.  

Loosen the primary mirror locking screws (Fig. 8-28) and use the 

horizontal and altitude adjustments to move the circles to the edge of 

the telescope field of view (Fig. 12-B).  Then turn the primary mirror 

tilt screws (Fig. 8-29) until the black dot moves to the center of the 

image with the concentric circles radiating from it (Fig. 12-C).  

 

Once centered, tighten down the locking screws.

Specifications:

Optical Design:   

 

Newtonian Reflector

Aperture:   

 

 

76mm (2.99”)

Focal Length: 

 

 

700mm (27.56”)

Focal Ratio:  

 

 

9.21

Finder Scope: 

 

 

10x30mm

Eyepiece 1:   

 

 

Huygenian 20mm Erecting  

Magnification 1:   

 

35x

Eyepiece 2:   

 

 

Huygenian 8mm Erecting

Magnification 2:   

 

87.5x

Mount:  

 

 

 

U Mount

Weight:  

 

 

 

8 lbs.

Warnings:

 

•  Never use this telescope (or its viewfinder) to look directly at or 

 

near the sun.  Viewing the sun can cause instant and irreversible 

 

eye damage.

 

•  Always supervise children when using this telescope.

 

•  Do not leave telescope unattended at any time.  Untrained adults or 

children may not be familiar with the correcting operating procedure.

 

•  Do not point the telescope at the sun even when you are not looking 

through it.  This will cause internal damage to the telescope.

 

•  Handle this telescope with care.  Rough handling might knock the 

internal optical components out of alignment.

Customer Service:

We will be happy to help you with any problems you may experience while 

using your telescope.  Please call our toll-free customer service line at 

1-800-967-8427.

17

16

Fig.12

Summary of Contents for RP-100

Page 1: ...PTICAL HAUPPAUGE NY 11788 www carsonoptical com MADE IN TAIWAN 2010 CARSON OPTICAL HAUPPAUGE NY 11788 www carsonoptical com MADE IN CHINA 2011 CARSON OPTICAL HAUPPAUGE NY 11788 www carsonoptical com M...

Page 2: ...ronomers looking to explore the wonders of outer space and the world around them Please read this man ual carefully to ensure that you assemble and use your telescope correctly When used properly your...

Page 3: ...Fig 1 Fig 3 Fig 2 5 4 Fig 4...

Page 4: ...Fig 6 Fig 5 Fig 7 7 6 Fig 8...

Page 5: ...with the ground You will notice there are holes in the tripod leg braces Fig 6 22 These are designed to hold eyepieces when not in use Attaching the U Mount Remove the U mount Fig 1 6 from the box Pla...

Page 6: ...nob Fig 5 17 until the image in the finder scope is sharp and clear Check the alignment at nighttime by repeating this process with a bright star or the moon Make any necessary adjustments Now that yo...

Page 7: ...There are many conditions that may affect your ability to focus or observe celestial objects clearly Brightly lit areas light pollution will make it difficult to see faint objects in the sky It will...

Page 8: ...The outer most circle being a reflection of the primary mirror with three mirror clips The inner circle is the diagonal mirror which should be precisely centered inside the primary mirror You should...

Page 9: ...need to make adjustments to the primary mirror Loosen the primary mirror locking screws Fig 8 28 and use the horizontal and altitude adjustments to move the circles to the edge of the telescope field...

Page 10: ...f an implied warranty and or do not allow excluding or limiting incidental or consequential damages If so the above limitations or exclusions may not apply to you Warranty Procedure Provide proof of p...

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