Selecting an Eyepiece:
1. You should always start viewing with the lowest power eyepiece, which in this case is the 12.5mm
lens. Note: the base power of each eyepiece is determined by the focal length of the telescope
objective lens, which for this model is 700 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 12.5 mm lens, the calculation would look like this: 700 mm
÷
12.5mm = 56x or 56 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 Assembly when used in conjunction with the Barlow Lens and Eyepiece as
shown in the Intended Configuration 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: 700 mm
÷
12.5mm = 56 power. 56 power x 2.5=140
power. 56 x 2.5 x 2=280 power. (See Intended Configuration Diagram).
Focusing Telescope:
1. After selecting the desired eyepiece, aim main telescope tube at a land-based target at least 200
yards away (e.g. telephone pole or building). Fully extend focusing tube by turning
Rack and Pinion
Focusing Mechanism (11).
2. While looking through selected eyepiece (in this case the 12.5 mm), slowly retract focusing tube by
turning Rack and Pinion Focusing Mechanism until object comes into focus.
Viewing Land-Based 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, penta mirror into erecting lens,
then insert an eyepiece into the erecting lens.
(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 Finderscope:
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 wide field
Finderscope (14)
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
