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
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
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
Now, objects located first with the wide field Finderscope (14) will be centered in the field of view of the main telescope.