Levenhuk Strike 135 PLUS Telescope - Manual (Page 14)

EN
Using the Barlow lens
The Barlow lens is used to double the power of the eyepieces. To use it, simply insert the Barlow lens into the focuser and then
place the desired eyepiece into the receiving end of the Barlow lens. Note that the higher the power you use the dark er the
image appears.
Model Eyepiece Power Power with 2x Barlow lens
Levenhuk Strike 115 PLUS 10mm 90X 180X
25mm 36X 72X
F7.3-F23mm 123X-39X 246X-78X
Levenhuk Strike 135 PLUS 10mm 90X 180X
25mm 36X 72X
F7.3-F23mm 123X-39X 246X-78X
Getting the most from your telescope
Take the time to become familiar with your new telescope. Learn the names of various parts and accessories, where they have
to go and what they do. It is easier to do this in daylight.
Before beginning your observations, take the telescope outside for around 30 minutes. This allows the telescope to adapt to the
outside air temperature and perform at its best during observations.
Try to set up your telescope in an area sheltered from wind. Move as far away from the city lights as possible. The best
conditions for observations include still air and clear nights when stars are out and shine brightly with little or no twinkling.
When beginning your observations, use low power eyepieces to take advantage of the wider field of view and higher contrast of
the image. High power eyepieces are best used on nights when viewing conditions are perfect for detailed observations.
Balancing the telescope
The telescope should be balanced before each observing session. Balancing reduces stress on the mount and allows precise
micro-adjustment control.
R.A. Balancing
1. Before balancing, make sure the telescope is securely attached to the mount.
2. While holding the telescope with one hand, loosen the R.A. and Dec. lock knobs with the other. Rotate the telescope until
the counterweight is horizontal to the ground
3. Tighten the Dec. lock knob.
4. Loosen the counterweight thumbscrew and move the counterweight along the rod until the telescope is balanced and
remains stationary when released.
5. Tighten the counterweight thumbscrew. Now your telescope is perfectly balanced.
Dec. Balancing
1. Tighten the R.A. lock knob when the counterweight rod is horizontal to the ground.
2. While holding the telescope with one hand, loosen the Dec. lock knob with the other.
3. Loosen the telescope tube rings and slide the telescope forward or
backward until it is balanced even when you release the telescope tube. Tighten the tube rings the Dec. lock knob.
21
22