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skyline 50 x 600 az
Инструкция по эксплуатации Страница: 10

Levenhuk skyline 50 x 600 az [10/36] Barlow lens

Operating the mount

The AZ, AZ1, AZ2 mounts are alt-azimuth mounts that allow you to rotate the telescope about the

vertical and horizontal axes and vary its altitude and azimuth. To adjust the azimuth, loosen the big

locking knob under the mount base and rotate the tube left or right about the axis then retighten it.

To adjust the altitude, loosen the altitude adjustment knob and rotate the tube. For more precise

motions, use the altitude slow-motion control.

Due to Earth’s movement, the objects will be constantly shifting out of your view, so you will have to

adjust the altitude and azimuth of your telescope to continue your observations.

Reference materials usually list declination coordinates in degrees, hours and minutes above or below

the horizon line. Azimuth coordinates may sometimes be listed with the compass points (N, SW, ENE,

etc.), but it is more commonly listed in degrees around the 360-deg plane, where north is 0°, east

is 90°, etc.

Barlow lens

A Barlow lens increases the magnifying power of an eyepiece, while reducing the eld of view. It

expands the cone of the focused light before it reaches the focal point, so that the telescope’s focal

length appears longer to the eyepiece. In addition to increasing magnication, the benets of using

a Barlow lens include improved eye relief, and reduced spherical aberration of the eyepiece. For this

reason, a Barlow plus a lens often outperform a single lens producing the same magnication. And the

best advantage is that a Barlow lens can potentially double the number of eyepieces in your collection.

(refractor , reector )

8a 8b

Focusing

Slowly rotate the focus knobs one way or the other until the image in the eyepiece is sharp. The image

usually has to be nely refocused over time due to small variations caused by temperature changes,

exures, etc. Refocusing is almost always necessary when you change an eyepiece, add or remove a

Barlow lens. (refractor , reector )

9a 9b

Camera adapter

To attach a camera to your telescope you may need an adapter to get the camera focused. Some

refractors are designed to be used with diagonal mirrors and thus need a longer focal length when used

with camera.

To achieve that, simply attach an extender to the focuser of your telescope and then attach the

camera with a T-adapter to the extender.

Optical nderscope assembly and alignment

Unthread two screws in the back of the telescope tube. Place the nderscope base above the holes on

the tube. Lock the nderscope base into position by tightening the screws. (refractor

, reector

)

Optical nderscopes are very useful accessories. When they are correctly aligned with the telescope,

objects can be quickly located and brought to the center of the view.

Turn the scope end in and out to adjust focus.

To align the nderscope, choose a distant object that is at least 300 yards (500 meters) away and point

the telescope at the object. Adjust the telescope so that the object is in the center of the view in

your eyepiece. Check the nderscope to see if the object is also centered on the crosshairs. Use three

adjustment screws to center the nderscope crosshairs on the object.

Levenhuk skyline 50 x 600 az [10/36] Barlow lens

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