Περιγραφή
TELRAD illuminated Reflex Finder for Telescopes
The Telrad can be easily attached to almost any telescope and makes it easy to find astronomical objects. It can be used as a supplement to an optical finder scope or as an autarkic finder. As with a red dot finder, you see the complete starry sky without magnification, and not just a small section as with a normal optical finder. Against this background of the starry sky, three red luminous concentric rings are projected, with apparent diameters of 4°, 2° and 0.5° in the sky. Simply swivel the telescope until the object you are looking for is in the inner ring. The telescope is already pointing in the right direction. Because the object you are looking for is inside the ring, it is not outshined like with a normal red dot finder.
Mounting on the telescope
A base is included in the scope of delivery of the TELRAD. The base of the TELRAD finder is self-adhesive and can be attached to all telescope tubes with a diameter of 10 cm or more. The base can also be mounted on flat surfaces. The length of the base is about 18 cm. This base remains on the telescope tube, the TELRAD finder itself can be removed or attached at any time by means of the attached quick coupling. Alternatively, fastening with screws (the base has two 4 mm diameter fastening holes) or retaining straps is also possible.
Using the Telrad is as simple as that
After the base of the Telrad is fixed to the telescope and the batteries are inserted, you can adjust the Telrad parallel to the telescope with 3 knurled screws at the back. For this, turn the knob under the glass and you will see the three rings. The further you turn the knob, the brighter the circles become. Now you can move the circles with the mentioned screws. After this initial adjustment, which usually has to be done only once, you can start immediately.
