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10 new_english, Operating your telescope, Ligning the finderscope – Sky-Watcher EQ3GOTO MOUNT User Manual

Page 10: Sing the red dot finderscope

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10

A

ligning the finderscope

OPERATING YOUR TELESCOPE

Fig.a

Fig.a1

The finderscope (optical or red dot) is a very useful accessory

that is included with your telescope. When the finderscope is

correctly aligned with the telescope, objects can be quickly

located and brought to the centre of the field. Alignment is best

done outdoors in day light when it's easier to locate objects. If

it is necessary to refocus your finderscope, sight on an object

that is at least 500 yards (metres) away. Loosen the locking

ring by unscrewing it back towards the bracket. The front lens

holder can now be turned in and out to focus. When focus is

reached, lock it in position with the locking ring (Fig.a).

Choose a distant object that is at least 500 yards away and

point the main telescope at the object. Adjust the telescope

so that the object is in the centre of the view in your

eyepiece.

Check the finderscope to see if the object centred in the

main telescope view is centred on the crosshairs.

Adjust the two small screws to centre the finderscope

crosshairs on the object (Fig.a1).

1)

2)

3)

Fig.b1

U

sing the Red Dot Finderscope

The Red Dot Finder is a zero magnification pointing

tool that uses a coated glass window to superimpose

the image of a small red dot onto the night sky. The

Red Dot Finder is equipped with a variable brightness

control, azimuth adjustment control, and altitude

adjustment control (Fig.b). The Red Dot Finder is

powered by a 3-volt lithium battery located underneath

at the front. To use the Finder, simply look through the

sight tube and move your telescope until the red dot

merges with the object. Make sure to keep both eyes

open when sighting.

Azimuth

adjustment

control

ON/OFF

Brightness

Control

Altitude

Adjustment

Control

Battery cover

Sight Tube

Plastic

shipping

cover

Aligning the Red Dot Finder
Like all finderscopes, the Red Dot Finder must be

properly aligned with the main telescope before use.

This is a simple process using the azimuth and altitude

control knobs.

Open the battery cover by pulling it down (you can

gently pry at the 2 small slots) and remove the

plastic shipping cover over the battery (Fig.b1).

Turn on the Red Dot Finder by rotating the variable

brightness control clockwise until you hear a "click".

Continue rotating the control knob to increase the

brightness level.

Insert a low power eyepiece into the telescope's

focuser. Locate a bright object and position the

telescope so that the object is in the centre of the

field of view.

With both eyes open, look through the sight tube at

the object. If the red dot overlaps the object, your

Red Dot Finder is perfectly aligned. If not, turn its

azimuth and altitude adjustment controls until the

red dot is merged with the object.

1)

2)

3)

4)

Fig.b