Bedienungsanleitung Bresser AR-90 (Seite 10 von 44) (Englisch)

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Looking at or near the Sun will cause instant and irreversible damage to your eye!

Attach viewfinder bracket

(Abb. 9b). Locate the viewfinder bracket screws

(15, Fig. 1b and Fig. 9a) and remove the nuts from the screws. Slide

the holes in the viewfinder bracket over the viewfinder bracket screws.

Replace the nuts and tighten to a firm feel only.

9a. Attach viewfinder tube:. Back off the viewfinder collimation screws (5,

Fig. 1b) and slide the viewfinder tube into the bracket. Orient the view-

finder eyepiece as depicted in Fig. 1b. Tighten the collimation screws to

a firm feel. See Aligning the viewfinder, page 14.

10. Insert the eyepiece: NT models (Fig. 10a): Lift to remove the dust cap

from the eyepiece holder on the focuser assembly. Set the dust cap

aside in a safe place and replace it when you have finished observing

to protect the eyepiece assembly. Back off the eyepiece thumbscrews

(1, Fig. 1a) and insert the supplied 25mm eyepiece (3, Fig. 1a) into the

the eyepiece holder. Tighten the holder thumbscrews to a firm feel to

secure the eyepiece. AR models (Abb. 10b): Lift to remove the dust cap

from the eyepiece holder on the focuser assembly. Set the dust cap

aside in a safe place and replace it when you have finished observing

to protect the eyepiece assembly. Back off the eyepiece thumbscrews

(1, Fig. 1b) and slide the diagonal prism into the holder and tighten the

thumbscrews to a firm feel only. Insert the supplied 25mm eyepiece (3,

Fig. 1b) into the the diagonal prism. Tighten the prism‘s thumbscrews to

a firm feel to secure the eyepiece.

11. Adjust the height of the tripod: Adjust the height of the tripod by

loosening the tripod lock knobs (Fig. 11). Extend the sliding inner

section of each tripod leg to the desired length; then tighten each knob.

Adjust the tripod to a height that is comfortable for viewing.

13. The 2” focusers of the Messier Series from AR-102 or NT-130 on have

a built in extension tube. Depending on the accessories used, or when

using a camera, it might not be possible to reach the focus. Focus tra-

vel to the inside might not be sufficient in the standard configuration.

To reach focus, unscrew the eyepiece holder, then the following 25mm

extension tube. Screw the eyepiece holder back in place.

Fig. 10b: Insert eyepiece into

diagonal prism and tighten

thumbscrews.

Eyepiece

Holder

Thumbscrews

Diagonal

prism

Viewfinder

Fig. 10a: Insert eyepiece intor holder

and tighten thumbscrews.

Eyepiece

Holder

Thumbscrew

Viewfinder

Fig. 11: Adjust the tripod height

using the leg lock knob.

Leg lock knob

Fig. 9b: The finder scope assem-

bly has a dovetail bracket, that

fits the holder that is mounted on

the optical tube.

as s e m b l I n G ex o s 1

* Optional accessory for Exos 2

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