Bresser 175x User Manual download pdf (Page 11)

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4. Accessories tray

Hold the accessories tray (10) against the fastening devices (22) on the

tripod legs. Screw the three butterfly screws (12) from below through the

fastening devices in the tray (No. 7).

5. Tube

Hold the telescope's main tube (1) as shown, in the middle of the alt-azimuth

mount (9), and screw the screws (8) into the tube from both sides (No. 8).

6. Vertical fine adjustment

To mount the vertical fine adjustment (17), first push the adjustment rod

through holding device (X) on the mount (No. 9a).

Then undo the screw (Y) for the adjustment rod, and insert it on the other end

of the rod. Then tighten it in place (No. 9b).

Important: Do not overtighten the vertical fine adjustment fastening

screw. If you do, the main tube will not be vertically adjust

able.

Risk of bodily injury!

Never use this device to look directly at the sun or in

the direct proximity of the sun. This will result in a risk of

blindness.

7. Assembling the finder scope/LED finder scope

Note: The LED finder scope's battery is safeguarded against dis

charge with plastic foil when shipped. The foil must be removed

before first use (No.1d).

7.1. Finder scope installation (type I):

Finder scope with threaded mounting

The finder scope and finder scope mount (No. 1a, 2) are included in the

packaging.

Remove the finder scope mount fastening screws on the main tube (No.

1a, 14), and set the mount onto the projecting screws on the telescope's

main tube. Carefully reinsert and tighten the screws previously removed to

securely fasten the finder scope mount in place.

Now, undo the finder scope adjusting screws (No. 1a, 3) — 3 or 6 of them

depending on finder scope model — until the finder scope can easily be slid

into its mount.

Important: Make sure the finder scope lens points toward the main

tube end (No. 1, 4).

Retighten the screws equally to securely fasten the finder scope in place.

7.2. Finder scope assembly (type II):

LED finder scope with screw threading

To assemble the LED finder scope (No. 1b, 2), remove the LED finder scope

fastening screws on the telescope's main tube (No. 1c, 14). Set the LED

finder scope onto the projecting screws on the telescope's main tube. Then

carefully reinsert and tighten the screws previously removed to securely

fasten the LED finder scope in place.

Important: Make sure the LED finder scope lens points towards the

main tube end (No. 1, 4).

7.3. Finder scope assembly (type III):

LED finder scope with Quick Insert

The LED finder scope (No. 1b, 2) and mount constitute a single unit. Slide

the foot of the LED finder scope completely into the appropriate base on

the telescope's main tube (No. 10, X). The finder scope mount will snap in

place.

Important: Make sure the LED finder scope lens points towards the

main tube end (No. 1, 4).

7.4. Finder scope assembly (type IV):

Finder scope with Quick Insert

The finder scope and its mount are preassembled and included in the

packaging.

Slide the finder scope mount foot entirely into the appropriate base on the

telescope's main tube (No. 10, X). The finder scope mount will snap in

place.

Important: Make sure the LED finder scope lens points towards the

main tube end (No. 1, 4).

There are two clamping screws (No. 1c, 14) and a spring-loaded counter

screw on the finder scope mount. Evenly tighten the clamping screws until

resistance is felt to securely fasten the finder scope in place.

8. Aligning the finder scope

8.1 Aligning types I and IV (finder scopes)

The finder scope must be adjusted before use; the finder scope and the

telescope's main tube must be aligned parallel to one another.

Insert the eyepiece with the greatest focal length into the zenith mirror

(12b, refracting telescopes only) or directly into the eyepiece supports (No.

13, reflecting telescopes only). Point the telescope at a significant object

approximately 300 metres away (e.g. a house gable, church tower top or

building facade) and adjust until the object appears in the centre of the field

of vision (No. 15a, A).

Look through the finder scope and align it by turning the 3 or 6 adjustment

screws until the object is visible in the middle of the crosshairs. The image

you previously saw through your telescope lens must be visible exactly in

the centre of the finder scope (2) crosshairs in order to align properly (No.

15a, C).

HINT:

Some finder scopes have no integrated optical image

reversion. The image in these finder scopes will be upside

down. This is not a fault.

8.2 Aligning types II and III (LED finder scopes)

The LED finder scope must be adjusted before use; the LED finder scope

and the telescope tube must be aligned parallel to one another.

Insert the eyepiece with the greatest focal length into the zenith mirror (No.

12b, refracting telescopes only) or directly into the eyepiece supports (No.

13, reflecting telescopes only). Point the telescope at a significant object

approximately 300 metres away (e.g. a house gable, church tower top or

building facade) and adjust until the object appears in the centre of the field

of vision (No. 15b, A).

Then turn the LED finder scope (2) on using the On/Off switch (No. 1b, Z).

Select setting 2 for daytime or setting 1 for nighttime.

Look through the LED finder scope and align it by turning the horizontal (No.

1b, X) and vertical (No. 1b, Y) adjustment screws until you see the red dot

in the centre of the image (No. 15b, C). The finder scope and telescope are

now aligned.

9. Protection caps

In order to protect the inside of your telescope from dust and dirt, the tube

opening is protected by a dust-protection cap (No. 11, X).

To use the telescope, remove the cap from the opening.

10. Inserting the eyepiece

10.1. On refracting telescopes

Two eyepieces (18) and a star diagonal prism (19) are supplied with this

telescope.

The eyepieces allow you to decide which magnification you want your tel-

escope to have.

Before you insert the eyepiece and the star diagonal prism, you must remove

the dust-protection cap from the eyepiece connection tube (6). Loosen the

screw (No. 12a, X) on the eyepiece connection tube and insert the star

diagonal prism. Retighten the screw (X) on the eyepiece connection tube.

Release the clamping screw (No. 12b, X) to fasten the 20 mm eyepiece into

the zenith mirror in the same way, and then retighten the clamping screw to

secure the eyepiece in place.

Make sure that the eyepiece is pointing vertically upward. If it is not, loosen

the screw (No. 12a, X) on the eyepiece connection tube and rotate the star

diagonal prism into the vertical position. Remove the dust cap from the main

tube end.

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Bresser 175x User Manual Page 11

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