BRESSER ED APO OTA Tube optique Instruction Manual

BRESSER ED APO OTA Tube optique Instruction Manual

Imprint (German)

Bresser GmbH Gutenbergstr. 2 46414 Rhed
Germany http://www.bresser.de

For any warranty claims or service enquiries, please refer to the information on “Warranty” and “Service” in this documentation. We apologize for any inconvenience caused by the fact that we cannot process enquiries or submissions sent directly to the manufacturer’s address.

Errors and technical changes excepted.

© 2020 Bresser GmbH

All rights reserved.

The reproduction of this documentation – even in extracts – in any form (e.g. photocopy, print, etc.) as well as the use and distribution by means of electronic systems (e.g. image file, website, etc.) without the prior written permission of the manufacturer is prohibited.

The designations and brand names of the respective companies used in this documentation are generally protected by trade, trademark and/or patent law in Germany, the European Union and/or other countries

Features

• 3-element apochromatic optics with air gap and ED element
• Objective lens made of selected optical glass (FCD-1,FCD-100,FPL53)*
• All lens surfaces have a high performance multi-coating
• Lightweight high quality optical tube made of aluminum or carbon-fiber
• Precise Hexafoc focuser with high load capacity and 10:1 micro drive
• Universal mounting rail
• Dew shield
  depending on model

About this Instruction Manual

NOTICE

These operating instructions are to be considered a component of the device.
Read the safety instructions and the operating manual carefully before using this device.

Keep this instruction manual in a safe place for future reference. When the device is sold or given to someone else, the instruction manual must be provided to the new owner/user of the product.

Intended Use

• This device is not intended for use by persons (including children) with impaired physical, sensory or mental abilities, or for lack of experience and/or knowledge, unless they are supervised by or have received instructions from a person responsible for their safety on how to use this device.
• This device is for personal use only.
• It was developed for the magnified display of things in nature.

General safety instructions

DANGER

Risk of blindness!

Never look directly at, or near the sun with this device. There is a RISK OF BLINDNESS!

DANGER

Danger of suffocation!

Improper use of this product may result in suffocation, especially for children. It is therefore imperative that you observe the following safety information.

• Keep packaging materials (plastic bags, rubber bands, etc.) away from children! There is a DANGER OF CHOKING [These pose a CHOKING HAZZARD]
• This product contains small parts that can be swallowed by children! There is a DANGER OF CHOKING [These pose a CHOKING HAZZARD]

CAUTION

Fire hazard!
Improper use of this product may result in fire. It is essential that you observe the following safety information in order to avoid fires.

• Do not place the device, particularly the lenses, in direct sunlight. The concentration of light could cause a fire.

NOTICE

Danger of material damage!
Improper handling may result in damage to the unit and/or accessories. Therefore, use the device only in accordance with the following safety information.

• Do not disassemble the device! In the event of a defect, please contact the after sales support number listed below.
• Do not subject the device to excessive vibrations.
• Do not expose carbon fiber components to direct sunlight for long periods of time. Excessive exposure to the sun may damage the material.
• Do not expose the device to high temperatures and protect it from water and high humidity.

NOTICE

Privacy Protection
Respect the privacy of your fellow human beings – do not look into flats with this device, for example!

Product images

Scope of delivery

Optical tube assembly (OTA) (A); Tube bracket with fixing screws (pre- assembled) (B); 1 eyepiece (C); diagonal mirror (D); viewfinder (E) (depending on constructional limitations, not for 80mm models)

Parts overview

1not for 80mm models2only for 80mm models

Optional accessories (depending on model)3:

3not included with all models

Choice of location

Select a suitable location before installation and commissioning.

Place the unit on a stable, level and vibration-free surface.

Installing the tube bracket

Illustration 2: Apochromat_Inst_tube_bracket

1. Optical tube assembly
2. Tube bracket
3. Fixing screws for tube brackets1
4. Prism rail (Mount)
5. Focusing unit

1not for 80mm models

1. Place the tube bracket with its prism rail facing downwards on a solid surface.
2. Loosen the fixing screws of the tube bracket and open it.
3. Place the optical tube in the lower part of the tube bracket. The lower part of the focusing unit must be parallel to the prism rail.
4. Fold the upper part of the tube bracket* over the optical tube.
5. Fold up the fixing screws and pull it over the hooks of the tube bracket.
6. Tighten the fixing screws by hand that optical tube is fitted in the tube bracket in a safe way and can not slip.
   (*depending on constructional limitations, not for 80mm models)

Installing accessories

Illustration 3: Apochromat_Inst_acc

1. Viewfinder

2. Viewfinder holder (prism rail)

3. Fixing screws (viewfinder holder)

4. Eyepiece

5. Diagonal mirror

6. Fixing screws (diagonal mirror)

7. Eyepiece holder

8. Fixing screw (eyepiece holder)

9. Eyepiece holder

10. Distance sleeve

11. Eyepiece extension

12. Loosen fixing screw.

13. Insert the desired accessory into the eyepiece holder.

14. Tighten the fixing screw by hand that the accessory ist fixed in a secure way.

NOTICE

Using the distance sleeve
When using a camera or certain accessories, a extension of the eyepiece holder with a distance sleeve is recommended. For this, remove the eyepiece holder from the eyepiece extension and replace by one or more extension sleeves. Screw again the eyepiece holder onto the extension sleeve. (depending on the model a dust protection cover and box can be part of the content).

Adjusting and focusing the eyepiece extension

NOTICE

Do not move the focus wheel beyond the end point when the clamping screw is tightened!
Eyepiece extension and gear parts may be damaged. Loosen the clamping screw before focusing. When the end point is reached (slight resistance when turning), do not turn the eyepiece slide further out.

1. Loosen or tighten the adjusting screw in order to make the optimum adjustment for the gear backlash in such a way that a smooth focusing without “slipping” of the eyepiece extension is ensured.
   Do not overtighten the adjusting screw!

2. Tighten the clamping screw to fix the eyepiece extension (e.g. for photographic purposes).

3. Loosen the clamping screw to release the eyepiece extension and adjust the focus with the focus wheel.

Cleaning and maintenance

NOTICE

Never take the objective out of its socket and do not modify its adjustment screws.
It is not possible to reinstall the objective in an accurate manner without specialist knowledge. A significant reduction of the optical performance is the result. In this case the warranty claims become void!

NOTICE

Do not use aggressive cleaning agents!
Do not use photographic lens cleaners and no perfume-impregnated, dyed or lotion-soaked cloths to clean optical surfaces. By the use the optics can take permanently damage!

• Protect the device from dust and moisture!
• Avoid fingerprints and similar contamination of the optical surfaces.
• The residual moisture must be completely degraded before use.
• Do not clean the optics too often! A little dust on the front of the lens or mirror surface will not significantly reduce the image quality. This is no reason for cleaning.
• If necessary, carefully remove dust on the front of the lens or mirror surface with a camel hair brush or blow away with compressed air.
• Remove organic soiling (e.g. fingerprints) with a cleaning liquid (mixing ratio: three parts distilled water, one part isopropyl alcohol). Add a small drop of biodegradable dishwashing detergent per half liter of cleaning liquid. Use soft, white face tissues and carefully clean surfaces with short, radial wiping movements. Replace the tissues as often as possible.
• If the air humidity is high, the glass may fog up and moisture may form. This is not a defect! In this case, allow the device to acclimatise at room temperature for some time so that the residual humidity can be reduced.
• Once the residual moisture has been completely removed, fit the dust caps and store the telescope in a closed container* in a dry, mould-free place. It is recommended to store accessories in a closed container with desiccant.
• (Depending on the model, a case may already be included in the scope of delivery)

Disposal

Dispose of the packaging materials properly, according to their type, such as paper or cardboard. Contact your local waste-disposal service or environmental authority for information on the proper disposal.

Please take the current legal regulations into account when disposing of the device! Get more information on the proper disposal from the local waste- disposal service or environmental authority.

Warranty

The regular guarantee period is 10 years and begins on the day of purchase. You can consult the full guarantee terms and details of our services at www.bresser.de/warranty_terms.

Service

Please contact the service centre first for any questions regarding the product or claims, preferably by e-mail.
e-mail: service@bresseruk.com
Telephone*:+44 1342 837 098

Bresser UK Ltd
Customer Service Explore Scientific Suite 3G, Eden House Enterprise Way Edenbridge, Kent TN8 6HF
United Kingdom

Number charged at local rates in the UK (the amount you will be charged per phone call will depend on the tariff of your phone provider); calls from abroad will involve higher costs.

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