Coleman AT70

Coleman AT70 AstroWatch Portable 70mm Refractor Telescope Instruction Manual

Setšoantšo sa AT70

1. Selelekela

This manual provides instructions for the proper assembly, operation, and maintenance of your Coleman AT70 AstroWatch Portable 70mm Refractor Telescope. Please read this manual thoroughly before using your telescope to ensure optimal performance and longevity.

The Coleman AT70 AstroWatch telescope is designed for both terrestrial (land-based) and astronomical (sky-based) viewing, offering a maximum magnification of 40 times with its 70mm objective lens. It features easy-to-use horizontal and vertical controls, rack and pinion focusing, and includes a 5x20 finderscope to assist in locating objects.

2. Boitsebiso ba Tšireletseho

  • Never look directly at the sun through the telescope or its finderscope without a professionally manufactured solar filter. Permanent and irreversible eye damage, including blindness, can result.
  • Do not leave the telescope unattended, especially when children are present.
  • Tšoara likarolo tsa mahlo ka hloko ho qoba ho ngoatheha kapa ho senyeha.
  • Ensure the tripod is stable on a level surface before attaching the telescope.

3. Likahare tsa Sephutheloana

Netefatsa hore likarolo tsohle li teng ka har'a sephutheloana sa hau:

  • Coleman AT70 Refractor Telescope Optical Tube
  • Tripod e nkehang
  • Sesebediswa sa ho fumana sa 5x20
  • Eyepieces (20mm and 9mm Kellner)
  • Tray ea Lisebelisoa
  • Padded Cary Case
  • Starry Night CD Software
  • Buka ea litaelo (tokomane ena)

4. Setupo le Kopano

Follow these steps to assemble your telescope:

4.1. Kopano ea Tripod

  1. Unfold the tripod legs and extend them to a suitable height. Ensure the tripod is stable.
  2. Attach the accessory tray to the center brace of the tripod, if applicable, to provide additional stability and a place for eyepieces.

4.2. Attaching the Telescope Optical Tube

  1. Locate the mounting block on the underside of the telescope optical tube.
  2. Align the mounting block with the tripod head and secure it using the provided screw or clamp mechanism. Ensure the telescope is firmly attached and balanced.

4.3. Installing the Finderscope

  1. Slide the 5x20 finderscope into its bracket on the telescope tube.
  2. Tighten the small screws on the bracket to hold the finderscope securely in place.
  3. Note: The finderscope will need to be aligned with the main telescope before use. Refer to Section 5.1 for alignment instructions.

4.4. Inserting an Eyepiece

  1. Loosen the thumbscrew on the focuser drawtube.
  2. Insert either the 20mm or 9mm eyepiece into the focuser.
  3. Gently tighten the thumbscrew to secure the eyepiece. Do not overtighten.
Coleman AT70 AstroWatch Portable 70mm Refractor Telescope assembled on a tripod.

Figure 1: Assembled Coleman AT70 AstroWatch Telescope. This image shows the telescope optical tube mounted on its portable tripod, with the finderscope and an eyepiece attached.

4.5. Starry Night Software Installation

The included Starry Night CD software can be installed on a compatible computer to assist with astronomical navigation and education. Follow the on-screen instructions provided with the software for installation.

5. Ts'ebetso

5.1. Ho Lekanya Finderscope

The finderscope provides a wide field of view to help locate objects before viewing them through the main telescope. It must be aligned with the main telescope first:

  1. During daylight hours, point the main telescope at a distant, easily identifiable object (e.g., a tree top, a distant building).
  2. Beha ntho eo bohareng ba leihlo la teleskopu e kgolo.
  3. Look through the finderscope. Use the adjustment screws on the finderscope bracket to move its crosshairs until they are centered on the same object.
  4. Check the alignment by switching between the finderscope and the main telescope. Repeat adjustments until both are perfectly aligned.

5.2. Pointing the Telescope

Use the horizontal and vertical controls on the tripod mount to move the telescope. These controls allow for fine adjustments to track celestial objects as they move across the sky.

5.3. Ho tsepamisa maikutlo

Once an object is centered in the eyepiece, use the rack and pinion focusing knob to bring the image into sharp focus. Turn the knob slowly until the image is clear.

  • For the 20mm eyepiece, you may find that the eyepiece barrel needs to be slightly extended (not fully inserted) to achieve focus, especially for distant objects.
  • For the 9mm eyepiece, you may need to rack the focuser out to its maximum extent to achieve focus.

5.4. Changing Eyepieces

To change magnification, swap eyepieces:

  1. Loosen the thumbscrew on the focuser drawtube.
  2. Carefully remove the current eyepiece.
  3. Insert the desired eyepiece (e.g., 9mm for higher magnification, 20mm for wider field of view).
  4. Gently tighten the thumbscrew.
  5. Refocus the telescope as needed.

6. Tlhokomelo

6.1. Lilense tsa ho Hloekisa

Optical surfaces should be cleaned as infrequently as possible. When cleaning is necessary:

  • Use a soft brush or compressed air to remove loose dust particles.
  • For smudges or fingerprints, use a specialized optical cleaning solution and a clean, soft microfiber cloth. Apply the solution to the cloth, not directly to the lens. Wipe gently in a circular motion from the center outwards.
  • Avoid touching optical surfaces with your fingers.

6.2. Polokelo

When not in use, store the telescope in its padded carrying case in a cool, dry place to protect it from dust, moisture, and impact. Ensure all caps are placed on the objective lens and eyepieces.

7. Ho rarolla mathata

BothataLebaka le ka khonehangTharollo
Image is blurry or cannot be focused.
  • Focuser not adjusted correctly.
  • Eyepiece not fully inserted or too far out.
  • Atmospheric conditions.
  • Adjust the focuser knob slowly until the image is sharp.
  • For the 20mm eyepiece, try pulling it out slightly from full insertion to achieve focus. For the 9mm eyepiece, ensure the focuser is racked out completely.
  • Wait for more stable atmospheric conditions.
Cannot find objects easily.Finderscope is not aligned.Align the finderscope with the main telescope during daylight hours (refer to Section 5.1).
Image appears dim or dark.
  • Light pollution.
  • Using too high magnification for conditions.
  • Move to a darker viewing location away from city lights.
  • Use a lower magnification eyepiece (e.g., 20mm).

8. Litlhaloso

SebopehoLintlha
Nomoro ea MohlalaAT70
BrandColeman
Mofuta oa sebonela-hōleRefractor
Boikemisetso ba lense bophara70 limilimithara
Bolelele ba Tsepamiso400 limilimithara
Lisebelisoa tsa mahlo li kenyelelitsoe20mm, 9mm (Kellner design)
Sebaka sa marang-rang5x20 Reflex
Mofuta oa TsepamisoManual Focus (Rack and Pinion)
Mofuta oa ThabaThaba ea Tripod
Litekanyo tsa Sehlahisoa (D x W x H)14.5" x 3.5" x 3.5"
Boima ba Ntho1.5 Liponto
Tlhaloso ea ho Koahela LenseAchromatic
Tšimo ea View1.14 likhato
Likarolo tse EketsehilengIncludes Starry Night software for astronomical navigation and education.
Tlhaloso ea Lilemo10+

9. Boitsebiso ba Tiisetso

The Coleman AT70 AstroWatch Portable 70mm Refractor Telescope comes with a 1 Year manufacturer's warranty. Please retain your proof of purchase for warranty claims. For specific terms and conditions, refer to the warranty documentation included with your product or contact Coleman customer support.

10. Tšehetso ea Bareki

If you encounter any issues not covered in this manual or require further assistance, please contact Coleman customer support. Contact information can typically be found on the Coleman websetsheng kapa sephuthelong sa sehlahiswa.

When contacting support, please have your model number (AT70) and proof of purchase readily available.

© 2023 Coleman. Litokelo tsohle li sirelelitsoe.