ESSLNB 500114 Astronomical Reflector Telescope Instruction Manual

ESSLNB 500114 Astronomical Reflector Telescope

Specifications

• Model: 500114
• Type: Astronomical Telescope
• Parts:
  • A. Focusing Knob
  • B. Eyepiece
  • C. Red Dot Finderscope
  • D. Main Optical Tube
  • E. Tripod Head Screw
  • F. Compass
  • G. Aiming control & lock
  • H. Azimuth Locking Screw
  • I. Tripod Leg
  • J. Accessory Tray
  • K. Leg locks
• Included Accessories:
  • A. Adjustable Altitude-Azimuth Tripod
  • B. Main Optical Tube
  • C. K10 Eyepiece
  • D. K20 Eyepiece
  • E. 3X Barlow Lens
  • F. Moon Filter
  • G. Remote Control
  • H. Remote Control Manual
  • I. Phone Adapter
  • J. Red Dot Finder Scope
  • K. Accessory Tray
  • L. Constellation Diagram

Introduction

ESSLNB astronomy telescope can let you enjoy and explore both terrestrial and celestial objects in nature as well as a lot of fun. Our manufacturer promises that it is a kind of high-end product with non-polluting and non-toxicity substances, each of whose materials have passed the professional certification to be harmless to the human body. Please read this instruction manual carefully and completely. There is a lot of important information you need to know to give the best effect from your telescope.
If you need help in assembling or operating your telescope, you may contact us by email. We will reply to you as soon as possible.
Let’s go on a wonderful journey to operate our telescope. Wish you will love it.

What is a telescope?

• A telescope is an optical system designed to magnify distant objects. The telescope you have purchased is called a REFLECTOR TELESCOPE. It consists of an open tube with a curved mirror at the bottom. The open end of the tube is pointed at the object in the sky and the entering light rays strike the mirror at the bottom.
• The rays reflect from the mirror and strike a second mirror called a diagonal. As a result of the curvature of the main mirror, the light rays are bent to meet at a point. The mirror in a reflector telescope must be painstakingly ground to the proper curvature to achieve the correct focal point.
• The purpose of the diagonal mirror, which is located a short distance before the focal point, is to reflect the light rays toward the side of the tube where an eyepiece magnifies the image for you. This telescope has an Altitude-Azimuth Tripod. It is extremely versatile because it allows the telescope to move in all directions, which makes it possible to move the telescope while you are looking through it.

Telescope Parts

• A. Focusing Knob
• B. Eyepiece
• C. Red Dot Finderscope
• D. Main Optical Tube
• E. Tripod Head Screw
• F. Compass
• G. Aiming control & lock
• H. Azimuth Locking Screw
• I. T ripod Leg
• J. Accessory Tray
• K. Leg locks

What’s in the package

• A. Adjustable Altitude-Azimuth Tripod
• B. Main Optical Tube
• C. K10 Eyepiece
• D. K20 Eyepiece
• E. 3X Barlow Lens
• F. Moon Filter
• G. Remote Control
• H. Remote Control Manual
• I. Phone Adapter
• J. Red Dot Finder Scope
• K. Accessory Tray
• L. Constellation Diagram

WARNING: TO AVOID ANY EYE INJURY NEVER LOOK DIRECTLY INTO ANOTHER OPTICAL INSTRUMENT THROUGH THE TELESCOPE AND NEVER OBSERVE THE SUN WITH UNPROTECTED EYES!

Instruction For Assembly

1. Extend the tripod legs to desired length by opening the screw.
2. Gently pull the tripod a part and close the screw.
3. Attach the accessory tray to the flanges of the tripod legs by rotating it until fix in the groove according to hole shape.
4. Put the main body into the tripod head and turn the screw knob until fix it.
5. Insert the finder scope into the bracket.
6. Loosen the thumb screw. Insert the eyepiece into the diagonal lens.Then tighten it.
7. Insert balow lens between eyepiece and the focusing tube. Maybe it’s better effect between eyepiece and focusing tube without diagonal lens.Dependingonyourneed.
8. Install phone adapter. Take off your phone case and put your phone on the adapter. Connect the adapter head with eyepiece and rotate it tightly.

Telescope Use

AlTITUDE-AZIMUTH MOUNT
The telescope is fitted with an Altitude-Azimuth mount. “Altitude” refers to the telescope’s up and down or vertical movement,while “Azimuth” refers to its sideways or horizontal movement.The Altitude Azimuth mount used in conjunction with the micro adjustable Altitude control and Azimuth Lock, lets you see the entire night sky or any celestial body without having to move the tripod.

FINDER SCOPE ALIGNMENT
Since a telescope has a narrow field of view by design, it can be challenging to locate a particular star or planet. For this reason the telescope is fitted with a low-power, wide-field miniature telescope called a finder scope. Always use your finder scope to locate the object you want to view FIRST. The finder scope should be aligned with the main telescope tube before you begin using the telescope, in order that both scopes are positioned to always provide exactly the same angle and view.

ABOUT MAGNIFICATION
The magnification power of a telescope indicates how much an image is enlarged or how big and close it appears to the viewer. The focal length of the eyepiece, combined with the focal length of the telescope, determines the magnification power. To calculate the power of your telescope with any particular eyepiece, simply divide the focal length of the telescope (500 mm) by the focal length of the eyepiece (indicated in “mm” on the eyepiece collar).

BARLOW LENS
The Barlow lens increases the magnification factor provided by the telescope. A 3X Barlow lens will therefore triple the telescope’s magnification power. Consequently it is possible to triple a 25X magnification factor to increase it to 75X using a 3X factor Barlow lens. The highest magnification factor Barlow lens should only be used for very bright, large objects such as the moon and the brightest planets or during nighttime observations when conditions are optimal.Do not use the Barlow lens and the eyepiece extension in conjunction with the angle prism for this combination leads to especially low resolution and results in the inability to properly focusing viewing. If the Barlow lens to the focusing tube, then fit the required eyepiece directly onto the Barlow lens. Focusing is then performed in the usual way.

BLUETOOTH REMOTE SHUTTER

1. Turn the Bluetooth shutter switch to the “on” position, turn on the phone’s Bluetooth and search, connect to the device named “AB Shutter3”. Turn on the phone camera, and press the camera button on the Bluetooth shutter to take pictures.
2. When the Bluetooth shutter battery is exhausted, open the rear battery cover and replace the CR2032 button battery.

USING YOUR TELESCOPE

1. Take your telescope outside. Viewing objects through closed or open windows is not recommended. Your view can be distorted by reflections in the glass of a closed window or by air currents of differing temperatures passing through an open window.
2. Let your telescope adjust to the outside temperature. Your telescope will perform much better if the temperature of the mirrors, eyepiece lenses, and the air in side the tube are the same as the outside temperature. It may take up to 30 minutes to equalize the temperatures when the difference in temperatures is extreme.
3. Find a location far from glaring light. If you live in an urban area, your viewing will probably improve the farther you move away from the city lights. The sky glow of a town or city can dramatically reduce the telescope’s performance and viewing capabilities.
4. Remove the dust cap from the end of the telescope nearest the eyepiece holder and the finder scope. The open end of the optical tube is pointed toward the subject you wish to observe.
5. Begin your viewing session by using the K20mm eyepiece by itself. It will give you the widest angle and the brightest, sharpest views. To adjust the angle of the telescope, loosen the tightening screws on either side of the mounting yoke and the azimuth locking knob. If you wish to adjust the angle of the telescope tube vertically in large increments, also loosen the tightening knob that holds the vertical fine adjustment rod. For fine vertical motions, gradually tighten the knurled knob on the vertical fine adjustment rod.

TIPS

1. Always start viewing with your 20mm eyepiece. This is your low power eyepiece and its wide viewing field will make it easier to locate objects. By the way, you will notice that stars, when seen through your telescope, still look like points of light. This is because they are so far away. Even the largest telescopes show stars only as bright points.
2. Once you have located an object and the view is clear you may wish to change to the high power eyepiece. You will notice that your object looks bigger, but not as bright as seen with the 20mm eyepiece. This is normal. If the viewing conditions are not good the high power image may not appear sharp or stable. If this happens, switch back to the 20mm eyepiece and try the high power eyepiece another night. You can also achieve higher power by inserting the 3X Barlow lens between the telescope and either eyepiece. This triples the available power.
3. When possible, avoid sudden temperature changes, as the moisture in the air will condense on the mirrors and eyepiece lenses. Should this occur after bringing your telescope inside, remove the dust caps and allow the moisture to evaporate naturally. Point the telescope downward to minimize the collection of airborne dust. Once all of the moisture has evaporated, replace the dust caps.

CARE AND CLEANING OF OPTICS
Optical components of a telescope get dirty over time. Dirt or dust on a lens should be removed with the utmost care. A considerable amount of dirt or dust would have to accumulate on the optical surface before your view would be compromised.

1. Keeping dust caps on during storage and transport will reduce dust collection.
2. Condensation may collect on the optical surfaces when the telescope is not in use. Remove the dust caps and allow the moisture to evaporate naturally. Point the telescope downward to minimize the accumulation of airborne dust.
3. Once all moisture has evaporated, replace the dust caps.
4. Filtered, compressed air may be used to remove surface dust from lenses and mirrors. Remove the dust cap and the dew shield. Once removed, point the can away from the lens and gently expel some air and any condensation or dust that has accumulated on the discharge tube. Spray the lens or mirror with short bursts of air to carefully remove the dust particles. DO NOT HOLD THE TRIGGER OF THE COMPRESSED AIR CAN FOR EXTENDED PERIODS BECAUSE PROPELLANT FROM THE CAN MIGHT ESCAPE AND DAMAGE THE OPTICAL SURFACE.

If, after several attempts, you cannot remove the particles, take the telescope to an optical professional for cleaning.
If you keep the dust caps on your telescope when it is not in use and avoid handling the lenses or mirrors, only minimal optical maintenance of your telescope should be required. Extensive cleaning is usually only necessary every few years.

FREQUENTLY ASKED QUESTIONS

1. How far can I see?
   If you stand outside and look up at the night sky on a clear evening, you can see hundreds of stars without the aid of your telescope. The telescope is a light-gathering instrument that magnifies the view-providing significantly more detail and unveiling more stars, nebulae, and celestial objects. With the aid of a telescope, you will be able to enjoy exciting views of Saturn’s rings, Jupiter’s major moons, the Orlon Nebula, and much more.

2. Why can’t I see anything through my telescope?
   If you see only gray or black when looking through your telescope, eve n after searching for an object to view, it is very likely that you are using an eyepiece that is too powerful. To solve this problem always start with the lowest power eyepiece first, and only insert the higher-power eyepiece after you have located an object.

3. When I use my high-power eyepiece, everything looks much darker. Why?
   As magnification in a telescope increases, brightness diminishes. Conversely, brightness increases when magnification is reduced. If an image appears too dark or unclear, use a lower-powered eyepiece. Views of small, bright objects are superior to those of large, dark, or blurry ones! Atmospheric conditions, air currents, as well as light and air pollution also affect viewing quality.

4. As I look through my telescope, objects in the sky appear to move. Why is that?
   The constant rotation of the Earth makes things appear to move. Lower-power eyepieces will reduce this effect of movement considerably and allow you to observe an object for a longer duration before you have to readjust your telescope.

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