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Instruction Manual
Explore FirstLight 8" f/6 Dobsonian (FL-DOB0806-01)
Explore FirstLight 10" f/5 Dobsonian (FL-DOB1005-01)
A Dobsonian telescope is designed to capture copious amounts of lights, making it an ideal workhorse for deep-sky
enthusiasts and a great instrument for getting highly detailed views of our planetary neighbors. Although the size of
these telescope models can appear daunting, they can be broken down and transported easily even in small cars and
reassembled within minutes. The FirstLight series includes two Dobsonian models (8" and 10"). Each comes with a 2.5"
Hex focuser, a red dot viewfinder and a 25mm SuperPlossl eyepiece. As an added benefit, each package also includes
an adapter that allows you to use your own smart device to easily capture and share the beauty unfolding in your
eyepiece. With Firstlight, the only thing you need to provide is a desire to discover!
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Summary of Contents for Explore Scientific FirstLight series
- Page 1 The FirstLight series includes two Dobsonian models (8” and 10”). Each comes with a 2.5” Hex focuser, a red dot viewfinder and a 25mm SuperPlossl eyepiece. As an added benefit, each package also includes an adapter that allows you to use your own smart device to easily capture and share the beauty unfolding in your eyepiece.
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Page 2: General Safety Information
General Safety Information SUN WARNING GENERAL WARNINGS: DO NOT use this telescope or any accompanying • Children should only use this device under adult finder scope to look at or near the Sun! Even supervision. momentary visual contact with the Sun’s light rays •... -
Page 3: Package Contents
Package Contents Fig. 1 - 3 -... -
Page 4: Parts Overview
Parts Overview Fig. 2 Inset A Inset B - 4 -... - Page 5 Parts Overview OTA (Optical Tube Assembly) (Fig. 2) 1. Eyepiece 2. Eyepiece holder 3. Aperture 4. Red dot viewfinder 5. OTA bracket (2x) with clamp screw 6. Fixing screws (4x) 7. Altitude wheels (2x) with lateral guids (7a) Base (Fig. 2) 8.
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Page 6: Tools Required
Setup Assembling the Base NOTE! While assembling the base, you will need a Phillips screwdriver, a 2mm hex wrench and an open-end wrench. We recommend assembling on a soft surface to avoid damaging the parts of the base. IMPORTANT! Tools Required Note that the studs are height-adjustable. - Page 7 Setup STEP 5 (Fig. 7): Fig. 7 1. Set up the front part (Fig. 1, F) and put it with the drill holes of the quick fasteners (Fig. 1, M) over the threaded bolts (Fig. 1, L) of the left side part (Fig. 1, C). 2.
- Page 8 Setup Attaching the OTA Fig. 10 STEP 8 (Fig. 10): 1. Attach both altitude wheels (Fig. 1, H) with the fixing screws (Fig. 1, T) to the right and left side of the OTA. NOTE! Make sure that the 'noses' on one side (Fig. 10, X) are pointing in the direction of the clamp screws (Fig.
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Page 9: Installing Accessories
Installing Accessories Inserting the Eyepiece (Fig. 12) Fig. 12 1. Insert the 1.25" eyepiece (Fig. 1, J) into the eyepiece holder (Fig. 12, 15). 2. Tighten the clamp screw (Fig. 12, 17) slightly. 3. Look through the eyepiece and turn the focusing wheel of the focusing drive (Fig. 12, 13) right or left to focus the image. -
Page 10: Using A Dobsonian Telescope
Usage Using a Dobsonian Telescope • Never lubricate the Teflon pads on the ground plate. Your Dobsonian has been designed with some inherent friction. You want the telescope to move easily when you position it, but you also want it to stay in the position you place it. Using any kind of oil, silicone spray, wax, or grease will ruin the performance by causing the telescope to move too easily. - Page 11 Usage Align the Red Dot Viewfinder (Fig. 15) Fig. 15 Once the red dot viewfinder is mounted on the OTA, it is time to align it so that it and the telescope will be centered on the same spot in the sky when it is time to use it. Although the process can be tedious, it is important to follow through on all of the steps to avoid later frustrations that can ruin an observing session.
- Page 12 Usage Observation suggestions The Moon: Diameter: 3,476 km Distance: Approximately 384,401 km The Moon is the Earth’s only natural satellite, and it is the second brightest object in the sky (after the Sun). Although it is our closest neighbor, a lot of people have never really taken a good long like at the Moon.
- Page 13 Usage • Galaxies are gigantic accumulations of stars, nebulae and clusters that are held together by gravity. Galaxies come in several shapes including spiral, elliptical, barred and irregular. The closest spiral galaxy is the Andromeda Galaxy, and it is a great observing target.
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Page 14: Useful Tips
Usage Useful Tips Because of the Earth's rotation all objects in a telescope's eyepiece will seem to drift across the field of view. To compensate for this movement you have to move the telescope smoothly and slowly. The higher the magnification the more accurate this tracking movement has to be. -
Page 15: Maintenance And Cleaning
Maintenance and Cleaning Proper Care Your telescope is a precision optical device and keeping the optics free of dust and dirt is crucial for optimal performance. However, the use of improper cleaning techniques, tools and/or solutions can cause irreparable damage to your telescope. In terms of solutions, use distilled water and/or an optical glass cleaner that can be found at most camera stores. - Page 16 Maintenance and Cleaning NOTE! Do not force the 3 screws (Fig. 22, 2) past their normal travel. Do not rotate the collimation screws more than two full turns in a counterclockwise direction (i.e. not more than two full turns in their "loosening" direction), or else the diagonal mirror may become loosened from its support.
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Page 17: Product Information
Included eyepiece: SuperPlossl 25mm Weight (OTA): 36lbs / 16.3kg Weight (Base): 25lbs / 11.3kg Total weight: 61 lbs/ 27.6kg Optional Accessories BRESSER Messier EXPLORE SCIENTIFIC 10:1 Micro reduction unit 8x50 non-illuminated finder scope with HEXAFOC focuser Item No. VFO8505 Item No. 0625720... -
Page 18: Disposal Information
VIII Disposal Information Dispose of the packaging materials properly, according to their type (paper, cardboard, etc.). Recycle when possible. 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 your device. You can get more information on the proper disposal from your local waste disposal service or environmental authority. - Page 19 - 19 -...
- Page 20 © 2018 Explore Scientific, LLC. 1010 S.48th Street, Springdale, AR 72762 explorescientificusa.com | exploreone.com | 866.252.3811 All rights reserved. Made in China. Rev. 02/19/2018...
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