888-471-9991 Or Visit us in person! Welcome visitor you can login or create an account. Name (A - Z) Name (Z - A) Price (Low > High) Price (High > Low) Model (A - Z) Model (Z - A) Add to Wish List TerraStar 90 Altazimuth Refractor StarNavigator 102mm Refractor with GOTO LX850-ACF 130mm f/7 Triplet APO Refractor - 0130-85-01 ETX-80AT-TC BB Achromatic Refractor with Backpack 8" LX200-ACF f/10 Advanced Coma-Free w/UHTC 20-60x 60mm UpClose Spotting Scope 20-60x 60mm 45 Degree UpClose Spotting Scope 15-45x 50mm UpClose Spotting Scope 15-45x 50mm 45 Degree UpClose Spotting Scope 130mm Series 6000 ED Triplet APO 115mm Series 6000 ED Triplet APOHere are some experiments I conducted with astrophotography. I am still learning. My equipment increased over time: A Meade 60EQ-A equatorial refracting telescope A Meade ETX-80 Backpack edition A Meade 2120 (10" SCT) old but powerful A Fujifilm Finepix 4700 digital camera (I had it already before I got interested in astronomy) .

I did my first experiments with this camera. It is not well suited for astrophotography because it only allows for up to 3s exposure time. A Panasonic DMC-TZ1 camera that I specifically purchased for astrophotography because it allows for up to 1 min exposure time. A Nikon Coolpix 995 that I purchased specifically for afocal astrophotography. My newest camera is a used Canon 300D. I purchased this camera from eBay because it can be converted to accept Minolta MD/MC Rokkor lenses. I had many Minolta Rokkor lenses from my young adulthood days when I used a Minolta XD7 film camera. This digital SLR camera is amazing. See the newer images. I purchased a new telescope mount (Vixen Great Polaris clone). It come without motors. Thus, I purchased some add on motors that allow to track in RA direction for astrophotography. It is a nice and sturdy mount. Instruction Manual ETX-90EC Astro Telescope ETX-125EC Astro Telescope Meade Instruments Corporation... ETX-90EC: 8 x 21mm Erect-Image Viewfinder ETX-125EC: 8 x 25mm Right-Angle Viewfinder 3.

Eyepiece holder thumbscrew 4. 90° eyepiece holder 5. Optical tube: ETX-90EC: 90mm clear aperture ETX-125EC: 127mm clear aperture 6. jual okiedog backpackVertical (or Declination) lock 7. vortex 4500 backpack for saleFork-mount attachment screws 8.zicac backpack Page 3: Table Of Contentsvstr backpack buy5 Telescope Features ......icarly backpack target6 Quick Tips .dukane backpack Moderate Slow Use the arrow keys (H) of the Electronic Controller to move the telescope up and down and/or left and right.

To change the telescope’s slew speed, press the SPEED key (I). The indicator lights signify the speed, with the upper light showing the highest speed. Each press slows the speed down one level, then cycles back to the highest speed. Page 5: Introduction, The Electronic Controller, Assembly Instructions Assembly of both ETX model telescopes requires eight (user- supplied) AA-size batteries and the following steps: 1. a. ETX-90EC 8 x 21 mm Viewfinder: Slide the eyepiece end of the viewfinder through the front of the viewfinder bracket (1, Fig. 3). Page 6: Chapter 1: Getting Started, Telescope Features, Quick Tips, Telescope Controls, Computer Control PanelTurning the vertical lock c o u n t e r c l o ckwise unlocks the telescope enabling it to be freely rotated by hand about the vertical axis. Page 7: First Observations, Observing With The Electronic Controller 1. Set the telescope on a level and stable surface, or mount to Blinking the Meade #883 Deluxe Field Tripod (see O P T I O N A L ACCESSORIES, page 17).

2. Insert a low-power eyepiece (e.g., SP 26mm) into the eyepiece holder (4, Fig. Page 8: The Viewfinder, Focusing The Viewfinder, Aligning The Viewfinder, Using The Viewfinder ETX-90EC 8 x 21 mm Erect-Image Viewfinder: Standard equipment with the ETX-90EC, the 8 x 21mm Erect- Image Viewfinder has 8-power magnification and an aperture of 21mm. This viewfinder presents a correctly oriented image both up-and-down and left-to-right. Page 9: Chapter 2: Telescope Fundamentals, Introduction, Choosing An Eyepiece, Understanding Magnification, Telescope MountingsFor example, the ETX-90EC’s focal length is 1250mm, or about 49”. This means that if the ETX–90EC were a classical refracting- type of telescope, its optical tube would be more than four feet long instead of the ETX–90EC's compact 11”... Page 10: Terrestrial Observing, Astronomical Observing, Sidereal Rate, Slew SpeedsThe speed at which the stars move is called the sidereal rate. Never use a Meade ETX Astro Telescope to look at the Sun!

Looking at or near the Sun will cause instant and irreversible damage to your eye. Eye dama ge is often painless, so there is no warning to the observer that damage has occurred until it is too late. Page 11: The Electronic Controller, Modes Of Operation, Using The Mode Screws, Electronic Controller Modes (2) Removing either A or B screw affects only the telescope’s default mode; you may still make mode changes at will during telescope operation using the MODE key (see E l e c t ro n i c Controller Modes, below). Page 12: Chapter 3: Polar Alignment, Celestial Coordinates, Locating The Celestial Pole, Polar Alignment Procedure To Polar align using the #883 Deluxe Field Tripod (Fig. 13), follow the instructions provided with the tripod. To Polar align using the #880 (ETX-90EC) or #881 Table Tripod (ETX–125EC), use the following procedure. 1. Make sure the viewfinder is aligned with your ETX telescope (see Aligning the Viewfinder, page 8). Dec.at 90° Fig.16: Example of Polar Alignment Using the #880 Table Tripod and ETX-90EC.

(1) Standard tripod leg with latitude scale; (4) Fixed tripod legs; (7) R.A. scale pointer; (8) #1422 low-latitude balance weight. Page 14: Chapter 4: Observing, Objects In Space, The Moon, Planets, Deep-sky Objects 1960’s and early 1970’s. However, no telescope on Earth can see these footprints or any other artifacts. In fact, the smallest lunar features that may be seen with the largest telescope on Earth are about one-half mile across. NOTE:Except during its early or late crescent phases, the Moon can be an exceptionally bright object to view through the telescope. Page 15: Photography With Both Etx Models 1. Use the optional table tripod specific to your model of ETX, or the #883 Deluxe Field Tripod as a platform for the telescope. At effective focal lengths of 1250mm to 1450mm (ETX-90EC) or 1900mm to 2310mm (ETX–125EC), even small external vibrations can easily ruin an otherwise good photo. Page 16: Chapter 5: Optional Accessories ETX telescopes, are available at more than 2000 dealer locations in the U.S. and Canada and through Meade international distributors worldwide.

Once you have identified the accessories you wish to order, contact your local Meade authorized dealer.OPTIONAL ACCESSORIES #1422 Low-Latitude Balance Weight (for ETX-90EC): If the ETX-90EC is to be used with the #880 Table Tripod and polar- aligned at latitudes below 30°, the telescope can become unbalanced, particularly if heavier accessories (e.g., a camera body) are attached to the eyepiece-end of the telescope. #765 Soft Carry Bag: The Meade soft-padded carry bag (Fig. 31) is well suited to travel with the ETX-90EC. Each carry bag includes a shoulder strap and permits ready transport of the complete telescope, including accessories. Page 19: Chapter 6: Maintenance And Servicing, General Maintenance, Storage And Transport, Inspecting The Optics, Troubleshooting Storage and Transport When the telescope is not in use, store it in a cool, dry place. Do not expose the instrument to excessive heat or moisture. It is best to store the telescope in its original box with the vertical and horizontal locks (6 and 10, Fig.

Page 20: Meade Customer ServiceIn the unlikely event that the ETX requires factory servicing or repairs, write or call the Meade Customer Service Department first, before returning the telescope to the factory, giving full particulars as to the nature of the problem, as well as your name, address, and daytime telephone number. Page 21: Telescope Specifications Secondary mirror obstruction (dia.; %) . . 27.9mm (1.1”); 9.6% Telescope mounting ....fork type; double tine Setting circle diameters .... Page 22: Appendix A: Tracking Motor Speed For objects, like the Moon or a comet, that move at slightly different rates, the Electronic Controller arrow keys (1, Fig. 6) are sufficient to move the telescope slightly as the object very slowly moves off-center through the eyepiece field. Page 23: Appendix B: Helpful Charts, Latitude Chart For Major Cities Of The World, Star Locator Appendix B: HELPFUL CHARTS Latitude Chart for Major Cities of the World To aid in the polar alignment procedure (see page 12), latitudes of major cities around the world are listed below.

To determine the latitude of an observing site not listed on the chart, locate the city closest to your site. Page 24: Appendix C: Precise Polar Alignment Setting Circles, Precise Polar Alignment, Setting Circles Although the above procedure is somewhat tedious (since the field of view of the telescope with the SP26mm eyepiece is only about 1°), it is a worthwhile effort if precise polar alignment is desired (e.g., if photography of the Moon or a planet is to be performed). Page 25: Appendix D: Road Map To The Stars Appendix D: ROADMAP TO THE STARS The night sky is filled with wonder and intrigue. You too can enjoy exploring the universe simply by following a few pointers on a roadmap to the stars. First, find the Big Dipper, which is part of the constellation Ursa Major. Page 26: Appendix E: You And The Universe Appendix E: YOU AND THE UNIVERSE APPENDIX The distance from the Earth to the Moon Radius = 239,000 miles The distances between the planets The distance from the Earth to the Sun is 93 million miles or 1 Astronomical Unit (AU) Pluto’s elliptical orbitis eccentric and carriesthe planet inside theorbit ofNeptune at itsclosest approachto theSun.