instruction Manual Orion GoScope 70 ® ™ #9794 Portable Altazimuth Refractor Telescope EZ Finder II reflex sight Objective lens Eyepiece Diagonal Focus knob Mounting block Azimuth lock knob Elevator shaft lock knob Handle Elevator shaft adjustment crank Leg clamp Figure 1. The GoScope 70. Customer Support (800)‑676-1343 E-mail: support@telescope.com Corporate Offices (831)‑763-7000 Providing Exceptional Consumer Optical Products Since 1975 89 Hangar Way, Watsonville, CA 95076 IN 255 Rev.
Congratulations on your purchase of an Orion telescope. Your new GoScope 70 is the most portable telescope system ever developed by Orion. Since it fits completely in its included backpack case, you can take the GoScope on camping trips, day hikes, the beach, sporting events, vacations, and anywhere else you want to bring it. Great for daytime spotting or nighttime stargazing, the GoScope offers the entire family new worlds of fun.
Knurled ring Altitude adjustment knob Azimuth adjustment knob Power knob Battery cover Figure 3. The knurled ring of the diagonal connects to the threads on the rear of the GoScope. To change the viewing angle, loosen the knurled ring, rotate the diagonal, then retighten the ring. Figure 4. The EZ Finder II reflex sight. Altitude Azimuth Third axis lock knob Figure 5. The GoScope tripod moves about two axes of motion: altitude (up-and-down) and azimuth (left-to-right). Figure 6.
Focusing the Telescope white dots on the EZ Finder II’s body and power knob are lined up, the EZ Finder II is turned off. With the 20mm eyepiece inserted into the diagonal, move the telescope so the front end is pointing in the general direction of an object at least 1/4-mile away. Now with your fingers, slowly rotate the focus knob until the object comes into sharp focus.
For example, the GoScope has a focal length of 350mm, which when used with the supplied 20mm eyepiece yields: 350mm 20mm = 17.5x The magnification provided by the 10mm eyepiece is: 350mm 10mm = 35x The maximum attainable magnification for a telescope is directly related to how much light it can gather. The larger the aperture, the more magnification is possible. In general a figure of 2x per millimeter of aperture is the maximum attainable for most telescopes.
To see what you’re doing in the darkness, use a red-filtered flashlight rather than a white light. Red light does not spoil your eyes’ dark adaptation like white light does. A flashlight with a red LED light is ideal, or you can cover the front of a regular incandescent flashlight with red cellophane or paper. Be aware, that nearby porch and streetlights and car headlights will ruin your night vision too.
Care and Maintenance If you give your telescope reasonable care, it will last a lifetime. Store it in a clean, dry, dust-free place, safe from rapid changes in temperature and humidity. Do not store the telescope outdoors, although storage in a garage or shed is OK. Keep the dust caps and covers on when not in use.
One-Year Limited Warranty This Orion GoScope 70 is warranted against defects in materials or workmanship for a period of one year from the date of purchase. This warranty is for the benefit of the original retail purchaser only. During this warranty period Orion Telescopes & Binoculars will repair or replace, at Orion’s option, any warranted instrument that proves to be defective, provided it is returned postage paid to: Orion Warranty Repair, 89 Hangar Way, Watsonville, CA 95076.
