Your Orion 90mm f/10.1 Refractor is a fine-quality instrument designed for both daytime terrestrial viewing and nighttime stargazing. This versatile scope will provide many hours of enjoyment for the whole family. These instructions will help you set up and properly use and care for your telescope. Please read them over thoroughly before getting started.
Please keep the original shipping box. In the unlikely event rings (Figure 2c). Tightening the screws requires a 10mm you should need to ship the telescope back to Orion for war- crescent wrench or an adjustable crescent wrench. Place ranty repair service, you should use the original packaging.
Page 4
First loosen the lock ring located behind the objective lens cell on the body of the Note: If you are using an Orion EQ-2 equatorial mount, the finder scope (see Figure 2a). Back the lock ring off by a few dovetail mounting plate is not needed for attaching the tele- turns, for now.
Page 5
D. Stars you won’t have much luck locating the Orion Nebula. A Stars will appear like twinkling points of light in the tele- simple planisphere, or star wheel, can be a valuable tool for learning the constellations and seeing which ones are vis- scope.
1.25” barrel diameter, threaded telescope’s objective lens as well as the lenses of the eye- for Orion filters pieces and finder scope. Never use regular glass cleaner or cleaning fluid designed for eyeglasses. Before cleaning with Diagonal: 45°...
Warranty The Orion 90mm f/10.1 Refractor 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 post-...