User manual ORION TELESCOPES & BINOCULARS ARISTOCRAT60MM

[. . . ] INSTRUCTION MANUAL Orion Aristocrat 60mm TM ® #9800 Brass Altazimuth Refractor Telescope Customer Support (800) 676-1343 E-mail: support@telescope. com Corporate Offices (831) 763-7000 Providing Exceptional Consumer Optical Products Since 1975 P. O. Box 1815, Santa Cruz, CA 95061 IN 198 Rev. B 4/04 Optical tube Finder scope Altitude tension discs (2) Finder scope brackets Altitude lock lever (opposite side) Eyepiece Azimuth lock knob Correct image diagonal Focus wheel Tripod leg Leg chain plate Tripod leg lock Tripod leg lock knob Leg chain Figure 1. Aristocrat 60mm Brass Refractor 2 ® Congratulations on your purchase of an Orion Aristocrat 60mm. Your Aristocrat 60mm was hand crafted out of brass and African mahogany. [. . . ] Refocus the finder scope on a distant object by threading the objective lens cell in or out on the finder scope body. Once the image appears sharp, lock the ring behind the objective lens cell. The finder scope's focus should not need to be adjusted again. Azimuth Figure 5. The Aristocrat has two axes of motion: Altitude (up/down) and Azimuth (left/right). Focusing the Telescope With the 25mm eyepiece securely inserted into the correctimage diagonal, aim the optical tube so the front (open) end is pointing in the general direction of an object at least 1/4 mile away. With your fingers, slowly rotate the focus wheel until the object comes into sharp focus. Go a little bit beyond sharp focus until the image starts to blur again, then reverse the rotation of the knob, just to make sure you've hit the exact focus point. Aligning the Finder Scope The finder scope is used to aid in aiming the telescope. It is a small, lower-powered telescope that sits on top of the main telescope. Without it, it would be very difficult to aim your Aristocrat 60mm. The finder scope (Figure 6) must be aligned accurately with the telescope for proper use. To align it, first aim the main telescope in the general direction of an object at least 1/4 mile away­the top of a telephone pole, tree, etc. Position that object in the center of the telescope's eyepiece. Finder scope bracket Focus lock ring Alignment thumbscrews (6) Objective lens Figure 6. The 6x30 correct-image finder scope. 5 5 ® Eyepieces and Magnification Your Aristocrat 60mm comes with a 25mm focal length Plössl eyepiece that provides 36x magnification. The Aristocrat can accept any 1. 25" eyepiece (the most common eyepiece barrell diameter). Orion also makes several brass eyepieces that will provide different magnifications for your Aristocrat 60mm. To calculate magnification, or power, of a telescope-eyepiece combination, simply divide the focal length of the telescope by the focal length of the eyepiece: Telescope Focal Length (mm) = Magnification Eyepiece Focal Length (mm) For example, the Aristocrat 60mm, which has a focal length of 900mm, used in combination with the 25mm eyepiece, yields a magnification of 900mm = 36x 25mm Whatever you choose to view, always start by inserting your lowest power (longest focal length) eyepiece to locate and center the object. Low magnification yields a wide field of view, which shows a much larger area in the eyepiece. This makes finding and centering an object much easier. Trying to find and center objects with higher power (narrow field of view) is like trying to find a needle in a haystack! eras and have "false color" added. Our eyes are not sensitive enough to see color in deep-sky objects except in a few of the brightest ones. As you view objects in the night sky, you will notice that they slowly move out of the telescope's field of view. This is due to the rotation of the earth. To keep an object in the telescope's field of view (to "track" it), you will need to make small adjustments to the altitude and azimuth position of the telescope. [. . . ] The coating will also cause moisture that comes in contact with the brass to "bead" on the surface. Moisture on the brass parts should be wiped up immediately with a soft cloth. Cleaning Lenses Any quality optical lens cleaning tissue and optical lens cleaning fluid specifically designed for multi-coated optics can be used to clean the Aristocrat 60mm's objective lens or the exposed lenses of your eyepieces and finder scope. Never use regular glass cleaner or cleaning fluid designed for eyeglasses Before cleaning with fluid and tissue, blow any loose particles off the lens with a blower bulb or compressed air. [. . . ]