Orion 9374 Using the Zoom Eyepiece, Photography, Retractable Lens Shade, Care and Maintenance

Using the Zoom Eyepiece

The Terra spotting scope provides a continuous zoom from 18x to 36x. The magnification is adjusted to the desired level by rotating the rubber grip on the zoom eyepiece. The red dot indicator and magnification scale show the magnification set- ting. Changing the magnification may also require a slight refocusing of the spotting scope to achieve the sharpest image.

For general use, it’s a good idea to start viewing at the lowest magnification (18x) until you’ve acquired your viewing target. Then you can zoom in to a higher magnification to see more detail. Note that as magnification increases, the images will not be as bright as they are at lower powers.

Photography

The Terra spotting scope comes with a 35mm camera adapter. This adapter, along with an optional, brand-specific T- ring and 35mm SLR camera, can be used to take pictures through your spotting scope. To properly use the spotting scope and camera adapter, you must remove the lens from the camera and thread the T-ring in place of the lens. Thread the camera adapter onto the body of the spotting scope straight over the zoom eyepiece. Then thread the camera and T-ring onto the camera adapter. When finished, the camera/spotting scope assembly should resemble Figure 2.

Figure 2. The Terra spotting scope with attached camera adapter and 35mm SLR camera

Retractable Lens Shade

Your spotting scope features a sliding retractable lens shade. Normally the lens shade is kept retracted, but in circum- stances where glare is a problem the lens shade can be extended. This is useful for keeping unwanted light from reaching the objective lens and washing out the image.

Care and Maintenance

Although the Terra spotting scope is durable, it should not be exposed to the elements for extended periods. Keep the Terra in its case and indoors when not in use. Both the spotting scope and the mini-tripod can be stored in the provided carry case. Make certain that the mini-tripod goes in the bottom compartment of the carry case and the spotting scope goes in the top compartment.

Cleaning the Lenses

The lens surfaces of the Terra are coated with anti-reflection coatings, which can be damaged with careless handling. Avoid touching lens surfaces with your fingers or any coarse material. Clean the lenses a few times a year, or more fre- quently if they get noticeably dirty. The dust that builds up on them promotes mold growth, which etches the glass and destroys the coatings. Always use lens cleaning tissue and fluid designed specifically for telescope optical coatings. Do not use regular tissue or fluids made for eyeglasses or house- hold use. Do not disassemble the spotting scope to clean it.

To clean the lenses, first blow air on the lens with a blower bulb or compressed air to remove any large particles. Then brush the lens with a soft lens brush and blow air again to remove any dislodged particles. Put two drops of lens clean- ing fluid on a sheet of lens tissue (never directly on the lens). Wipe the lens gently in a circular motion, taking care to avoid undue pressure or rubbing. Quickly remove the excess fluid by wiping with a clean, dry lens tissue. On the objective lens, clean only a small area at a time, using a fresh lens tissue on each area.

Specifications

Objective lens diameter: 60mm

Coatings: Fully coated

Magnification range: 18x to 36x continuous zoom

Field of view: 2.3°(at 18x) to 1.6°(at 36x)

Close focus: 33 ft.

Tripod adaptable: Yes, accepts 1/4"-20 mounting studs

Weight: 1 lb. 6 oz.

Length: 13.5"

Lens shade: Retractable

One-Year Limited Warranty

This Terra spotting scope 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. If the product is not registered, proof of purchase (such as a copy of the original invoice) is required.

This warranty does not apply if, in Orion’s judgment, the instru- ment has been abused, mishandled, or modified, nor does it apply to normal wear and tear. This warranty gives you specific legal rights, and you may also have other rights, which vary from state to state. For further warranty service information, contact: Customer Service Department, Orion Telescopes & Binoculars, P. O. Box 1815, Santa Cruz, CA 95061; (800) 676-1343.

Orion Telescopes & Binoculars

Post Office Box 1815, Santa Cruz, CA 95061

Customer Support Help Line (800)676-1343 • Day or Evening

2