mately 35mm of space between the camera and Field Flattener to achieve the proper distance
(20.1 + 35 = 55.1mm). Note that if you do not reach 55mm perfectly, the Field Flattener will still work,
but gradually lose its effectiveness the further or closer from 55mm your camera is positioned.
Your CCD camera must have compatible T-threads on the camera body to attach to the Field Flattener.
Remove the nosepiece (if equipped) and thread the camera body onto the back of the Field Flattener or
T-thread spacer.
Care & Maintenance
Care should be exercised when using all optical and mechanical telescope accessories. Keep your Field
Flattener in a protected environment when you’re not using it, and place the dust cap and threaded
metal cap on the Field Flattener for storage. Avoid touching the lenses and coatings. If the outside of
the lens should become dirty, you may want to clean it. Blow off all loose dirt with a blower bulb. Use
only optical lens tissue and good-quality lens fluid. Wet a folded tissue and gently wipe the surface of
the lens. Immediately use a second piece of lens tissue to gently dry the lens off. Do not rub or apply
pressure, as this may scratch the lens if dust or grit is present.
Specifications
Optics 2-element, fully-multicoated
Clear Aperture 38mm
Focal Length 55mm
Mechanical Profile 51mm
Weight 21g (7.5 oz)
One-Year Limited Warranty
The Orion Field Flattener for Short Refractors is warranted against defects in materials or work-
manship 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 instrument 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, 89 Hangar
Way, Watsonville, CA 95076; (800) 676-1343.
Providing Exceptional Consumer Optical Products Since 1975
OrionTelescopes.com
Customer Support (800) 676-1343
E-mail: support@telescope.com
Corporate Offices (831) 763-7000
89 Hangar Way, Watsonville, CA 95076
© 2011 Orion Telescopes & Binoculars
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