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Cleaning the Diagonal
The mirror of the star diagonal is coated with high-reflectivity
coatings which can be damaged with careless handling. Avoid
touching mirror surfaces with your fingers or any coarse material.
Clean the mirrors only if they get noticeably dirty. Always use
lens cleaning tissue and fluid specifically designed for telescope
optical coatings. Do not use regular tissue or fluids made for eye-
glass or household use.
To properly clean the star diagonal's mirror, the mirror must be
removed from its housing. To do this, first remove the four Phillips
head screws from the bottom of the diagonal. For 2" models, you
will also need to remove the two button head cap screws from
the side of the diagonal (requires a 2mm or 5/64" hex key). The
mirror is gently supported by foam padding and can be removed
by simply sliding it out of the diagonal housing.
Once the mirror is removed from its housing, blow compressed
air over the surface to remove dust particles and debris, then
gently wipe away smudges with telescope optical cleaning fluid
and tissue. Apply some fluid to a tissue and gently wipe the mirror
surface. Use another clean, dry piece of tissue to gently wipe up
any fluid remaining. Repeat if necessary. Use caution; wiping with
too much applied pressure may cause scratches.
Specifications
Enhanced aluminum coating: 97% reflectivity
Dielectric coating: 99% reflectivity
This Orion High-Reflectivity Mirror Star Diagonals is warranted against defects in materials or workman-
ship 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.
Customer Support Help Line (800)‑676‑1343 • Day or Evening
One-Year Limited Warranty
Orion Telescopes & Binoculars
89 Hangar Way, Watsonville, CA 95076
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