User Manual

Your star diagonal employs a first-surface mirror. Like all first-surface mirrors, it should be cleaned only
when absolutely necessary. First blow loose dust away with a squeeze bulb. CAUTION: Do not clean
mirror with water or water based cleaners such as Windex or any other commercial lens cleaners; this is
not a lens. All contain too much water and will leave a residue. Moisten a “Q-Tip” with pure acetone or
methanol or Isopropyl alcohol, reagent grade. Clean gently using only the weight of the cotton swab. Use
very light pressure and never rub. Slight residual stains or dust spots will have no visible effects in observing.
The tube and other parts are powder-coated for durability and can be polished with any non-abrasive
car wax. Black anodized surfaces can be cleaned with Windex.
If you have any questions about the care, operation or performance of your
Tele Vue-
76, please call
Tele Vue at (845) 469-4551 from 9:30 am to 5:00 pm EST.
1.6 Warranty
The
Tele Vue-
76 is warranted to be free of manufacturing or workmanship defects for 5 (five) years
from the date of purchase, to the original owner. Please return the warranty card for easy identification. If
your
Tele Vue-
76 requires warranty service, please call Tele Vue to discuss the defect, upon which you
will receive a return authorization. NO RETURNS ARE ACCEPTED WITHOUT PRIOR AUTHORIZATION.
The warranty does NOT include: collimation, defects caused by mis-handling, defects of subjec-
tive nature, coverage for any telescope purchased through an unauthorized Tele Vue dealer, or purchased
outside the home country where Tele Vue has representation.
Warranty work will be performed at Tele Vue’s discretion and may only be performed by Tele Vue
Optics. The telescope must be shipped in its case with proper inner and outer packaging. Return shipping
and insurance charges are the purchaser’s responsibility.
1.7 Specifications
Type 2-element APO refractor, Fully Multi-Coated
Clear Aperture 3 inches (76mm)
Aperture Gain 118, compared to a 7mm exit pupil
Focal Length 480mm
Focal Ratio f/6.3
Resolution (visual) 1.5 arc-sec. (Dawes Limit for a 3-inch aperture)
Resolution (photographic) 222 line pairs per mm
Magnification 9x to 200x using Tele Vue eyepieces
Field, Visual 5.5
o
at 9x
Focuser 2-inch, rack and pinion type
Diagonal 2-inch Everbite 99% broadband mirror type, with 1¼” adapter
Finder Optional Starbeam or 55mm Plössl for 9x, 5.5
o
field
Mounting Adjustable ring mount with ¼-20 tapped holes for
standard photographic tripods or optional Tele Vue mountings
Weight 5.1 lbs. (tube assembly) 9.6 lbs. in case, 12 lbs. shipping
Length 14.5-inches (O.T.A. only)
Accessories custom fitted soft case, screw-on lens cover, sliding dew (glare) shield, ring
mount, 2” diagonal, 2”-1¼” adapter, Plössl eyepiece, Balance Adapter Plate
(APB-1008)
Tube Powder-coated aluminum
Specifications subject to change without notice.