Tele Vue NP101 - Manual (Page 6)

Collimation of your Tele Vue-NP101 has been locked at the factory. With reasonable care it will
remain aligned. However, rough handling can cause misalignment. WARNING: The button head screws
in the front lens cell are filled with epoxy. Loosening these screws will cause misalignment. If necessary,
contact Tele Vue for re-collimation.
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 stains. Moisten a “Q-Tip” with pure acetone,
methanol or Isopropyl alcohol, reagent grade. Clean gently using only the weight of the cotton swab.
Use light pressure and never rub. Slight residual stains or dust have no visible effects in observing.
The tube is powder-coated for durability and can be waxed with any nonabrasive 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-NP101, please call us at (845) 469-4551 from 9:30 am to 5:00 pm EST.
3.1 Warranty
The Tele Vue-NP101 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 as validation of your owner-
ship and for easy identification. If your Tele Vue-NP101 requires warranty service, please call Tele Vue to
discuss the problem, upon which you will receive a return authorization. NO RETURNS ARE ACCEPTED
WITHOUT PRIOR AUTHORIZATION.
The warranty does NOT include: collimation, defects caused by mishandling, defects of subjective
nature, coverage for any telescope purchased through an unauthorized Tele Vue dealer.
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. All shipping
and insurance charges are the purchaser’s responsibility.
Specifications
(subject to change without notice.)
Type 4-element, flat field, APO refractor, Fully Multi-Coated
Clear Aperture 4 inches (101.6mm)
Aperture Gain 212, compared to a 7mm exit pupil
Focal Length 540mm
Focal Ratio f/5.4
Resolution (visual) 1.1 arc-sec. (Dawes Limit for a 4 inch aperture)
Resolution (photographic) 267 line pairs per mm
Magnification 10x to 270x using Tele Vue eyepieces
Field, Visual 4.9 o maximum
Focuser 2-inch, rack and pinion type
Diagonal 2-inch 99% reflective dielectric coating, with 1¼” adapter
Finder Optional Starbeam or 55mm Plössl or 41mm Panoptic for 10x, 4.9 o field
Mounting Adjustable ring mount with ¼-20 tapped holes for photographic tripods or optional
Tele Vue mounts. Optional mounting adapter plates available other mount types.
Weight 10 lbs. (tube assembly) 19 lbs. in case, 28 lbs. shipping
Length 26-inches (O.T.A. only)
Accessories included as standard: custom fitted case, screw-on lens cover, sliding dew (glare)
shield, ring mount, 2” diagonal, 2”-1¼” adapter
Tube Powder-coated aluminum