Tele-vue NP101 Manuel d'utilisateur télécharger pdf

32 Elkay Dr., Chester, New York 10918 (845) 469-4551. televue.com

Tele Vue

Visionary

540mm f/5.4

4-ELEMENT APO REFRACTOR

Thank you for purchasing the Tele Vue-NP101. It has been our pleasure to craft this ﬁne instrument for

you. Though instructions for use are as simple as mounting the scope, removing the lens cover, and

inserting an eyepiece, please take a moment to review the information here.

Thirty-plus years ago Al Nagler took Petzval’s portrait lens concept using widely spaced doublets,

and patented a fast telescope design version for the purpose of testing eyepieces. The 5” f/4 MPT

(Multi-Purpose Telescope) with its fast speed, wide and ﬂat ﬁeld, led to a series of continuous improve-

ments, primarily in color correction. The “Halley Commemorative,” 4” f/5.5 started the parade where

more advanced glasses including special dispersion, ﬂuorite and ﬂuorite substitute glasses brought steady

improvements. The 4” f/5 Genesis employed ﬂuorite in the rear doublet and the SDF version at f/5.4

and subsequent Tele Vue-101 version brought us closer to perfection. Maintaining the f/5.4 speed while

reducing tube length in a totally new design, with new glasses allowed virtually ideal color correction and

improved ﬁeld ﬂatness. The NP101 (Nagler-Petzval) is the ultimate culmination of 30-years of reﬁnement

toward optical perfection. Al’s “spacewalk” dream from his 1960’s NASA simulator days is yours to live.

Bon Voyage!

WARNING: NEVER try to look at the sun or point the telescope toward or near the sun without

professional solar observing equipment rigidly secured in front of the objective lens. When

observing the sun with the proper ﬁlters, use only the Tele Vue “Sol-Searcher” (SSF-1006) for

ﬁnding the Sun. Remove any ﬁnding devices such as Starbeam from the telescope. Instant and

permanent eye damage may result from viewing the sun directly, even during a solar eclipse, or when

viewing through thin clouds, or when the sun is near the horizon.

Standard Features - sliding dew shield, screw-on lens cover, 2” focuser with 10:1 reduction, 2” Everbrite

diagonal, 2” to 1¼” adapter, ring mount and custom hard-shell case.

Mounting - For attaching the Tele Vue-NP101 to any Tele Vue mount, you will receive the two ¼-20 studs,

wing knobs, Allen wrench and complete mount assembly instructions with the mount. Tele Vue makes vari-

ous adapter plates for popular German equatorial mounts. Please consult your dealer.

Finders - We particularly recommend using the Starbeam reﬂex sight (part# SFT-2003), which attaches to

the Ring Mount. The telescope will ﬁt in the case with the Starbeam attached. Movement of the mount ring

may be necessary. The Quick Release Universal Finder Bracket (QFM-1008) holds a traditional 50mm

ﬁnderscope and also attaches to the mount ring channels.

Terrestrial Viewing Considerations - The Tele Vue 55mm Plössl or 41mm Panoptic in a 2” diagonal will

provide the maximum true ﬁeld of 4.9°. This can serve as a ﬁnder, for rich ﬁeld viewing or for terrestrial

use. (Image is upright, but left-right reversed using diagonal mirrors.)

Tele Vue

Operating Guide

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Résumé du contenu

Page 1 - Tele Vue

32 Elkay Dr., Chester, New York 10918 (845) 469-4551. televue.comTele Vue®Visionary540mm f/5.44-ELEMENT APO REFRACTORThank you for purchasing the T

Page 2 - 1.4 Case

However, Tele Vue developed the 1¼” 60° Everbrite Diagonal (part# DPC-6012) speciﬁcally for terrestrial observers who appreciate the highest levels

Page 3

Ring MountBat HandleSliding Dew Shield(retracted over Front Cell)Focuser Tension Knobs (2)10:1 Focus KnobDraw TubeDiagonal2” to 1¼”AdapterTubeAccessor

Page 4

Tele Vue-NP101/NP101isFocal Length (mm)Type Product CodeApparent Field (deg)Field Stop Dia. (mm)Eye Relief (mm)Weight (lb.)Mag.True Field (deg)Exit Pu

Page 5 - Caring for the Tele Vue-NP101

The two accessory bags within the case lid are removable. IMPORTANT: Whenever carrying your telescope in the case, the accessory bags must be in p

Page 6 - Speciﬁcations

Collimation of your Tele Vue-NP101 has been locked at the factory. With reasonable care it will remain aligned. However, rough handling can cause mi

Page 7

1.9 Photo-visual Conﬁgurations

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Tele-vue NP101 Manuel d'utilisateur

Naviguer en ligne ou télécharger Manuel d'utilisateur pour Optique Tele-vue NP101. Tele Vue NP101 User Manual Manuel d'utilisatio

Résumé du contenu

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