Tele-vue 102 Manuel d'utilisateur télécharger pdf

Operating Guide

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

Te l e Vue

Visionary

880mm f/8.6

2-ELEMENT APO REFRACTOR

Thank you for purchasing the Tele Vue-102. This 4” aperture telescope has an 880mm focal length f/8.6

APO doublet diffraction-limited objective.

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 other 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 of the optical tube assembly (O.T.A.) include: sliding dew shield, screw-on cover, 2”

focuser, and custom hard-shell case. The Complete Package also includes a 2” Everbrite diagonal, 2” to

1¼” adapter, Ring Mount, and Plössl eyepiece.

MountingMounting

Mounting - The Tele Vue Ring Mount permits mounting to the Tele Vue Gibraltar, heavy duty camera tripods

or equatorial mounts using Tele Vue adapters (consult your Tele Vue dealer). You will receive the two ¼-20

studs, wing knobs, Allen wrench and complete mount assembly instructions with the mount.

FindersFinders

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

the 3

field of the telescope and attaches directly to the Ring Mount. The case has a cutout for the

Starbeam. The Quick Release Universal Finder Bracket (QFM-1008) holds a traditional 50mm finderscope

and also attaches to the mount ring channels.

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iewing Considerationsiewing Considerations

iewing Considerations - The Tele Vue 55mm Plössl in a 2” diagonal will provide 16x with a

3.0° field. This can serve as a finder, for rich field viewing or for terrestrial use. (Image is upright, but left-

right reversed using diagonal mirrors.) Also for 2” diagonals only, we highly recommend the 22mm

Nagler Type 4, which will provide 40x with over a 2.0° field.

Tele Vue developed the 1¼” 60° Everbrite Diagonal (part# DPC-6012) specifically for

terrestrial observers who appreciate the highest levels of image performance. The 60° angle is far more

comfortable for terrestrial observing than the standard 90°, and the 99% reflective Everbrite dielectric

coating gives the truest color rendition of any mirror or prism, and is sharpest at the highest powers.

For correct left-right viewing, use the Tele Vue 45° erector (part# AMI-0011). Barlows,

Powermates and Bino Vue are not recommended with the 45° erecting prism. For 1¼” diagonals and

prisms, the 32mm Plössl, or 24mm Panoptic offers the maximum field, 1.8° at 27.5x and 36.7x respec-

tively.

Getting Acquainted with the Tele Vue-102(see photos on page 3.)

Note: Complete Packages include the O.T.A. and all other items described below. O.T.A. purchasers must

supply eyepieces, eyepiece adapter, diagonal, and mounting device in order for the telescope to function.

1.1 Optical tube assembly

The OTA consists of the objective cell, tube and focuser. The front cell houses the carefully aligned

objective. Never attempt to loosen the 3 alignment screws in the front lens cell. The tube is aluminum and

powder coated, requiring no special care. The rack and pinion focuser is driven by high leverage knobs.

Te l e Vue

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Résumé du contenu

Page 1 - -102-102

Operating Guide32 Elkay Dr., Chester, New York 10918 (845) 469 - 4551. televue.comTe l e Vue®Visionary880mm f/8.62-ELEMENT APO REFRACTORThank you

Page 2 - Afocal

The two tension screws on the top of the focuser body can be adjusted to add resistance when usingheavy eyepieces. These tension screws tighten again

Page 3 - Optical Tube Assembly

Ring MountBat HandleAccessoryChannelLock Screws2” to 1¼”AdapterEyepieceFocuser TensionKnobsFocuser KnobDraw TubeDiagonalComplete PackageSliding Dew Sh

Page 4

Tele Vue recommends choosing low and medium power eyepieces in ratios of ﬁeld stop diameters. For example, factors of 1.4 or 2.0. When choosing higher

Page 5

Collimation of your Tele Vue-102 has been locked at the factory. With reasonable care it will remainaligned. However, rough handling can cause misal

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Tele-vue 102 Manuel d'utilisateur

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