#Celestron omni xlt 102mm refractor telescope software#

Sky Level 1 software with 10,000 object data base Pre-assembled stainless steel tripod featuring 1.75' diameter legs,ġ.25' prism star diagonal, 1.25' multi-coated 25mm Plossl ocular (36x), German equatorial mount system with setting circles and slow motionīearings in both axis of the mount for smooth operation XLT coatings provide maximum light transmissionĭiameter focuser with reducing adaptor for 1.25' diameter oculars Lens is hand selected and made from the finest optical glass Telescope with 4' diameter objective lens in fully adjustable cell, diffraction limited optics and seamless aluminum main tube Illustration courtesy of Celestron International. Here are the features of the Celestron Omni XLT 102: The heavier telescopes also put more strain on the CG-4 mount that is supplied with all Celestron Omni XLT telescopes. The XLT 102's optical tube weighs 9.5 pounds, while the XLT 120 weighs 12.5 pounds and the XLT 150R weighs 16 pounds.

#Celestron omni xlt 102mm refractor telescope portable#

Its advantage, in addition to a lower price point, is that a 4' aperture, f/9.8 refractor is a comfortably portable telescope and increasing the diameter of the objective lens quickly makes a refractor ungainly.

$celestron omni xlt 102mm refractor telescope$

This 102mm (4') telescope is the entry level refractor in Celestron's Omni XLT line, although its quality is identical to its larger aperture 120mm (4.75') and 150mm (6') models. The CG-4 mount wears a matching white finish, as does the tripod's head and leg locks. The front cell, focuser casting and mounting rings are painted white. The XLT 102 comes with an attractive 'gunmetal blue pearl' (my color description) main tube, the same as the rest of the Omni line. This excellent German equitorial mount, by itself, makes the Omni XLT 102 package worth its online discount price, so you can hardly go wrong. There are also some other changes, such as the way the objective doublet is mounted and the use of a rack and pinion focuser instead of a Crayford, but the supplied CG-4 mount remains the same.

$celestron omni xlt 102mm refractor telescope$

Substituting a conventional crown glass / flint glass doublet for the extra-low dispersion glass doublet of the 102ED reduces the discount retail price of the telescope by about 50%. This is the standard (achromatic) Celestron Omni XLT 102 telescope, produced for Celestron by Synta Optical, as opposed to the Omni XLT 102ED previously reviewed by Astronomy and Photography Online. By Chuck Hawks and the Astronomy and Photography Online Staff

$celestron omni xlt 102mm refractor telescope$