Baader Planetarium 2" NX4 (C90)/ETX Expanding Ring | 2958500A 8" Thanks to its specially designed

Thanks to its specially designed full aluminum case

6KG Counterweight and counterweight bar A standard 5KG counterweight and a counterweight bar (304 stainless steel) Dovetail saddle Standard 200mm Losmandy & Vixen style dovetail saddle Dimension The diameter of the main body's base is 160mm

The Schmidt-Cassegrain design also eliminates chromatic aberration

Provides a 46° Apparent FOV

The optical system was designed to reduce more than just off-axis star coma

Baader Planetarium 2" NX4 (C90)/ETX Expanding Ring | 2958500A 8" Thanks to its specially designedBaader Planetarium 2" NX4 (C90) ETX Expanding Ring Converts NX4 straight male thread to 2" SC thread (component part of 2958500) Specifications Manufacturer Baader Planetarium SKU (#) 2958500A EAN Code 4047825007216 Weight (kg) 0. 056 Optical length (mm) 2. 5 Usage Changes NexStar 4 outer thread in the standard 2" SC thread of all SC telescopes Inner Diameter Clear Aperture (mm) 28 Outer Diameter 56 Inner Connection (lens sided) Thread, M28. 5, 1. 4"