The angled-viewing Regal M2 100ED Spotting Scope from Celestron combines a high-transmission optical path with a nitrogen-filled magnesium-alloy housing to deliver reliable imaging performance at low light and in unforgiving weather conditions. At the core of the Regal M2 are fully multi-coated optics, including BAK4 prisms and an extra-low dispersion (ED) glass objective that minimizes chromatic aberration and maximizes light gathering. Multiple layers of Celestron's proprietary XLT coating on each lens preserve brightness and transmit contrast-rich images to the eyepiece.

This version of the Regal M2 spotting scope includes a 22-67x eyepiece that is ideal for intermediate- to long-range glassing. The broad magnification range, comfortable 20mm eye relief, and twist-up rubber eyecup make this zoom eyepiece well suited for long-duration observations. The scope's standard 1.25" eyepiece mount will accept most astronomy eyepieces, which enables a near-infinite number of optical configurations.

Complementing the image quality and weather-sealed construction of the Regal M2, several features enhance the scope's functionality and observer's user experience. An included T-adapter ring permits DSLR camera mounting to the objective assembly, transforming the 100ED into a high-transmission digiscoping platform. The rotating tripod collar has a 1/4"-20 mounting socket and is detented at multiple positions to provide the observer with alternate viewing orientations. A sliding sunshade, sighting aid, and dual-focus mechanism equip the Regal M2 with the functionality needed for a wide range of outdoor glassing applications.