For an observer who needs a well detailed yet simple guidescope, the Sky-Watcher Evoguide 50DX APO definitely fits the need! Well detailed views bring celestial objects to greater light for better guiding for observation. For imagers, mounting the Evoguide 50DX to a guide camera is a walk in the park with the M42 rings and focusing is easy as well with the helical single speed focus ring. While primarily intended for guiding purposes for astrophotographers, it can also be used as the main imaging scope itself when used with a reducer (sold separately) due to its relatively fast focal ratio which is the preferred optical metrics for wide field observation and deep sky objects.

• The optics include ED glass which essentially removes the phenomenon of chromatic aberration and thus ruin color quality and sharpness. 
• Lightweight and simple guidescope for astrophotographers who want to keep their setup to minimal weight yet still have the resolution needed for accurate guiding.
• Included M42 rings for mounting to guide camera.
• Includes helical single speed focus ring for an easy to use focus system.
• Can be used with optional not included reducer for wide field imaging, a major advantage for deep sky and low surface brightness objects.
• Includes a V-style rail.