Questar Corporation is a privately owned business that has been in existence since 1950.  They are the world’s leader in the development and manufacture of high quality Maksutov Catadioptic lens systems.  Their original telescope, the Questar 3.5 was the first in space and other Questar instruments have received awards. 

The Questar 3.5 has long been regarded as the finest personal telescope in the world.  In addition to the telescope’s legendary resolution, flatness of field and contrast, the Standard has integration features that are unavailable with other telescopes.

The Questar Field Ranger is the ultimate spotting scope for situations that require long focal lengths.  No other scope matches the Field Ranger’s resolution and image contrast.

The Questar Birder is a version of the Field Ranger modified for bird watching.  Questar has protected their long-standing reputation for superb optical performance by continuing to manufacture each of their telescopes to the highest standards in the industry.  Every telescope is assembled using hand-figured matched optical components and adjusted mechanically until it has the feel and durability of a fine watch.