Products
Questar's telescopes are used in consumer, military, police, security, and industrial applications. Products sold by Questar include 3.5” and 7” aperture Maksutov Cassegrain astronomical/terrestrial telescopes for the consumer market.
Other products included:
- Surveillance versions of their Maksutov Cassegrain models
- Long distance microscopes, an adaptation of their Maksutov Cassegrain telescopes modified to image subjects at close range, used in research and manufacturing process quality control
- Specially built Maksutov Cassegrains for use in test range imaging and radar calibration/boresighting
- The QMax, a portable solar spectrometer built to fit their line of Maksutov Cassegrain telescopes.
While it was produced in very limited numbers, Questar once offered a 12-inch (300 mm)-aperture optical-tube assembly. Some barrels were sold coupled with an equatorial mount based on a Byers drive system. The 12" Questar also found application by NASA for tracking launches optically (see below).
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