The Orion Apex 90mm Maksutov Cassegrain Telescope has light-folding Maksutov-Cassegrain design. It permits large-diameter optics, 90mm, to be housed in an unusually compact, wonderfully portable tube. As a spotting scope, the Apex 90 gathers more light than typical field scopes, serving up brighter, more highly resolved images even in the dimmest of lighting conditions.
Multi-coatings applied to the curved front lens guarantee the highest possible light transmission. For astronomy, the Apex telescope exhibits all the performance of classic long-tube 90mm refractors and easily outperforms smaller refractors on views of the planets and Moon as well as on faint nebulas and star clusters. Its long focal length allows high-power study of Jupiter's cloud belts and Red Spot and Saturn's rings and provides long reach for capturing distant terrestrial targets. The Apex telescopes accept standard 1.25" telescope eyepieces for nearly unlimited magnification options.
The Apex 90 comes with a multi-coated 25mm Sirius Plossl eyepiece (1.25") and a 45° diagonal that provides a correctly-oriented field of view. As does the correct-image finder scope (6x20 on Apex 90), which makes locating objects a cinch. The finder scope is held in a quick-release dovetail bracket for easy assembly and disassembly. It also includes a rugged, fully padded carrying case to protect your instrument. It's got hand and shoulder straps and ample pockets for accessories. The scope easily pops on and off a telescope mount or camera tripod with the built-in 1/4"-20 adapter plate. And it doubles as a high-power telephoto lens for photography, too by mounting a 35mm camera body (with optional T-ring) to the T-threads on the eyepiece holder.