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This MAK 150mm f/12 Rumak Maksutov-Cassegrain Telescope from iOptron exchanges the front corrector plate found in the more common Schmidt-Cass version with a convex meniscus lens which not only eliminates the need for periodic collimation, but the nature of the lens requires a smaller secondary mirror that limits obstruction and increases contrast. The combination of front lens, aluminum and quartz-overcoated primary and secondary mirrors, and fully baffled and coated optics helps to correct both off-axis, spherical and chromatic aberrations to produce bright and clear high-contrast images with true color rendition, free from comas and distortion across the entire field of view. While using this configuration of the Mak-Cass optical path results in a slower focal ratio and narrower field of view versus a similar Schmidt-Cass, the optical benefits makes this an ideal scope for planetary and double-star observation, and astrophotography.
The scope is outfitted with a dual-speed internal focusing system that allows for fast and precise focusing. A 2" eyepiece holder is included with a 1.25" adapter so an extensive amount of eyepieces can be used with this scope. For other gear, iOptron includes a screw-on accessory holder that accepts Schmidt-Cassegrain accessories, and a photo T-ring adapter that will. The T-ring adapter is used with a user-supplied camera-specific T-mount for astrophotography with a DSLR. The OTA is offered here without a mount or tripod for users that have a platform, or want to use it as part of a dual-OTA set up for star-parties or observation/imaging rigs. It is outfitted with a Vixen-style dovetail plate for use with compatible equatorial or alt-az mounts. This OTA's compact form-factor belies its power and resolution as a versatile telescope for near and deep-space observation and imaging.