iOptron MAK 150mm f/12 Rumak Maksutov-Cassegrain Telescope (OTA Only)

iOptron MAK 150mm f/12 Rumak Maksutov-Cassegrain Telescope (OTA Only)

iOptron MAK 150mm f/12 Rumak Maksutov-Cassegrain Telescope (OTA Only)

B&H # IO6101 MFR # 6101

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Product Highlights

  • 150mm Rumak Maksutov-Cassegrain OTA
  • 1800mm Focal Length, f/12 Focal Ratio
  • Aluminum and Quartz-Overcoated Mirrors
  • Multi-Coated and Fully Baffled Optics
  • Dual-Speed Internal Focusing Mechanism
  • 2" Eyepiece Holder with 1.25" Adapter
  • Threaded Accessory Holder with T-Mount
  • 8x50 Finderscope with Mounting Bracket
  • Vixen-Style Dovetail Plate
  • OTA Only - Mount and Tripod Required
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iOptron MAK overview

  • 1Description

A variation on the more common catadioptric optical path, the iOptron MAK 150mm f/12 Rumak Maksutov-Cassegrain Telescope employs the same convex meniscus lens corrector plate that defines the Maksutov design and adds a secondary mirror on the inside of the plate. This convex Rumak mirror configuration requires a smaller secondary mirror that limits obstruction and corrects spherical and chromatic aberrations more precisely. The combination of front lens, aluminum and quartz-overcoated primary and secondary mirrors, and fully baffled and coated optics helps to eliminate both off-axis comas and 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 Cassegrain optical path results in a slower focal ratio and narrower field of view versus a similar Schmidt, the optical benefits make 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 and accessories can be used with this scope. For other gear, iOptron includes both a screw-on accessory holder that accepts Schmidt-Cassegrain accessories and a photo T-ring adapter. The T-ring adapter is used in conjunction with a user-supplied camera-specific T-mount for astrophotography with a DSLR. The optical tube assembly (OTA) is offered here without a mount or tripod for users who have a reliable platform or want to use it as part of a dual-OTA setup 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.

  • 150mm (5") aperture
  • f/12 focal ratio
  • Long 1800mm focal length
  • Rumak Maksutov-Cassegrain catadioptric optical path has a front convex meniscus lens that corrects spherical and chromatic aberrations and comas (off-axis aberrations) across the entire field of view
  • The Rumak variety employs a specialized secondary mirror on the corrector plate that acts as a field flattener and further corrects aberrations better than the conventional Maksutov configuration
  • BK7 optical glass primary mirror
  • Aluminum and quartz-overcoated primary and secondary mirrors
  • Fully multi-coated optics improve light transmission, color fidelity, and overall image contrast
  • Internal baffling absorbs internal light diffraction to improve overall image quality and contrast
  • Resolution: 0.77 arcsec
  • Internal dual-speed focusing mechanism adjusts primary mirror with fast (coarse) and fine precision focusing
  • OTA only: For users who have a reliable support system
  • Mount and tripod required
  • Vixen-style dovetail plate fits on compatible saddles
  • OTA weight: 13.4 pounds
Included Accessories
  • Visual back:
  • Threaded holder allows for mounting Schmidt-Cassegrain accessories such as imaging systems
  • T-ring adapter for astrophotography; requires camera-specific T-mount
  • Eyepiece holder:
  • 2" holder accepts larger eyepieces and accessories
  • 1.25" eyepiece reducer adapter allows the use of smaller eyepieces in the larger holder
  • Finderscope:
  • 8x magnification
  • Large 50mm aperture helps to find dimmer deep-sky objects
  • Center aiming circle helps center objects in field of view
  • Includes mounting bracket
  • Other accessories:
  • Removable aluminum dew shield
  • Front lens cover with off-axis light-limiting cap for viewing the Moon or Sun (with appropriate solar filter installed)
UPC: 813578010438
In the Box
iOptron MAK 150mm f/12 Rumak Maksutov-Cassegrain Telescope (OTA Only)
  • Threaded Accessory Holder
  • 2" Eyepiece Holder
  • 2-to-1.25" Reducer Adapter
  • 8x50 Finderscope with Bracket
  • Aluminum Dew Shield
  • Front Lens Cover
  • T-Ring Adapter
  • Limited 2-Year Warranty
  • Table of Contents
    • 1Description

    iOptron MAK specs

    Optical Tube Assembly
    Optical Design Maksutov Cassegrain
    Aperture 150 mm / 5.9"
    Focal Length 1800 mm
    Focal Ratio f/12
    Eyepiece Barrel Diameter 1.25", 2"
    Diagonal No
    Finderscope Yes
    Mounting System Vixen Style
    Optical Tube Dimensions Length: 21.8" / 55.2 cm without Dew Shield 
    Length: 27.1" / 68.9 cm with Dew Shield 
    Weight 13.4 lb / 6.0 kg
    Packaging Info
    Package Weight 22.5 lb
    Box Dimensions (LxWxH) 32.0 x 14.0 x 11.0"

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