Need Help? Live Chat Support      Hello Guest, Login / My Account

Sky-Watcher Skymax 150 150mm f/12 Maksutov-Cassegrain Telescope (OTA Only)
Sky-Watcher Skymax 150 150mm f/12 Maksutov-Cassegrain Telescope (OTA Only)

Sky-Watcher Skymax 150 150mm f/12 Maksutov-Cassegrain Telescope (OTA Only)

. Use Live Chat for questions. or to leave your message for us to reply to within a couple of hours.
. Satisfaction Guarantee: 30 Days no Hassle Return (Terms & Conditions Applies)
. Multiple Payment Options ( All Debit, Credit Cards, EMT, Wire Transfers, Financing)
. Canadian Based Company, 100% Secure Ordering

Your Price: CAD1,189.00
Retail Price:CAD1,255.75

Your Savings:CAD66.75(5%)

Usually ships in 5-7 business days
Part Number:S11530

Product Highlights

  • 150mm Aperture Maksutov-Cassegrain OTA
  • 1800mm Focal Length, f/12 Focal Ratio
  • Limited-Diffraction Optical System
  • Fully Multi-Coated Optics
  • Internal Primary Mirror Focusing System
  • 28mm Long Eye Relief 2" Eyepiece
  • 2" 90° Star Diagonal
  • 8x50 Straight-Viewing Finderscope
  • Vixen-Style Dovetail Plate
  • OTA Only - Mount and Tripod Required

Balancing aperture with manageability and representing one of the widest apertures in the series, the Sky-Watcher 150mm f/12 Maksutov-Cassegrain Telescope is powerful while maintaining the portability of the smaller models. The Maksutov design exchanges the conventional front corrector plate of a Schmidt with a convex meniscus lens, resulting in a smaller secondary mirror that limits obstruction and increases contrast, while eliminating the need for periodic collimation. This modified optical path results in a slower focal ratio and narrower field of view versus a similar Schmidt, but the optical benefits, when coupled with the larger aperture and fully multi-coated optics, make this an ideal scope for making detailed solar, lunar, and planetary observations, while being able to resolve deep-sky objects like stars, clusters, galaxies, and nebulae.

The scope is outfitted with a large 2" visual back and, to get users started, Sky-Watcher includes a 28mm long eye relief eyepiece that produces a moderate 64x magnification and a 90° star diagonal for viewing with the optical tube assembly (OTA) pointed at or near the celestial zenith. The OTA is offered here without a mount or tripod for users who have a reliable support system 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 mounts. This OTA's compact form factor belies its observation power and resolution and is ideally suited as a grab-and-go option for quick observation sessions or heading out to remote locations.

Optical Performance
  • 150mm aperture
  • f/12 focal ratio
  • 1800mm focal length
  • Front convex meniscus lens corrects spherical and chromatic aberrations and comas (off-axis aberrations) across the entire field of view
  • Smaller secondary mirror versus Schmidt-Cassegrains reduces obstructions and increases contrast
  • Fully multi-coated optics maximize light transmission to improve brightness, color rendition, sharpness, and contrast
  • Resolution: 0.77 arcsec; Dawes'
  • Internal primary mirror focus
  • 2"-diameter visual back accepts larger eyepieces and accessories
  • Requires mount and tripod for proper use
  • Vixen-style dovetail plate
  • Weight 14 pounds, including OTA and accessories
Included Accessories
  • Eyepiece:
  • 2" barrel diameter
  • Accepts most 2" astronomical filters
  • 28mm eyepiece yields 64x power
  • Comfortable long eye relief
  • Diagonal:
  • 2" snout and eyepiece holder
  • 90° angle places head in a comfortable viewing position
  • Star configuration corrects image horizontally for terrestrial use
  • Finderscope:
  • Relatively low 8x magnification provides a wide field of view for easier alignment and faster star-hopping navigation
  • Larger 50mm aperture helps resolve dimmer objects that dot finders cannot


Optical Tube Assembly
Optical Design Maksutov Cassegrain
Aperture 150 mm / 5.9"
Focal Length 1800 mm
Focal Ratio f/12
Focuser Internal
Eyepiece Barrel Diameter 1.25", 2"
Diagonal 90° Star
Finderscope Yes
Mounting System Vixen Style
Batteries None
GPS None
Wi-Fi None
Weight 14.0 lb / 6.4 kg
Packaging Info
Package Weight 17.3 lb
Box Dimensions (LxWxH) 24.7 x 10.7 x 9.9"

In the Box
Sky-Watcher 150mm f/12 Maksutov-Cassegrain Telescope (OTA Only)
  • 90° Star Diagonal
  • 28mm Eyepiece
  • 8x50 straight view Finderscope
  • Limited 2-Year Warranty

  • Related Items

    Recently Viewed Items