Sky Watcher Quantum Refractor 120 ED APO OTA S11140

Sky Watcher Quantum Refractor 120 ED APO OTA S11150

The Sky Watcher Quantum 120mm Refractor is a high end instrument built for the Pro's. Perfect for Imaging the Sky Watcher Quantum Refractor has a ton of features, many of which are listed below.

• 120mm In Aperture, the Skywatcher Quantum is large by refractor standards
• S-FPL53 glass delivers high fidelity images.
• Each lens element is personally inspected to guarantee purity and absence of striations.
• The Skywatcher Quantum Refractor delivers diffraction limited optics that will perform flawlessly to the theoretical limits of their aperture sizes.
• The SkyWatcher Quantum virtually eliminates residual chromatic aberration, otherwise known as false color.
• Great for both visual observation and imaging the SkyWatcher Quantum 120 has an F/ 7.0 Focal Ratio.

Included Accessories with the Sky Watcher Quantum 120:

• Field Flattener - When you are ready for imaging, Quantum includes a field flattening lens that transforms your scope into the Ultimate Imaging Instrument. Using optical grade Schott glass and mutli-coatings on all air-to-glass lens surfaces, the field flattener provides sharps, in-focus stars across a large 43 mm image circle. The field flattener is compatible with optional M48 camera adapter rings.

• Precision Linear Bearing Focuser - Optical focus is achieved by means of a mechanically ultra-smooth, backlash-free, precision linear bearing focuser with giant 3.4" diameter drawtube. This rotatable focuser offers 2-speed fine and micro-fine focusing adjustments with an engraved scale. Includes 2" eyepiece adapter.

• Carbon Fiber Optical Tube - Dent and scratch-resistant carbon fiber optical tube not only provides a stylish protective finish, but also delivers excellent thermal stability and mechanical stiffness.

• Tube Rings and Dovetail Plate - All-metal tube rings and a CGE-style dovetail plate makes Quantum refractors ready to be mounted on any of Celestron's high quality imaging platforms, like the CGEM Deluxe or CGE Pro equatorial mounts.

• Retractable Carbon Fiber Lens Shade - For compact and safe storage.

• Four Internal Baffles - Maximizes contrast and minimizes stray light and reflections.

• Aluminum Case - Offers protection for your instrument.

Includes full accessory assortment:

• 28mm eyepiece w/ 2" barrel diameter, fully multi-coated optics

• 2" dielectric mirror star diagonal w/ 1.25" adapter

• 9x50 correct-image right-angle finderscope with machined dovetail bracket

• Aluminum dust cover

SkyWatcher Quantum 120 Specifications:

• Optical Design - APO Triplet Refractor
• Aperture - 120mm
• Focal Length - 840mm
• Focal Ratio - 7
• Eyepiece - 28mm
• Optical Coatings - Fully Multi Coated
• Finder Scope - 9x50 Erect Image Right Angle Finder
• Star Diagonal - 2" with Dielectric Coatings
• Limiting Stellar Magnitude - 12.9
• Resolution - 1.16 Archsec
• Tube Rings Included
• CGE Dovetail Plate Included
• Optical Tube Length - 30 Inches
• Weight - 23 lbs.