102mm Maksutov-Cassegrain Optical Tube 1300mm Focal Length f/12.7 Focal Ratio 94% Reflectivity RAQ™ Mirror Coatings Weighs Only 4.6 lbs Description FAQ Specifications In the Box Downloads Warranty Sky-Watcher Skymax 102 Maksutov-Cassegrain The Sky-Watcher Skymax 102 delivers high-contrast planetary and lunar views using its 102mm aperture and long 1300mm focal length. Its f/12.7 focal ratio is optimized for high magnification, resolving details down to the 1.14 arc-second Dawes limit. The entire optical tube weighs just 4.6 lbs and measures 12.25 inches long, making it an exceptionally portable instrument for detailed solar system observation. Planetary Detail from a 1300mm Focal Length The Maksutov-Cassegrain design packs a 1300mm focal length into a compact optical tube, providing the high power necessary to resolve fine details on planets. This long focal length, combined with the included 10mm eyepiece, yields 130x magnification straight out of the box, ideal for studying Jupiter's cloud bands, Saturn's rings, and the cratered surface of the Moon. High-Contrast Optics with 94% Reflectivity The Skymax 102 uses primary and secondary mirrors made from borosilicate glass, coated with Sky-Watcher's Radiant™ Aluminum Quartz™ (RAQ™) coatings for 94% reflectivity. The meniscus corrector lens is fully multi-coated to maximize light transmission and reduce chromatic aberration. This optical system features a small secondary obstruction of only 30% by diameter, which protects image contrast compared to other catadioptric designs, rendering deep black skies around bright targets. Minimal Light Scatter: The small central obstruction ensures that more light from the primary mirror contributes to the final image, enhancing the contrast between subtle planetary features. Sharp to the Edge: The Maksutov design provides a well-corrected field of view, keeping stars sharp and planetary limbs clearly defined without significant distortion. Grab-and-Go Setup at Only 4.6 lbs Weighing only 4.6 lbs and fitting into the included soft case, the Skymax 102 is an ideal travel telescope or a convenient option for quick backyard sessions. It mounts easily to virtually any light-duty photo tripod or astronomical mount via its integrated V-style dovetail rail. This portability makes it a practical choice for observers who need a powerful telescope without the bulk of a large refractor or Newtonian. Complete Observing Kit with 2 Eyepieces The Skymax 102 arrives ready for observation with a full set of essential accessories. You get two wide-angle 1.25" eyepieces, a 25mm for wide-field locating (52x) and a 10mm for high-power views (130x). Also included are a red dot finder for easy aiming and a 1.25" star diagonal for comfortable viewing angles. What can I see with the Sky-Watcher Skymax 102? The Sky-Watcher Skymax 102 excels at high-magnification views of solar system objects. You can expect to see detailed craters and mountains on the Moon, the phases of Venus, the polar ice caps on Mars, Jupiter's main cloud belts and its four Galilean moons, and the rings of Saturn. Brighter deep-sky objects like the Orion Nebula (M42) and the Hercules Cluster (M13) are also visible. How will the Skymax 102 perform on Jupiter with its 1300mm focal length? The 1300mm focal length is a major advantage for viewing Jupiter. Using the included 10mm eyepiece for 130x magnification, you will clearly resolve the two main equatorial belts. Under steady seeing conditions, you can push the magnification towards its 201x maximum with an optional shorter focal length eyepiece or Barlow lens to see more subtle cloud bands and potentially the Great Red Spot. Is the f/12.7 Skymax 102 good for deep-sky objects? While optimized for planets, the Skymax 102 can view many deep-sky objects. Its high-contrast optics make it excellent for splitting double stars and observing compact targets like planetary nebulae and globular clusters. However, its f/12.7 focal ratio results in a narrow field of view, making it less suitable for very large nebulae or open clusters that require a wider perspective. What kind of mount do I need for the Skymax 102? With an OTA weight of only 4.6 lbs, the Skymax 102 is very lightweight and versatile. It can be used on a sturdy photographic tripod for casual viewing or on a light-duty astronomical mount like a Sky-Watcher AZ-GTi or Star Adventurer GTi for more serious observing and tracking. Why choose the Skymax 102 Maksutov over a refractor of similar aperture? The main advantage is its compact size. A 102mm refractor with a 1300mm focal length would be over four feet long and difficult to manage. The Skymax 102 provides the same focal length in a 12.25-inch tube, making it far more portable and easier to mount. It also offers this performance without the chromatic aberration (false color) that can affect achromatic refractors. Is the Skymax 102 a good telescope for a beginner? Yes, it's an excellent choice. The Maksutov design holds its collimation well, making it very low-maintenance. The long focal length makes it easy to achieve high power for exciting planetary views, and the included accessories provide everything needed to start observing right away. Optical Design Maksutov-Cassegrain Primary Aperture 102mm Focal Length 1300mm Focal Ratio f/12.7 Mirror Coatings Radiant Aluminum Quartz (RAQ)™ coatings with 94% reflectivity Lens Coatings Fully Multi-Coated Glass Type BK7 / Borosilicate Secondary Obstruction (by diameter) 30% Secondary Obstruction (by area) 9% Light Gathering 28% more than 90mm model Dawes Limit 1.14 arc-seconds Rayleigh Limit 1.37 arc-seconds Limiting Magnitude 12.5 Maximum Magnification 201x Minimum Magnification 14x Focuser Primary Mirror Focusing OTA Length 12.25" OTA Diameter 4.625" OTA Weight (with accessories) 4.6 lbs Included Eyepieces 25mm & 10mm Wide Angle (1.25") Magnification (with included eyepieces) 52x / 130x Included Diagonal 1.25" Star Diagonal Included Finder Red Dot Finder Mounting V-style Dovetail Rail UPC 050234115100 Skymax 102mm Maksutov-Cassegrain OTA × 1 25mm Wide Angle Eyepiece (1.25") × 1 10mm Wide Angle Eyepiece (1.25") × 1 1.25" Star Diagonal × 1 Red Dot Finder × 1 V-style Dovetail Rail (pre-installed) Soft Carrying Case × 1 Download Polar Alignment Manual Sky-Watcher 2-Year Warranty
