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Sky-Watcher

Sky-Watcher Skymax 102mm Maksutov-Cassegrain - Large Aperture Compound-Style Reflector Telescope

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Style: 102mm Mak-Cass


Features

  • EXPERTLY MATCHED OPTICS: The Skymax series of Maksutov-Cassegrain optical tubes features matched primary and secondary mirrors with an expertly coated corrector plate that delivers contrast-rich views with charcoal-black skies.
  • 94% REFLECTIVITY MIRROR COATINGS: Using a borosilicate primary mirror with an aluminum coating and a quartz overcoat, Sky-Watcher Maksutov-Cassegrains produce a 94% reflectivity rating for outstanding light transmission.
  • VIXEN-STYLE DOVETAIL: An industry standard, the Vixen-style dovetail is the most commonly used dovetail plate for astronomy. In addition to this, all Maksutov-Cassegrains come with a 14-20 tripod thread under each dovetail bar, allowing users to mount to most photographic tripods.
  • FULLY BAFFLED TUBE: Utilizing a fully-baffled tube, Sky-Watcher Maksutovs prevent stray light from interfering with your viewing experience.
  • EVERYTHING YOU NEED: The 102mm Skymax Maksutov-Cassegrain comes equipped with everything you need to get started, including: 10mm and 25mm 1.25-inch eyepieces, red-dot finder, 90-degree star diagonal, and a padded carrying bag.

Description

Sky-Watcher’s premiere line of Maksutov-Cassegrain telescopes create a perfect blend of aperture and lightweight portability. This telescope design has a reputation for sharp, high-contrast views, ideal for planetary observation. Maksutov-Cassegrain telescopes serve as an alternative to Schmidt-Cassegrains and Newtonians, and offer astronomers a large visual aperture, high contrast, and long focal length in a compact package. Maksutov’s deliver better planetary detail than other telescopes due to a focal length that’s 5-7 times longer, increasing overall magnification. Maksutov-Cassegrains also use a meniscus-shaped corrector plate, eliminating any spherical aberration caused by the primary mirror.Our Maksutov series telescopes deliver refractor-like views and superior contrast while allowing for larger apertures at a fraction of the cost. Using unparalleled lens elements and reflective mirrors, you’ll benefit from Sky-Watcher’s dedication to quality optics. Our Maksutov series features a borosilicate primary mirror with an aluminum coating and a quartz overcoat, producing 94% reflectivity. The corrector plate utilizes our proprietary Metallic High -Transmission Coatings (MHTC ), giving visual astronomers professional-grade optics, creating a unique viewing experience.In addition to the visual benefits of Sky-Watcher Maksutovs, these serve as excellent optical tubes for imaging planetary, lunar, or solar (with use of a solar filter). For astronomers looking to start in astrophotography, the Sky- Watcher Maksutovs deliver exceptionally long focal lengths, necessary for imaging planetary detail. This provides an increased image scale, forgoing the need of a barlow lens or other accessories that may increase exposure times.As customary with all Sky-Watcher products, the Maksutov series includes a bundle of accessories, including: 10mm and 25mm 1.25-inch eyepieces, 1.25-inch adapter, 90-degree star diagonal, and a padded carrying bag.

Brand: Sky-Watcher


Model Name: Sky-Watcher Maksutov-Cassegrain 102mm


Eye Piece Lens Description: Barlow


Objective Lens Diameter: 102 Millimeters


Telescope Mount Description: Altazimuth Mount


Product Dimensions: 12.25"D x 4.63"W x 4.63"H


Focus Type: Manual Focus


Power Source: Battery Powered


Finderscope: Reflex


Item Weight: 4.6 Pounds


Eye Piece Lens Description: Barlow


Mount: Altazimuth Mount


Focus Type: Manual Focus


Power Source: Battery Powered


Finderscope: Reflex


Compatible Devices: Camera, Smartphone


Coating: Fully multi-coated


Focal Length Description: 1300 millimeters


Zoom Ratio: 52x to 130x


Additional Features: Maksutov-Cassegrain design, large aperture for size, fully baffled tube, Vixen-style dovetail, red-dot finder, 90-degree star diagonal


Objective Lens Diameter: 102 Millimeters


Item Dimensions D x W x H: 12.25"D x 4.63"W x 4.63"H


Item Weight: 4.6 Pounds


Brand: Sky-Watcher


Model Name: Sky-Watcher Maksutov-Cassegrain 102mm


Global Trade Identification Number: 00


Manufacturer: Sky-Watcher


UPC: 050234115100


Manufacturer Part Number: S11510


Model Number: S11510


Warranty Description: Two-year


Built-In Media: Eyepieces, Diagonal, Carrying Case, Finder


Unit Count: 1.0 Count


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Thursday, Aug 13

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews

    • Incredible Performance in a Compact Design – Perfect for Planetary Viewing
Style: 102mm Mak-Cass
The Sky-Watcher Skymax 102mm Maksutov-Cassegrain is an outstanding telescope, especially if you’re looking for sharp, detailed views in a compact and portable setup. What really impressed me is the image quality. The optics are excellent—crisp, high-contrast views of the Moon, planets, and even some brighter deep-sky objects. Jupiter’s bands, Saturn’s rings, and lunar details come through beautifully, especially when paired with a good eyepiece. The Maksutov design is a big advantage. It’s compact, easy to transport, and holds collimation very well, so you don’t have to constantly adjust it like some other telescope types. It’s a great grab-and-go option for quick observing sessions. Build quality is solid and feels premium. Everything from the tube to the focuser is well-made and reliable. It also works great on different mounts, making it a versatile choice whether you're a beginner or a more experienced user. Another plus is how user-friendly it is. Setup is straightforward, and once you’re up and running, it’s easy to use and maintain. ... show more
Reviewed in the United States on April 9, 2026 by Irene
    • sky watcher 102
Style: 102mm Mak-Cass
I like very much. Can see more detail on nebulas than I could with my other scopes. One is quite larger. Good on planets. Can finally see the bands on Jupiter and Saturn! Nice and light, easy to bring in and out, so getting alot of use. Also a perfect travel scope that sees good detail. And I've even had a comment on the paint job. It is very pretty. Happy I chose this one. I mounted it on an explore scientific first light. (Happy with that purchase too) ... show more
Reviewed in the United States on November 18, 2024 by chuck
    • Excellent Value For Money
Style: 102mm Mak-Cass
First light for this scope, was held in unfair conditions - a warm Texas summer evening with a full moon. Needless to say I didn't expect much...but I was surprised! Jupiter showed excellent detail, the Great Red Spot easily seen and some structure visible on the cloud band edges. Saturn, also was a delight to view, even though it laid a lot closer to the moon. Good contrast, the Cassini Division prominent, cloud bands on the planet view-able. I was really impressed. The scope arrived collimated out of the box, no need for any adjustment. The laser finder does what it needs to do, but does feel like it may need upgrading in the future...it doesn't feel like it could take too much abuse. The included eyepieces are OK, not the best you can get, but certainly do show the potential of the scope. Certainly look at upgrading the eyepieces in the future and including a barlow. The bag that is included I intended to replace straight away anyway. In my case, one of the clips on the straps was broke on arrival. So in short, great optics!. For the scope alone its worth the money. For planetary and lunar viewing, its the perfect grab and go scope. Some Deep Sky Objects, such as Globular Clusters and Planetary Nebulae are also well within its reach. The accessories are a valued addition to the package, but if you are looking at serious observations, you may consider upgrading some of them over time. I cant mark it down for the accessories though, because the optics are top notch. Sharp, great contrast, no noticeable color aberrations. Thoroughly recommended!! ... show more
Reviewed in the United States on July 18, 2019 by Amazon Customer
    • Great looking scope with very nice views so far!
Style: 102mm Mak-Cass
Review Image by william p
Review Image by william p
So far so good. The one I bought was sold as "used- very good" and was heavily discounted. The version I received, to my relief, had the collimation screws as advertised on Amazon for the new model. A speck of debris inside the tube immediately caught my eye. Shining a light into the tube (never do that to yourself) revealed a miniscule amount of debris and a slight smudge on the corrector plate; nothing I was concerned would significantly affect performance. This is a nice looking scope. I like the finish. This scope is light but feels substantial for its size. The caution with this scope is that, despite its compact size, it is easy to under mount due to its long focal length. It is designed to be used at medium to high powers and so will amplify any shakiness to the point of nuisance. Desiring this scope to function as a grab-and-go instrument, I was concerned when my lighter eq mount couldn't keep this scope steady when being brought to focus or repositioned with slow motion controls, taking several seconds to stop wobbling. Despite recommendations against doing so, I mounted this on my fluid panhead photo tripod and to my surprise this worked very well. I now experience no wobble at the eyepiece while focusing or viewing. This pairing was my original hope as this setup is extremely portable and versatile, allowing for simple height adjustments, standing or seated. Of course it will be rainy and cloudy for days on end because I have a new scope. However, I have had a couple of less than ideal moments that nevertheless allowed some testing of the optics. A mak cass is said to specialize at sharp, contrasty lunar and planetary observing as well as double star splitting. It gave up an effortlessly sharp saturn in the early a.m. Just tonight I observed the moon. At 140-160x the view was razor sharp and contrasty. I noticed a couple of rimae inside a crater that I now wish I had taken the time to find on a lunar map. I took the power to 195x using a 20mm redline with a celestron 3x barlow. Still effortlessly sharp. After that, I split the double-double in Lyra. No problem. This thing does what it is meant to, beautifully. So, 5 stars. Under better seeing conditions I'm looking forward to seeing what else it can do. I was able to nab the ring nebula no problem before haze and clouds drifted in. I did swap the diagonal out for a William Optics dialectric I already owned. Svbony sells a nice, affordable dialectric. The included diagonal might be fine. The included red dot finder works great. I will probably go back and forth between the red dot and an Orion 9x50 finderscope that I'm happy to be able to use with this scope. The only issue I see limiting this scope's grab-and-go potential is its cooldown time, reportedly 30 minutes or more. Keeping that in mind and planning accordingly sort of flies in the face of the concept of grab-and-go, but it is what it is. Otherwise, it can still be used at lower powers til the unit reaches ambient temperature. Um, I made a temporary dew shield with construction paper. I like the soft carrying case that came with the scope. I guess that's about all I can say for now. Easy 5 stars for performance vs price. Hmm...I just realized this thing can easily handle my binoviewers, which makes this my only small scope that can. It's also my only scope that doesn't require a barlow to bring my binos to focus. Can I give this scope 6 stars? ... show more
Reviewed in the United States on July 1, 2025 by william p

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