8 achromat having a tube OD of 100 mm, from ScopeStuff, Part #CR40: 101_2120. A good model was the Celestron OMNI 102 cg4, a 4" f/10 achro paired with a decent equatorial mount. Celestron Inspire 100AZ Refractor Smartphone Adapter Built-In Refracting Telescope, Blue (22403) Easiest setup of any entry level scope. Alt-Az mount upgrade for Celestron Omni 102 - ES Twilight Nano? - posted in Beginners Forum (No Astrophotography): Hello all, newbie here who purchased an Omni AZ 102 recently. Page 1 of 2 - StarSense Explorer DX 102 - posted in Refractors : Hi, How is this for a first time beginner scope? There is not much on it. User rating, 4. Ball bearings in both axis of the mount for smooth performance. Page 1 of 2 - StarSense Explorer DX 102 - posted in Refractors : Hi, How is this for a first time beginner scope? There is not much on it. 0 4. The 102 mm refractor provides enough light-gathering ability to view all the best celestial objects in the solar. Check today’s. This is a user friendly and powerful telescope. The critical factor is not the telescope, it's the individual. 25" star diagonal. . Scope fell off, nothing broke (I had EPs in containers in pocket). and Canada is valid only to customers who purchased from a Celestron’s International Distributor or Authorized Celestron Dealer in the specifi c country. This Product. New Telescope: Which Accessories Are a Must? - posted in Celestron Computerized Telescopes: Hello from Indiana. +5. Add to Wish List. 2 Comments. Please try again later. 5 focal ratio, and a resulting focal length of 660mm. 90. so don't be put off by one man's awful review. 9:49 . The telescope’s wide field-of-view allows you to appreciate extended objects such as the Pleiades Star Cluster, Andromeda Galaxy, or simply panning the Milky Way. Manual altazimuth mount with altitude slow motion adjustment. Celestron PowerSeeker 70 70mm AZ Refractor Telescope and EclipSmart Solar Filter Kit. Our trusted partners, authorized Celestron dealers and. The 4" OTA, alt-azimuth mount, and tripod are accompanied by two 1. 1 reflector. The Celestron Omni 102 AZ is far, far better than my first scope. 25" star diagonal. The focal length is slightly different, with Orion StarSeeker having a focal length of 1300 mm and the Celestron NexStar having 1325 mm. 9 product ratings. Rings of Saturn are distinguishable from the planet, and Titan is visible with a good. Page 4 of 5 - Celestron 102mm AZ review - posted in Refractors : It appears as though Celestron offers 2 102 achros on altaz mounts. 25". . These seem to be the same as the Celestron 22155 (perhaps they are the Canadian version of the 22155). Not saying this is a bad scope but def take the review with a grain of salt and do not expect much of it out of the box. Celestron AstroMaster 102AZ is a great refractor with a slightly unstable mount. 5. It is recommended for entry to mid-level telescopes. The Package you receive is 22155 - - which is the same Omni XLT 102 AZ telescope scope & tripod BUT a different package. 3. Three safety screws securely hold the filter in place for a safe, snug fit. $ 610. The Celestron 8 - 24mm Zoom Eyepiece uses premium optics that are fully multi-coated for crisp, clear images. From where Im from, telescopes are quite expensive and Im limited to Celestron brands only. As is typical at this price range, the scope is a Fraunhofer achromatic doublet using 2 lens elements: A crown glass lens at the front, and a flint glass lens element behind it, separated by small foil spacers. FREE SHIPPING X-Cel LX 2x Barlow Lens - 1. 97kg in total weight (9. Dimensions & Weight: 1m optical tube & 14. Amazon. Mount Type. I originally considered buying the AZ version, but decided to go with this one due to several advantages over the AZ. 4-inch/10 mm (for 66x. You'll be getting very narrow views that any of the 2" focuser scopes above could surpass, just on field of view, to say nothing of their better resolving power on all objects. It's the time of year where people tend to hunt down cheap telescopes. With the folding accessory tray you just pop the tripod legs open, turn the lock knob and you’re ready to go. Style: Omni XLT 150 Telescope Omni XLT 120 Telescope Omni XLT 102 Telescope. 25” eyepieces. This Celestron solar filter features an orange tint, producing a natural look perfect for visual observing and capturing images through your telescope. Finished in a gunmetal blue pearl with white accents, the telescope's high-quality GC4. Your Omni AZ telescope also includes a 25. The Optical Tube. 102 mm Maksutov-Cassegrain features fully coated glass optics for sensational views of the Moon and planets as well as brighter deep space objects. com. 8 refractor with a focal length of 1000mm. Pair the telescope with the 9mm eyepiece to observe the moon and planets and the 25mm eyepiece to enjoy a wide-field view of stars and galaxies. Scope is secured to mount by one bolt. It has two padded dividers separating the OTA side and tripod of the case, but it doesn't completely separate the two. 5; Explore Scientific, 16 inch / F 4. Add Both to Cart. The scopes are the Omni AZ 102 vs Omni XLT AZ 102 f/6. The 102AZ is on a photo tripod head design and the XLT 102 AZ on the one-arm style with slo-mo controls. Quantity. Celestron AstroMaster Telescope Accessory Kit The AstroMaster Accessory Kit is designed to enhance the functionality and pleasure of using. The Omni XLT 102 is built on a seamless aluminum main tube and uses heavy-duty cast aluminum front and rear cells for structural rigidity. A good Alt-az mount is easier to use, whether refractor or reflector but that does not seem to be the question here. The Inspire 90 I mostly just bought for the accessories (I wanted the starfinder pro for my dob). The Celestron StarSense Explorer DX 130AZ is a 5. Buy Celestron StarSense Explorer DX 102AZ 102mm f/6. 95 $399. Omni AZ 102 Telescope with Smartphone Adapter and Bluetooth Shutter Remote. 100mm Refractor OTA; 660mm Focal Length, f/6. com : Celestron - PowerSeeker 76AZ Telescope - Manual Altazimuth Mount. Celestron Omni XLT 102 102mm f/9. 15 5/8” (397mm) to 15 7/8” (403mm) Meade 14" Schmidt-Cassegrain’s: 14” LX200 Series , RCX 400 14”. All optical surfaces on the Omni XLT AZ 102 are fully coated with XLT optical coatings. The focuser on the SSE 102 is better than the one on the old Omni 102 F/6. 5 Refractor. This manual alt-az mount features full 360° rotation, a standard 1/4"-20 mounting bolt for equipment, and dual slow-motion cables with. The white tube. When the bullseye turns green, it’s ready to view in the telescope’s eyepiece. Celestron NexStar 8SE: Save $310,. Slow motion rod control for smooth and accurate pointing. 9. This video is an in depth review of the Celestron Omni AZ 102mm Refractor. Get connected – the smart way to control your mount is with a mobile deviceCelestron is known for its Schmidt-Cassegrain optics,. 5 Focal Ratio, Fully Coated Optics, Manual Alt-Azimuth Mount, Locking Control Handle, 66x & 33x Power 1. I have the Omni one-arm version and it's ok for low power, fair for moderate power and . Powerful refractor telescope. GEQ mount, 660mm vs 1000mm focal length). Plus, this dual-purpose telescope with erect image optics can also be used during the day. 05 Nov 2023. 07 kg in total, it's not a heavy telescope by any means, but the 26-inch/660mm long optical tube and the large tripod does. Here is my review of the Celestron PowerSeeker 70AZ, my first scope. Celestron’s award-winning Nature DX binocular gets a major upgrade with the addition of ED objective lenses. Celestron. It is perfect for the Moon and planets, as well as large star c. Celestron 22065 Astro Master 102AZ Refractor vs Orion AstroView 120ST Equatorial Refractor Telescope - posted in Equipment (No astrophotography): Ive narrowed down my grab and go search to refractors. This allows the user to view faint deep-sky objects, as well as planets and the moon. Personally I prefer the 102 AZ over the 130 AZ as 4 inch achromats are great scopes for DSO. 5 Truss tube Dobsonian; Celestron PowerSeeker 70AZ Telescope ($10 Scope). I did an extensive side by side with my ES AR102. Celestron's Heavy-Duty Manual Alt-Azimuth Mount with Tripod is ideally suited to provide a stable observation platform for small- to medium-sized telescopes, spotting scopes, or large astronomical binoculars. All optical surfaces on the Omni XLT AZ 102 are fully coated with XLT optical coatings. REASONS TO BUY: +Very good quality optics. The package includes a 2-inch to 1. Although bigger and heavier than the ST80, the 102AZ is still portable . It has a 102mm aperture, an 8-inch focal length, and a 1000mm focal ratio. Page 1 of 5 - Orion StarBlast 102mm AZ vs Celestron 22150 Omni XLT AZ 102 - posted in Beginners Forum (No Astrophotography): Hello, I am a newbie and am looking for my first scope. Aperture: 4" (102mm), Eyepiece. Amazon. . Although bigger and heavier than the ST80, the 102AZ is still portable . Here is the analysis for the Amazon product reviews:. The 1. Add Celestron EclipSmart Solar Filter for SSE DX 102 / Omni AZ 102 to your order. Believe it or not I had a topic Good Replacement AltAz Mount/Tripod for Omni 102 F/6. Bold new design - The main telescope lens cap comes with a fully integrated smartphone adapter. If @bobro assumption is correct ie SW 102/1000 on an EQ3 - vs Celestron 130EQ then , in my book the SW 102 wins. Dad's channel . The Kuhlmanns . 25″ eyepieces, 20mm and 10mm. The Celestron Omni has a 102mm (4 inch) objective lens, making it bigger and badder than my Tasco. 8 Refractor EQ Telescope. $329. TelescopicWatch. (102) $99. Altazimuth. With the folding accessory tray you just pop the tripod legs open, turn the lock knob and you’re ready to go. Magnification: 240. The series also includes an 80mm f/11 refractor and a 114mm f/9 reflector, both for $180 on the lighter LT mount. Celestron will repair or replaceRecent Reviews. iOptron HAZ-46 Alt Azi Mount Review; Brandon Vernonscope 94mmF7 APO first impressions. 3. The AZ is the inferior version of this. 5 and it ain't bad. 25” eyepieces: a 25mm Kellner providing 26x with the DX 102 and a 10mm providing 65x. 25 mm multi-coated eyepiece - 20 mm eye relief, 50° FOV. Alcatel lucent i-240g-b user manual Alcatel 240g lucent Alcatel-lucent 8001 user manual pdf download. At this aperture and focal ratio, there is a fair amount of chromatic aberration, but sharp views of the Moon and planets are still possible. Based upon other posts here, I probably paid too much at $264. Pan handle Alt-Az control with clutch - for smooth and accurate pointing. Buy Celestron Omni XLT 102 102mm f/9. The only major downside is the price. For years, Celestron’s Omni equatorial mount has set the industry standard for elegant design. 95. The 102 f/6. After $50 OFF. . A beginner scope that’s easy to move and easy to use. At this aperture and focal ratio, there is a fair amount of chromatic aberration, but sharp views of the Moon and planets are still possible. After some research, I ended up with the Meade Infinity 102. New Omni manual slow-motion altazimuth mount uses worm gears for smooth, easy tracking of celestial or terrestrial targets and slip clutches. 8mm Eyepiece 2. Focal Length: 600mm. Videos for related products. . The Astro Fi 102 is a computerized alt-azimuth Maksutov-Cassegrain telescope perfect for terrestrial and celestial viewing on the go. Read Full Review. Meade recently announced a line of StarPro™ Refractor telescopes. Do you have any experience with this product?Celestron StarSense Explorer Review & Comparison. Affordable, easy to use, and best of all, ISO-certified Solar Safe, all Celestron EclipSmart products comply with the latest ISO 12312-2 standards. Recent Reviews. 25" Eyepieces, 90° Erect-Image Diagonal, Adjustable. Sky-Watcher Skymax 127 SynScan AZ GoTo. CG-4 German Equatorial mount with setting circles and slow motion controls - to accurately locate and track sky objects. Rating: 4/5 Pros Solid singular eyepiece and star diagonal prism Great for planetary viewing Reasonably portable Easy to set up Easy to maintain over time Great CG-4 mount Cons Limited accessories provided Not great for. 5) - posted in Beginners Forum (No Astrophotography): Hi everyone. Videos for related products. com. Videos for related products. Celestron's AstroMaster 102AZ Refracting telescope comes ready to perform straight out of the box. 25" eyepieces, 20mm and 10mm. Eyepieces Included: 25 mm. 60 + 20; 60; 120; 240;The StarTravel 102 AZ3 comes with a set of mostly acceptable accessories. For the AstroMaster 130EQ, the highest useful magnification is achieved with a 2. This proprietary technology—found on our observatory-grade telescopes—ensures maximum light transmission and Omni’s signature crisp views. Cleaning kit includes 10 lens wipes, lens cleaning fluid, a lens cloth and retractable lens brush. It facilitates smooth and easy tracking of celestial or terrestrial targetsand slip clutches for quick and easy pointing. This is the best measurement of a. Page 1 of 2 - Celestron AZ102 vs Inspire 90AZ -- CA question - posted in Refractors : Just curious in regard to CA and refractors. Explore Scientific 82° 8. [email protected]. However, when using it, it's best to align it during the day. I got it used at a thrift store for $10. Telescopes such as the Celestron Astro Fi 102 or Sky-Watcher Skyliner 200P are best suited for beginners. 5 good value brand new at 188USD? - posted in Beginners Forum (No Astrophotography): My 7 year old daughter is getting very interested in astronomy and i have the opportunity to purchase the Celestron Omni xlt 102AZ for $250CAD (188usd) as her(my) first scope, it is brand new in box. Eyepieces: Like it's. I would also like to add a larger eyepiece maybe a 40mm and a higher magnification eyepiece. 7 out of 5 stars : Best Sellers Rank #2 in Telescope Cases #24 in Telescope Accessories: Date First Available :The only difference potentially is the coatings on the lens. 95. This solar filter is custom designed for the Celestron AstroMaster 114EQ and Celestron 114AZ-SR telescopes. 0 % 3. 20 on Amazon. Low (26mm), medium (9mm), and high (6. The two eyepieces offer different magnifications to view your intended object. An achromatic refractor uses a lens with two separate pieces of crown and flint glasses to keep chromatic aberration under control, which the 90AZ does well on all except the brightest. It’s part of the AstroMaster range which also includes some other models we have reviewed like the AstroMaster 70EQ and 70AZ, AstroMaster 76EQ, AstroMaster 90AZ and the two most popular models from this series the AstroMaster 114EQ and. 5 doublet, not a lot on the web about this scope, my friend wants it as a low cost scope for outreach, any owners out there?, I gather it sells for less than a good eyepiece,and comes with a mount, thankyou for any help offered, Dave. It appears as though Celestron offers 2 102 achros on altaz mounts. This was the first telescope I ever bought, it has served me well but its starting to show its age, along with. Rating: 4/5. The OTA assembly is supplied with decent tube rings and a dovetail. Another suitable model could be the Vixen 80Mf bundle with the altazimuthal Porta mount If want a more compact tube, either a 5" f/5 Newtonian reflector or a small catadioptric (depending on the budget may opt for the 3. 25 mm multi-coated eyepiece - 20 mm eye relief, 50° FOV. There's also the Explorer DX 130AZ ($400), a 130 mm Newtonian reflector telescope; the StarSense Explorer LT 114AZ ($180), a 114 mm Newtonian reflector telescope; and the StarSense Explorer LT. Style: Omni XLT AZ 102Set: Telescope Only Verified Purchase. UHC/LPR Filter - 1. I am sure those of you who have been astronomy enthusiasts like I have for a period of time have been asked at. com. Such perfect aperture design makes sure that there’s minimal loss of precious cosmic light and so helps you see deeper in space. Dad's channel . Dad's channel . Open Monday through Friday 9-6pm PST and Saturday 10-4pm PST. The focuser is a rack-and-pinion. Amazon. This solar filter is custom designed for the StarSense Explorer DX 102AZ and Omni AZ 102 telescopes. Read Full Review. 25-inch eyepiece adapter, 1. 5 Focal Ratio, Fully Coated Optics, Manual Alt-Azimuth Mount, Locking Control Handle, 66x & 33x Power 1. 999% of visible light. For a budget option, it would make a good amateur telescope for recreational use. Focal ratio : f/9. Articles & Reviews . Other than that, the heritage 150, heritage 130, or the spaceprobe 130st for a tripod scope. Click to play video. 0 out of 5 stars 88 ratings. Have a couple questions hopefully I can get some advice on. 3mm) magnification eyepieces give you variety for any viewing situation & 2x barlow lens. I know because I have one and its a keeper! You might be able to call Astronomics and see if they can work out a deal mixing the Celestron Omni XLT 102 f/9. It's in the top 3 bestselling telescopes and has a couple of popular alternatives in the same price range, such as Celestron AstroMaster 130EQ or Celestron NexStar. Sky-Watcher Evostar ED APO 72mm f/5. ready for shipping. Add to Wishlist. Tagged: Beginner refractor telescope, Beginner telescope, Celestron refractor, Celestron StarSense app, Celestron StarSense Explorer AZ 102 review, Celestron StarSense Explorer AZ 102 test report. Holidays. 25" Eyepieces. Our Celestron Telescopes Reviews are a brilliant way to get an unbiased point of view on Celestron Telescopes. This is my first post here so bear with me. 102mm (4”) refractor with high transmission XLT optical coatings and enough light gathering ability to view all the best celestial objects. The Celestron 22150 Omni XLT AZ 102 has good reviews from independent sources. Celestron Inspire AZ Series is a well-known option at the top of the price range. The Meade Infinity 102AZ is a good scope and excels at what it was meant for – rich-field deep-sky viewing. The Celestron Inspire 100AZ is a beginner’s scope with an ingenious adaptor for astrophotography. 8. The Omni can view all the best celestial objects. 5 on a lightweight alt-az mount. 1-inch) Newtonian reflector. This red dot finder keeps the sky right-side up, matching what you see with your unaided eyes. The series also includes an 80mm f/11 refractor and a 114mm f/9 reflector, both for $180 on the lighter LT mount. Lens for Omni xlt 102az - posted in Beginners Forum (No Astrophotography): Hi, I shortlisted two lens to increase magnification of the 660mm scope to 225x. Find helpful customer reviews and review ratings for Celestron – Omni XLT 102 Refractor Telescope – Hand-Figured Refractor with XLT Optical Coatings – Manual German Equatorial EQ Mount with Setting Circles and Slow Motion Control – Includes Accessories at Amazon. The Celestron AZ 102 Telescope comes equipped with a smartphone adapter and bluetooth remote. Find helpful customer reviews and review ratings for Celestron 22150 Omni XLT AZ 102mm Refractor (Blue) with NexYZ 3-Axis Universal Smartphone Adapter at Amazon. 2. A family member helped me mod it to give the bolt a spot to hang. 114mm manual Newtonian reflector telescope with fully coated glass optics and a lightweight frame. It is. ready for shipping in 24 h. First: regarding the poor reviews: & reason for the deducting a Star. I wanted a light, GOTO refractor scope of at least 4 inches aperture for casual use and possible activities at “star parties” where it could be set up easily after transportation on the back seat of the car. richiedavid (25444) 100% positive feedback. 50° FOV. Being a fast achromatic refractor with an inexpensive lens, good high-power performance isn’t expected to begin with. The 2" OIII narrowband filter isolates just the two doubly-ionized oxygen lines (496 and 501nm lines) emitted by planetary and emission nebulae, while blocking the rest of the overall spectrum of light. The 10mm eyepiece is actually a “reverse Kellner” or RKE optically, and provides sharp images, which is impressive for a bottom-tier eyepiece with an entirely plastic housing that you can frequently find on. First: regarding the poor reviews: & reason for the deducting a Star. Features: 80mm refractor with fully coated glass optics for bright, sharp views. FREE SHIPPING X-Cel LX 2x Barlow Lens - 1. Microscope Kit Manual. I've managed some basic astrophotography with an older Canon T4i (650D). The telescope’s wide field of view allows you to appreciate extended objects such as the Andromeda Galaxy, Pleiades Star Cluster, or simply panning the Milky Way. Please contact them for any warranty service. Tips & Reviews. Omni manual slow-motion alt-azimuth mount uses worm gears for smooth, easy tracking of celestial or terrestrial targets and slip clutches for quick and easy pointing. Solar Safe TechnologyPage 3 of 4 - Advice for upgrade(s) to kit Celestron Omni AZ 102 Refractor (660mm, f/6. Celestron Omni XLT 102mm Refractor Telescope - 21088. Celestron 2 Year Limited Warranty. First light for the scope was a couple of nights ago. Includes 25mm and 10mm eyepieces, StarSense smartphone dock, erect image diagonal, a red dot finderscope (in case you want to use the telescope without your phone), and a sturdy, full-height tripod. Following the theme of this telescope, the Celestron Inspire 100AZ Refractor can see a little bit of everything. Celestron is one of the brands that is most recognized for its industrial design. Learn more. Am a total newbie. Finished in a gunmetal blue pearl with white accents, the telescope's high-quality GC4. Altazimuth Mount with Slow Motion Control Rod. When it arrived, it indeed felt and looked cheap, and the mount felt like it was going to be a disaster. The Celestron Omni has a 102mm (4 inch) objective lens, making it bigger and badder than my Tasco. Read honest and unbiased product reviews from our users. Heavy-duty pre-assembled stainless steel. This is because it has solid optics that are well suited for a variety of different stargazing types. Celestron Oxygen III Narrowband Filter - 1-1/4in 93623. . . but would rather not worry about collimation for the running outside for a quick. Please write a review. ASTROMASTER 130EQ TELESCOPES ECLIPSMART SOLAR FILT…. . At the core of the system is a 114mm primary mirror which is fully-coated. The NexStar 102SLT would be a decent scope were it not for its wobbly mount - as such, our recommendation is to buy something else. Japan, Im hopeful that I will now be able to see some deep-sky objects from my heavily polluted backyard. The Celestron Astro Fi 102 is a Maksutov-Cassegrain telescope. The StarSense app also lists 5-inch and 6-inch Schmidt-Cassegrains. 9:00 . $39. 2-inch to 1. There is a slight difference in objective cell design, but that is about the only difference except for paint. It costs far less than my $500 limit. 102 Millimeters: Telescope mount description: Altazimuth Mount:. It comes with a 6×30 Finderscope (though at different times this scope has been sold with a Red Dot Finder instead), a pair of 25mm and 10mm “Super” (Modified Achromat/Kellner) eyepieces, and a 45 degree prism diagonal. Page 2 of 5 - Orion StarBlast 102mm AZ vs Celestron 22150 Omni XLT AZ 102 - posted in Beginners Forum (No Astrophotography): To me you want to start out with something that gives lower power, wide field views so that it will be easier to find what you are looking for or just plain sweeping the field to take as much in as possible, those awe. The Celestron Omni XLT 102 is a 102mm (4”) f/9. $3695. Another suitable model could be the Vixen 80Mf bundle with the altazimuthal Porta mount If want a more compact tube, either a 5" f/5 Newtonian reflector or a small catadioptric (depending on the budget may opt for the 3. An easy-to-use computerized telescope with SkyAlign Technology. 102mm is good enough for a lot of bright to moderately bright objects. 1:08 . While the Celestron AstroMaster 130mm isn’t without its flaws, it’s still a capable scope that’s sure to delight beginners and experienced stargazers alike. 51 inches (80 mm), this refractor is suitable for observations of the brighter members of the solar system. The 102mm refractor provides enough light-gathering ability perfect for terrestrial and celestial viewing on the go. $239. at. When the bullseye turns green, it’s ready to view in the telescope’s eyepiece. Eyepiece/Magnification: 25mm Plössl (1. Here's our review. I have the Omni one-arm version and it's ok for low power, fair for moderate power and . Focal Ration: f/6. At $225 under these days of higher prices that is a good value for a 4" scope and basic mount shipped. Celestron AstroMaster 102 AZ. Optics Telescopes Telescopes Refractors Celestron AstroMaster 102AZ Eyepieces for AstroMaster 102AZ 102mm f/6. Star Diagonal: Erect image 90 degree (1. check it out on amazon. Accessory Tray. Celestron engineers did an incredible job incorporatin. Celestron Omni AZ 102 102mm/f6. 25″ Plossl 25mm. Celestron PowerSeeker 127EQ; North Star Equatorial Platform; iOptron HAZ-46 Alt Azi Mount Review; Brandon Vernonscope 94mmF7 APO first impressions. Figure 1. StarSense Explorer DX 130AZ vs 102AZ - posted in Celestron Computerized Telescopes: Hi all, Ive been following the StarSense Explorer main thread, which has a lot of great information and seems particularly targeted towards adapting the bracket/mirror towards other telescopes. The Professional's Source Since 1973. Here are the specs: Celestron Omni AZ 102 Telescope Product Info Costco Item#: 1349499 Costco Price: $199. 5 Refractor Optical Tube, Single Fork-Arm Manual Alt-Azimuth Mount, Dual Axis Slow-Motion Control Arms, Includes 26x &. The Celestron NexStar 102SLT is a 102mm (4”) f/6. 25 mm multi-coated eyepiece - 20 mm eye relief. The mount can accommodate the 5 inch SCT but not any larger diameter SCT or MCT scope. 95 . The Sky Watcher 102 is a small rich-field refractor. Aperture: 102mm.