Sky-watcher 102mm F/13 Maksutov-cassegrain Telescope (ota Only)
- Product Code: ga26846
-
Similar to their Schmidt cousins, this 102mm f/13 Maksutov-Cassegrain Telescope from Sky-Watcher exchanges the conventional front corrector plate with a convex meniscus lens, which results in a smaller secondary mirror—limiting obstruction and increasing contrast, while eliminating the need for periodic collimation. The Maksutov 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 solar, lunar, planetary, and deep-sky observation of bright objects like stars and clusters.
The scope is outfitted with a 1.25" visual back and, to get users started, Sky-Watcher includes 10 and 25mm eyepieces that produce low and moderate magnifications and a 90° star diagonal for more comfortable viewing when the optical tube assembly (OTA) is pointed at or near the celestial zenith. The OTA is offered here without a mount or tripod for users who have a platform 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 easy attachment onto many 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.
102mm Aperture Maksutov-Cassegrain OTA 1300mm Focal Length, f/13 Focal Ratio Limited-Diffraction Optical System Fully Multi-Coated Optics Internal Primary Mirror Focusing System 25 & 10mm 1.25" Eyepieces 1.25" 90° Star Diagonal Red Dot Finderscope Vixen-Style Dovetail Plate OTA Only - Mount and Tripod Required
Parameters | |
---|---|
Optical Design | Maksutov-Cassegrain |
Aperture | 102mm |
Focal Length | 1300mm |
Focal Ratio | f/12.7 |
Eyepiece Barrel Diameter | 1.25" |
Diagonal | 90° star |
Finderscope | Red dot |
Tripod | None |
Mount Type | Vixen-style dovetail plate |
Power Source | N/A |
Optical Tube Dimensions | Not specified by manufacturer |
Weight | 4.6 lb / 2.1 kg |
Packaging Info | |
Package Weight | 8.3 lb |
Box Dimensions (LxWxH) | 23 x 10 x 10" |
- 102mm aperture
- f/13 focal ratio
- 1300mm 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: 1.01 arcsec
- Internal primary mirror focus
- 1.25"-diameter visual back takes 1.25” eyepieces and accessories
- Requires user-supplied mount and tripod
- Vixen-style dovetail plate
- Weight: 4.6 pounds including OTA, dovetail plate, finder, diagonal, and eyepiece
- Eyepieces:
- 1.25" barrel diameter
- Accept most 1.25" astronomical filters
- 25mm eyepiece yields 52x power
- 10mm eyepiece produces 130x magnification
- Diagonal:
- 1.25" snout and eyepiece holder
- 90° angle places head in a comfortable viewing position
- Star configuration corrects image horizontally for terrestrial use
- Finderscope:
- Unmagnified view provides a wide field of view for easier alignment and faster star-hopping navigation
- Red center aiming dot won't obstruct objects
- Variable intensity to preserve night-adjusted vision
Related Questions and Answers
Q: 1. Can you use a hand controller thru the aux connectors and not just smart phone or tablet just in case say a person's phone or tablet breaks?
A: Yes, you can use a NexStar hand controller through the aux port to control the telescope. Sincerely, Garrett at Celestron
Q: 2. What are some good goto mounts / tripods for this telescope?
A: If you are looking for a manual AZ mount the Celestron Heavy-Duty Manual Alt-Azimuth Mount with Tripod BH #CETHDAA • MFR #93607 If you are looking for a Motorized Computer-Controlled EQ Mount the Explore Scientific iEXOS-100-2 PMC-Eight Equatorial Go-To Tracker System BH #EXIEXOS01002 • MFR #ES-IEXOS0100-02
Q: 3. can I use a 3x barlow lens with this?
A: Yes you can use a 3x Barlow with the Sky-Watcher 102mm f/13 Maksutov-Cassegrain Telescope.
Q: 4. hi, can i use celestron starseeker camera and celestron gps device with that scope? thank you.
A: You can connect Celestron's SkySync GPS unit, NexImage and Skyris imaging cameras to the AstroFi 102mm telescope.
Q: 5. Does this scope accept a standard T-ring adapter for Canon DSLR 7DII? Does it accept an eyepiece projection T-ring tube?
A: If you have a Nikon F mount camera or a Canon EF mount camera it will use the Sky-Watcher T-mount rings directly
Q: 6. Do you sell a focal reducer that would be suitable for this telescope, the 7 inch Maksutov f/15, or do you know of one?
A: The Celestron f/6.3 Reducer/Corrector will be compatible with this scope. Website link: http://bhpho.to/1JT4a4N
Q: 7. what is the actual size of the central obstruction INCLUDING the baffle?
A: The Length is 22 , and the Width is 8.625 .
Q: 8. Can i use this with a PC laptop instead of smartphone?
A: Hi,The telescope works through the free app SkyPortal, which is downloadable on iPhone or iPad or android phones. No app is made for pc or laptop as of my recollection. Good luck
Q: 9. can you mount a Sony A6600 to the telescope and if so what parts do i need. also can you mount a Samsung Note 8? Thanks
A: Hello, The smartphone, can connect with the : https://www.bhphotovideo.com/c/product/1201285-REG/tele_vue_sfa_0001_fonemate_universal_smartphone_adapter.html You A6600 can connect to the scope with two T mpiunt parts: https://www.bhphotovideo.com/c/product/202135-REG/Celestron_93625_SLR_35mm_OR_Digital.html https://www.bhphotovideo.com/c/product/839140-REG/vello_la_nex_t_lens_mount_adapter.html
Q: 10. a) Can we use a power adapter (dc/AC/Car) with this if battery runs out ? If yes, which model ?
A: Yes, there are a couple power options for this. One can use the Celestron AC to DC Power Adapter, BH #CEACDCPA (https://bhpho.to/3yhjx6R). One can also use the Celestron Car Battery Adapter (25'/7.7 m), BH #CECBAU2000 (https://bhpho.to/3vNHf98).
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