FirstLight 100mm f/14 Maksutov-Cassegrain Telescope with Nano Mountis a portable, yet powerful observation platform that can achieve high magnifications for detailed views of the Moon and planets and has the ability to reach out past our solar system to observe brighter deep-sky objects such as nebulae and galaxies.

The Maksutov-Cassegrain optical configuration is engineered with a convex meniscus lens that not only eliminates the need for periodic collimation, but by the nature of the lens requires a smaller secondary mirror that limits obstruction and increases contrast. The Maksutov optical path results in a slower focal ratio and narrower field of view versus a similar Schmidt design, but the optical benefits make this a useful scope for planetary and double-star observation.

The scope features the manual Twilight Nano alt-azimuth mount with dual-axis control cables that allows users to track objects as they move across the night sky. Its stainless steel tripod provides a stable observation platform, and several observational accessories are provided that include a 25mm eyepiece, a 90° star diagonal, a universal smartphone eyepiece adapter, and an unmagnified red-dot finderscope.

100mm Catadioptric OTA    1400mm Focal Length, f/14 Focal Ratio    Fully Multi-Coated Optics    Internal Focusing Mechanism    1.25" 25mm Eyepiece and 90° Diagonal    Twilight Nano Manual Alt-Az Mount    Dual-Axis Slow Motion Cables    Red-Dot Finderscope    Smartphone Eyepiece Adapter    1.25" Stainless Steel Tripod with Tray

• 100mm aperture
• f/14 focal ratio
• 1400mm focal length
• Compact Maksutov-Cassegrain optical configuration
• Front convex meniscus lens corrects spherical and chromatic aberrations and comas (off-axis aberrations) across the entire field of view
• Smaller secondary mirror reduces obstructions and increases contrast and sharpness versus Schmidt-Cassegrains
• Internal focusing mechanism with 1.25" visual back

• Manual alt-azimuth single-arm fork mount
• Dual-axis slow-motion tracking cables
• Cables terminate in easy-to-manipulate knurled knobs
• Quick release Vixen-style dovetail saddle

• 1.25" stainless steel legs
• Fully collapsed with head: 42"
• Minimum height, with head: 36", to center of dovetail
• Maximum height, with head: 45"
• Accessory tray

• 1.25" 25mm Plössl eyepiece yields 56x magnification
• 1.25" 90° star diagonal places head in comfortable position, especially when optical tube assembly is aimed at or near the zenith
• Smartphone adapter attaches over eyepiece and allows any smartphone to be used for astrophotography
• Red-dot finder: Unmagnified for fast subject acquisition with variable red illumination to protect night-adjusted vision

Related Questions and Answers

Q: 1. 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).

Q: 2. 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: 3. What is the weight of just the scope?

A: The weight of the OTA is about 4 lbs.

Q: 4. Is the dc jack that is on the telescope is of non-standard length ? I couldn't fit any of the existing 12v dc power adapters that I had. Do telescopes have a different jack length ? Is there a way I can use the standard 12v dc power supply with it (using some connectors perhaps ?) . Standard dc jack length is 10mm, while this telescope requires around 13mm. Is that correct ?

A: The Celestron AC to DC Power Adapter (BH #CEACDCPA • MFR #18778) is the correct power adapter for the Celestron Astro Fi 102mm f/13 Maksutov-Cassegrain Telescope. This is a 12 volt 2A with a 5.5mm DC plug on the end. This plug has an inner diameter of 2.1mm (.08"), and a length of 10mm - 15mm (.39" - .59").

Q: 5. What solar filter will fit this scope?

A: Alpine Astronomical 100mm Baader AstroSolar BDSF 3.8 White-Light Digital Solar Filter for Telescopes BH #ALBDSF100 • MFR #BDSF-100 https://www.bhphotovideo.com/c/product/1348139-REG/alpine_astronomical_bdsf_100_baader_3_8_od_digital.html

Q: 6. Can a Cell Phone be hooked up for pictures?

A: Yes a Smartphone can be attached to this Scope with an Adapter.

Q: 7. Can this skywatcher scope be mounted celestron's heavy duty alta az mount?

A: Yes this would be able to Mount on a Celestron Heavy-Duty Manual Alt-Azimuth Mount with Tripod.

Q: 8. Does "package weight" mean total optical tube weight with included diagonal and finder scope?

A: The " Package weight" for the Explore Scientific FirstLight 152mm f/12.5 Maksutov-Cassegrain Telescope includes the items listed " In the Box" the telescope's OTA, the Eyepiece, the Red-Dot Finder, the 2" 90° Star Diagonal with Reducer Adapter, the Universal Smartphone Digiscoping Adapter, and the Cradle Ring Assembly.

Q: 9. 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: 10. Can you recommend a compatible focal reducer for this scope?

A: Alpine Astronomical Alan Gee Mark II Telecompressor BH #ALAGII • MFR #AGII https://www.bhphotovideo.com/c/product/1403600-REG/alpine_astronomical_agii_alan_gee_mark_ii.html