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Sky-Watcher Esprit 100 mm ED APO Triplet Refractor - S11410
SKU: SKY-S11410

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What We Like About the Sky-Watcher 100mm Esprit Refractor



  • The 100mm air-spaced ED APO Triplet optics, made of FPL-53 ED and Schott BK-7 glass, and coupled with multi-layers of a high transmission coating, yield sharp, high contrast views with no extraneous color.

  • A thread-on doublet field flattener is included in the Sky-Watcher 100mm Esprit Refractor package, providing a flat field from edge-to-edge.

  • A good focuser is imperative when imaging, and the SW Esprit 100mm comes with a 2.7" linear power focuser with micro-focusing capabilities.

  • The dew shield on the Esprit 100 retracts, making the length 7" shorter for storage and travel.

  • A nice selection of accessories comes with this Esprit, including a 2" dielectric diagonal, a 9 x 50 erect-image finder, a Canon camera adapter, tube brings, and an 18.5" x 10.5" x 22.5" aluminum case. Add a mount (the rings have a Losmandy- style dovetail bar) and a few eyepieces, and you're good to go.


More About Sky-Watcher Esprit ED Triplet APO Refractors



Designed with the discerning astrophotographer in mind, Sky-Watcher USA’s top-of-the-line Esprit refractors deliver the kind of imaging performance one would expect from telescopes costing thousands of dollars more.

With their three-element air spaced objective lens design, made of high quality Schott BK-7 and FPL-53 ED glass, false color is completely eliminated, yielding exceptional contrast and sharpness. Knife-edge baffles in the optical tube increase contrast even further, and the included 2-element field corrector guarantees a flat field across the entire imaging plane. The Sky-Watcher exclusive Helinear Track focusing system provides a smooth, rock-solid focuser with zero image shift.


All Sky-Watcher USA Esprit refractors come with a 9 x 50 right angle finderscope, a 2" star diagonal, a 2-element thread-on field flattener, and a camera adapter as well as a D-style dovetail and padded case.


Sky-Watcher USA 100mm ED APO Triplet Esprit Refractor Specifications


  • Optical Design: Apochromatic Refractor


  • Aperture: 100 mm (3.94")


  • Focal Length: 550 mm


  • Focal Ratio: f/5.5


  • Highest Practical Power: 150X


  • Coatings: Fully multi-coated


  • Field Flattener: Thread-on doublet


  • Focuser: 2.7" linear power w/micro focus


  • Diagonal: 2" with dielectric coatings


  • Finderscope: 9x50 RA erect-image


  • Camera Adapter: M48 Canon EOS


  • Tube Ring: Includes D style dovetail bar


  • Dew Shield: Retractable
    Case: Aluminum foam-lined. 18.5" x 10.5" x 22.5"


  • Image Circle: 40mm


  • OTA Weight: 16 lb.


  • OTA Length: 24.5" Extended and 18.3" Retracted


  • Back focus: 68.819mm
Description
Description

What We Like About the Sky-Watcher 100mm Esprit Refractor


  • The 100mm air-spaced ED APO Triplet optics, made of FPL-53 ED and Schott BK-7 glass, and coupled with multi-layers of a high transmission coating, yield sharp, high contrast views with no extraneous color.

  • A thread-on doublet field flattener is included in the Sky-Watcher 100mm Esprit Refractor package, providing a flat field from edge-to-edge.

  • A good focuser is imperative when imaging, and the SW Esprit 100mm comes with a 2.7" linear power focuser with micro-focusing capabilities.

  • The dew shield on the Esprit 100 retracts, making the length 7" shorter for storage and travel.

  • A nice selection of accessories comes with this Esprit, including a 2" dielectric diagonal, a 9 x 50 erect-image finder, a Canon camera adapter, tube brings, and an 18.5" x 10.5" x 22.5" aluminum case. Add a mount (the rings have a Losmandy- style dovetail bar) and a few eyepieces, and you're good to go.

More About Sky-Watcher Esprit ED Triplet APO Refractors

Designed with the discerning astrophotographer in mind, Sky-Watcher USA’s top-of-the-line Esprit refractors deliver the kind of imaging performance one would expect from telescopes costing thousands of dollars more.

With their three-element air spaced objective lens design, made of high quality Schott BK-7 and FPL-53 ED glass, false color is completely eliminated, yielding exceptional contrast and sharpness. Knife-edge baffles in the optical tube increase contrast even further, and the included 2-element field corrector guarantees a flat field across the entire imaging plane. The Sky-Watcher exclusive Helinear Track focusing system provides a smooth, rock-solid focuser with zero image shift.

All Sky-Watcher USA Esprit refractors come with a 9 x 50 right angle finderscope, a 2" star diagonal, a 2-element thread-on field flattener, and a camera adapter as well as a D-style dovetail and padded case.

Sky-Watcher USA 100mm ED APO Triplet Esprit Refractor Specifications

  • Optical Design: Apochromatic Refractor

  • Aperture: 100 mm (3.94")

  • Focal Length: 550 mm

  • Focal Ratio: f/5.5

  • Highest Practical Power: 150X

  • Coatings: Fully multi-coated

  • Field Flattener: Thread-on doublet

  • Focuser: 2.7" linear power w/micro focus

  • Diagonal: 2" with dielectric coatings

  • Finderscope: 9x50 RA erect-image

  • Camera Adapter: M48 Canon EOS

  • Tube Ring: Includes D style dovetail bar

  • Dew Shield: Retractable Case: Aluminum foam-lined. 18.5" x 10.5" x 22.5"

  • Image Circle: 40mm

  • OTA Weight: 16 lb.

  • OTA Length: 24.5" Extended and 18.3" Retracted

  • Back focus: 68.819mm
Specifications
Specifications
Model Number S11410
Telescope Series SkyWatcher Esprit
Telescope Optical Design Refractor
Refractor Design Apochromat (APO)
Number of Refractor Elements 3
Telescope Aperture 3.93"
Telescope Focal Ratio f/5.5
Telescope Focal Length (mm) 500
Optical Coatings Fully multi-coated
Lowest Useful Magnification 14x
Highest Useful Magnification 236x
Light-Gathering Power Compared to Human Eye 204x
Diagonal Included? Yes - 2" Star Diagonal
Telescope Eyepiece(s) Included? No, Sold Separately
Finder Included? Yes - 9 x 50 Finder Included
Includes Telescope Case? Yes
Focuser Style Rack & Pinion
Focuser Size 3"
Focuser Speed Dual Speed
Telescope Mount Type No Mount - OTA Only
Telescope OTA Length - Extended (in.) 24.5
Telescope OTA Length - Retracted (in.) 18.3
Telescope OTA Width (in.) 5.75
Telescope OTA Weight with Accessories (lb.) 16
Telescope Warranty Period 1 year
What's in the Box?
What's in the Box?
  • Sky-Watcher Esprit 100 mm ED APO Triplet Refractor OTA

  • 9x50 RA erect-image finderscope

  • 3.0" focuser w/micro focus

  • 2" Diagonal with dielectric coatings

  • Thread-on field flattener

  • Canon camera adapter

  • Tube rings with CGE style dovetail bar

  • Aluminum foam lined case

Files
Files
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