Sky-Watcher 100mm Esprit ED Triplet APO Refractor

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Sky-Watcher 100mm Esprit ED Triplet APO Refractor
$2,499.00
Item # SW-S11410
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  • This 4" ED Triplet APO Refractor was designed by Sky-Watcher with astro-imagers in mind! The included two element corrector produces a flat field across the entire imaging plane, and the 100mm f/5.5 air-spaced objective lens with FMC yields a sharp, contrasty image with no false color.
  • The 2.7" rack & pinion focuser on this quality Esprit telescope is as solid as they come, and sports micro focusing abilities. This focuser can handle a multi-part imaging system just fine, with no image shift!
  • Accessories for the Sky-Watcher 100mm ED Triplet APO Refractor include a 2" dielectric diagonal, a 9X50 erect-image finder, tube rings with a D style dovetail, and even an aluminum case with interior foam lining.
Description

Details

Sky-Watcher Esprit ED APO Triplet Refractors...



The Sky-Watcher Esprit line of high-quality ED Triplet APO refractors will perform flawlessly whether you enjoy it as a visual instrument or use it as a giant lens to image the Universe with one of today's amazing CCD cameras. The designers of this telescope line concentrated on the desires and requirements of the avid astro-imager, from a three-element apochromatic objective with included thread-on field flattener to the beefy oversized micro-focuser.

The air-spaced ED APO optics are fully multi-coated for extra clarity, contrast, and protection, and the two-element corrector, which comes standard with the Sky-Watcher Esprit, will ensure a flat field across the entire focal plane. This system produces a 40mm image circle, and you have about 69mm of back focus for plenty of imaging accessories. The dew shield, when extended, will protect the optics from dew and help increase contrast by blocking stray light that might otherwise strike the glass. However, the shield is fully retractable when necessary in order to shorten your OTA for storage and travel

The Helinear Track Focusing System, a Sky-Watcher exclusive, is a rock-solid 2.7" rack & pinion focuser that will perform smoothly, without image shift, due to the extra support rail on the top of the drawtube. The micro focuser allows you to make course and fine adjustments to focus, and the knobs are easy to turn, even with cold hands or with gloves on. A thread-on step down ring takes the opening down for 2" accessories, and a 2" to 1.25" adapter is included in the package.

Accessories are a big part of any telescope system, and Sky-Watcher wants to make sure that you start out right. Included with every Esprit refractor is a 2" dielectric diagonal, a 9 x 50 RA erect-image finderscope and bracket, a Canon camera adapter, tube rings with a CGE ("D" style) dovetail bar, and an aluminum foam-lined case.

Additional Information

Additional Information

SKU SW-S11410
UPC Code 50234114103
Manufacturer Sky-Watcher
Telescope Series Sky-Watcher Esprit
Optical Design Refractor - Apochromatic
Mount Type None - Optical Tube Only
Telescope Aperture 3.94"
Telescope Focal Length 500mm
Telescope Focal Ratio f/5
Highest Useful Magnification 236x
Limiting Stellar Magnitude 12.5
Optical Coatings Fully Multi-Coated
Dew Shield Included? Yes
Length of Optical Tube 24.5" Extended, 17.3" Retracted
Optical Tube Weight 16.3 lb.
Tube Color or Finish Gloss White
Finder Included 9 x 50 Optical Finder
Alignment Procedure N/A
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Included Items

Included Items

  • Sky-Watcher 4" f/5.5 ED Triplet APO Refractor
  • Thread-on Field Flattener
  • 2.7" Rack & Pinion Microfocuser
  • 2.7" to 2" Thread on Adapter
  • 2" to 1.25" Adapter
  • 2" Diagonal
  • Canon Camera Adapter
  • Tube Rings with "D" Series Dovetail Bar
  • Aluminum Case
Questions & Answers

Product Questions

Is this airline carry-on worthy? Including the case and everything?
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