Sky Watcher Esprit 80mm ED Triplet Apo Refractor OTA # S11400

Our Price: $1,649.00
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Drop Shipped
Ships in 2-3 Business Days
Our Product ID: T-SW-S11400
Manufacturer SKU: S11400
Item Can Ship: To US Only
Sky Watcher Esprit 80mm ED Triplet Apo Refractor OTA # S11400

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  • Sky Watcher Esprit 80mm ED Triplet Apo Refractor OTA # S11400
  • Sky Watcher Esprit 80mm ED Triplet Apo Refractor OTA # S11400
  • Sky Watcher Esprit 80mm ED Triplet Apo Refractor OTA # S11400
  • Sky Watcher Esprit 80mm ED Triplet Apo Refractor OTA # S11400
  • Sky Watcher Esprit 80mm ED Triplet Apo Refractor OTA # S11400
  • Sky Watcher Esprit 80mm ED Triplet Apo Refractor OTA # S11400

Please note: Due to high shipping costs coupled with very low margins on this item, we may ship this product from our stock, or have the manufacturer drop-ship this to you. If this page states "In Stock" above, then it means that we have this item in stock in our warehouse, and you are assured of receiving it promptly from our stock or the manufacturer's.

Quick Overview

  • 80 mm apochromatic 3-element refractor
  • 400 mm focal length (f/5)
  • Fully multi-coated
  • Thread-on field flattener
  • 2.7" focuser w/micro focus
  • 2" Diagonal with dielectric coatings
  • 9x50 RA erect-image finderscope
  • Canon camera adapter
  • Tube rings with CG5 style dovetail bar
  • Aluminum foam lined case
  • 33mm image circle
  • OTA Weight: 8.8lbs.
  • OTA Length: 17.375" (fixed dew shield)
  • Back focus: 75mm

Product Details

Designed wtih 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, false color is completely eliminated, yielding exceptional contrast and sharpness. 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, 2-inch Star diagonal, 2-element field flattener, camera adapter, D-style dovetail and padded case. Everything you need to get out under the stars.

Specifications: 

  • Optical Design: Refractor
  • Field Flattener: Included, thread-on
  • Aperture (mm): 80 mm (3.15 in)
  • Focal Length: 400 mm
  • Focal Ratio: 5
  • Highest Useful Magnification: 120 x
  • Optical Coatings: Fully multi-coated
Additional Information:
  • OTA length: 17.4"
  • OTA width: 4.875"
  • OTA weight (with accessories): 8.8 lbs

 

Product carries full 2 year manufacturer factory limited warranty (within US only).

Manufacturer part number: S11400

Useful Resources

Manufacturer Sky Watcher
General Specs
Focuser 2.7" Dual Speed R&P
OTA Length 17.4"
OTA Outer Diameter 4.875"
OTA Weight (with accessories) 8.8 lb
Optical Specs
Mirror Coatings N/A
Lens Coatings Fully Multi-Coated
Glass Type BK7 (2)/FPL-53(ED)
True Aperture (mm) N/A
Primary Aperture (mm) 80
Primary Edge Thickness N/A
F/Ratio 5
Focal Length (mm) 400
Secondary Obstruction (by diameter) N/A
Secondary Obstruction by Area N/A
Included Accessories
Included Finder 8x50 RACI
Included Diagonal 2" Dialetric
Mounting Accessories V-Rail Foot
Included Eyepieces None
Magnification w/ Included Eyepieces N/A
Included Case Yes
Corrector Yes
Observational Specs.
Dawes Limit 1.45
Rayleigh Limit 1.75
Limiting Mag. 12
Minimum Magnification 11
Maximum Magnification 157
Light Gathering (compared to next size down) N/A

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