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

Our #: T-SW-S11400
Mfg #: S11400
Sale Price: $1,699.00 Our Price: $2,230.00
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In Stock (4 Available)
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Please note: Due to high shipping costs and low profit margins on this item, we might ship this from our stock or have the manufacturer drop ship this item to you.

  • If this page lists the item as "In Stock", your order will ship within 2 days either from us or from the manufacturer.
  • If this page lists the item as "Back Order" or "Drop Ship", it will be drop shipped from the manufacturer subject to their availability. In case of any delays for back-ordered or drop-shipped items, we will contact you promptly and update you on its status. Or you can contact us first and we can get you a shipping estimate before you order.

Quick Overview

  • Triplet super-apochromatic design
  • Three-element, air-spaced optical assembly virtually eliminates false color
  • 80mm aperture, 400mm focal length, f/5 focal ratio
  • 2.7-inch dual-speed rack-and-pinion, Helinear track focuser
  • Rolled steel optical tube with white, glossy finish
  • Included accessories: field flattener, V-style mounting foot, 8x50 right-angle finderscope, M48 camera adapter, 2-inch dielectric diagonal, and padded hard case

Product Details

Designed with the discerning astrophotographer in mind, Sky-Watcher’s top-of-the-line Esprit 80ED Triplet Super Apo refractor # S11400 delivers the kind of imaging performance one would expect from telescopes costing thousands of dollars more. With the Esprit’s three-element, air spaced objective lens design, false color is virtually eliminated, yielding exceptional contrast and sharpness. Each element is fully multi-coated with Sky-Watcher’s proprietary Metallic High-Transmission Coatings™ (MHTC)™, producing a transmission rate that rivals any refractor on the market.

In addition to superb optics, all Esprits feature exclusive dual-speed, Helinear track focusers, which provide smooth, rock-solid focusing with zero image shift. Using a captain’s wheel design all focusers can be rotated, giving astrophotographers flexibility when framing their image.

As is customary, Sky-Watcher supplies everything you need to get out under the stars, including a 2-element field corrector, which guarantees a flat field across the entire imaging plane. All Esprit refractors also come with an 8x50 right angle finderscope, 2-inch star diagonal, M48 camera adapter, mounting hardware, and padded case.

Specifications:

Optical Info:

  • Optical Design: ED Triplet Refractor
  • Lens Coatings: Fully Multi-Coated
  • Glass Type: BK7 (2)/FPL-53(ED)
  • Primary Aperture (mm): 80
  • F/Ratio: 5
  • Focal Length (mm): 400

Observational Info:

  • Dawes Limit: 1.45
  • Rayleigh Limit: 1.75
  • Limiting Mag.: 12
  • Minimum Magnification: 11
  • Maximum Magnification: 157

General Info:

  • Focuser: 2.7" Dual Speed R&P
  • OTA Length (Retract/Ext.): 17.4"
  • OTA Outer Diameter: 4.875"
  • OTA Weight (with accessories): 8.8

Accessories:

  • Included Finder: 8x50 RACI
  • Included Diagonal: 2" Dielectric
  • Mounting Accessories: V-Rail Foot
  • Included Eyepieces: None
  • Included Case: Yes
  • Corrector: Yes

Other Information

  • Country of Manufacture: China
Links & Downloads
Product Guides / Manuals
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