Esprit 80mm ED Triplet APO Refractor-0
Esprit 80mm ED Triplet APO Refractor-0Esprit 80mm ED Triplet APO Refractor-685Esprit 80mm ED Triplet APO Refractor-686Esprit 80mm ED Triplet APO Refractor-687Esprit 80mm ED Triplet APO Refractor-688Esprit 80mm ED Triplet APO Refractor-689Esprit 80mm ED Triplet APO Refractor-690Esprit 80mm ED Triplet APO Refractor-691Esprit 80mm ED Triplet APO Refractor-692

Esprit 80mm ED Triplet APO Refractor

$1,649.00

  • 80 mm apochromatic 3-element refractor
  • 400 mm (f/5)
  • Fully multi-coated
  • Thread-on field flattener
  • 2.7″ focuser w/micro focus
  • 2″ Diagonal with dielectric coatings
  • 8×50 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

Out of stock

SKU: S11400 Category:

Share this product

Product Description

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, 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 8 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.

Additional Information

Optical Design

ED Triplet

Primary Aperture (mm)

80mm (3″)

Focal Ratio

5

Focal Length (mm)

400mm

Glass Type

Schott/Ohara ED

Lens Coatings

Fully Multi-Coated

OTA Length

17.4″

OTA Outer Diameter

4.875″

OTA Weight (with accessories)

8.8 lbs.

Focuser

2.7″ Dual Speed R&P

Included Eyepieces

None

Included Diagonal

2″ Dielectric

Included Finder

8×50 Right Angle Correct Image

Includes Case

Yes

Mounting Accessories

V-Rail Foot

Corrector

Yes, included flattener.

Image Circle (w/ Flattener)

33mm

Other Included Items

Canon 48mm camera adapter with spacers

Dawes Limit

1.45

Rayleigh Limit

1.75

Limiting Magnitude

12