Esprit 150mm ED Triplet APO Refractor-0
Esprit 150mm ED Triplet APO Refractor-0Esprit 150mm ED Triplet APO Refractor-663Esprit 150mm ED Triplet APO Refractor-664Esprit 150mm ED Triplet APO Refractor-665Esprit 150mm ED Triplet APO Refractor-666Esprit 150mm ED Triplet APO Refractor-667Esprit 150mm ED Triplet APO Refractor-668Esprit 150mm ED Triplet APO Refractor-669

Esprit 150mm ED Triplet APO Refractor

$6,399.00

  • 150 mm apochromatic 3-element refractor
  • 1050 mm (f/7)
  • Fully multi-coated
  • Thread-on field flattener
  • 3.0″ focuser w/micro focus
  • 2″ Diagonal with dielectric coatings
  • 9×50 RA erect-image finderscope
  • Canon camera adapter
  • Tube rings with CGE style dovetail bar
  • Aluminum foam lined case
  • 43mm image circle
  • OTA Weight: 32lbs.
  • OTA Length: 40.5″ Extended and 36.875″ Retracted
  • Back focus: 100mm
SKU: S11430 Category:

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Product Description

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.

Additional Information

Optical Design

ED Triplet

Primary Aperture (mm)

150mm (6″)

Focal Ratio

7

Focal Length (mm)

1050mm

Glass Type

Schott/Ohara ED

Lens Coatings

Fully Multi-Coated

OTA Length

Dew Shield Retracted: 36.9″ Dew Shield Extended: 40.5″

OTA Outer Diameter

7.9″

OTA Weight (with accessories)

32 lbs.

Focuser

3.4″ Dual Speed R&P

Included Eyepieces

None

Included Diagonal

2″ Dielectric

Included Finder

8×50 Right Angle Correct Image

Includes Case

Yes

Mounting Accessories

Rings/D-Rail

Corrector

Yes, included field flattener.

Image Circle (w/ Flattener)

43mm

Other Included Items

Canon 48mm camera adapter with spacers

Dawes Limit

0.77

Rayleigh Limit

0.93

Limiting Magnitude

13.4