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Questions & Answers

FAQ

What does the three-element air-spaced objective lens design do?

The three-element air-spaced objective lens design in the Esprit 120mm ED Triplet APO Refractor effectively eliminates false color, ensuring exceptional contrast and sharpness in your astrophotography.

What is the purpose of the 2-element field corrector?

The 2-element field corrector guarantees a flat field across the entire imaging plane. This means your astrophotography will be free from distortions and aberrations, resulting in clearer and more detailed images.

What accessories come with the Esprit 120mm ED Triplet APO Refractor?

The Esprit 120mm ED Triplet APO Refractor comes with a 9 x 50 right-angle finderscope, a 2-inch Star diagonal, a 2-element field flattener, a camera adapter, a D-style dovetail, and a padded case.

Shopper : Why Did You Choose This?Robert V : Quality of other skywatcher products. Ready for a serious refractor scope.BERNARD C : I have been looking for a quality instrument primarily for astrophotography but also to provide enjoyment to friends and family when backyard viewing. I wanted a compromise for Deep Space Objects and planets. After reviews of the triple APO optics and build quality, I selected this. It has added benefits of being Canon 5D mk IV ready, completed with Adapter and a flattener. I am unlikely to ever buy another scope, so why not get the best within my budget.

Reviews about this item

Review Summary

2022-01-30T07:46:57

Rated 5 out of 5

Jaw dropping first light with cautionary warning about iOptron mounts.

First light was a view of the waxing gibbous moon. Wow! Wow! Wow! Best view of the moon I?ve ever had! What a great moment for first light! There was a thin rim of dark blue aberration very close to the edge of the field but with target centered it was not noticeable. Only when the moon drifted slightly off center with its edge leaving the FoV was this apparent. Next, my mount (iOptron CEM 120) went haywire and I haven?t had a look since. Mount is back in iOptron lab getting fixed now. I strongly caution AGAINST iOptron equipment. This is the second one I?ve had that went south. Support is poor, product more so. But not the SkyWatcher 150! I was soooo thrilled with the view. I can?t wait until my mount gets back!

MARK B.

2017-03-09T11:22:09

Rated 5 out of 5

Excellent telescope

Excellent telescope. Arrived in perfect condition. Views through it are amazing. I mounted it on an AZ-4 alt-az tripod using a 7" Losmandy V-plate, no problems. Can't wait to try it out in Costa Rica later this month! Highly recommended.

STEVEN H.

2017-02-04T08:44:22

Rated 5 out of 5

Y already have two Catadioptrics. The refractor is a good complement por astrophotography. Quality is very good

I am very happy with my new scope. Thanks for your prompt delivery

miguel p.

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Sky-Watcher Esprit Telescope Specifications

  • Optical Design

    ED Triplet

  • Focal Length

    840mm

  • Aperture

    120mm (4.7")

  • Focal Ratio

    F/7

  • Lens Glass

    Schott/Ohara ED

  • Lens Coatings

    Fully Multi-Coated

  • OTA Length

    Dew Shield Retracted: 27.4" Dew Shield Extended: 31.5"

  • OTA Outer Diameter

    6.875"

  • OTA Weight (with accessories)

    22 lbs.

  • Focuser

    3.4" Dual Speed R&P

  • Included Eyepieces

    None

  • Included Diagonal

    2" Dielectric

  • Included Finder

    8½50 Right Angle Correct Image

  • Mounting Accessories

    Rings/D-Rail

  • Corrector

    Yes, included flattener.

  • Image Circle (w/ Flattener)

    43mm

  • Dawes Limit

    0.97

  • Rayleigh Limit

    1.16

  • Limiting Magnitude

    12.9

  • UPC Code

    050234114202

23 Accessories for Sky-Watcher Esprit 120mm ED Triplet APO Refractor

  • All Accessories (23)
  • Eyepieces & Accessories (8)
  • Filters (1)
  • Tripods (2)
  • Mount Accessories (1)
  • Photography Adapters (4)
  • T-Mounts (7)

About Sky-Watcher Esprit Telescope

FEATURED REVIEWS

Excellent telescope

By STEVEN H.

Excellent telescope. Arrived in perfect condition. Views through it are amazing. I mounted it on an AZ-4 alt-az tripod using a 7" Losmandy V-plate, no problems. Can't wait to try it out in Costa Rica later this month! Highly recommended.

Jaw dropping first light with cautionary warning about iOptron mounts.

By MARK B.

First light was a view of the waxing gibbous moon. Wow! Wow! Wow! Best view of the moon I?ve ever had! What a great moment for first light! There was a thin rim of dark blue aberration very close to the edge of the field but with target centered it was not noticeable. Only when the moon drifted slightly off center with its edge leaving the FoV was this apparent. Next, my mount (iOptron CEM 120) went haywire and I haven?t had a look since. Mount is back in iOptron lab getting fixed now. I stro...

View full Review

After meticulous design and engineering, Sky-Watcher USA presents the Esprit 120mm ED Triplet APO Refractor, a high-quality, durable, and advanced telescope specifically crafted for the dedicated astrophotographer. This sophisticated refractor telescope outperforms its competition, delivering imaging performance comparable to telescopes with significantly higher price tags.

The Esprit 120mm ED Triplet APO Refractor boasts a three-element air-spaced objective lens design, which effectively eliminates false color. This innovative feature ensures exceptional contrast and sharpness, allowing you to capture the celestial wonders with unparalleled clarity and detail.

A unique feature of this telescope is the included 2-element field corrector. This guarantees a flat field across the entire imaging plane, ensuring that your astrophotography is free from distortions and aberrations. This makes it an ideal choice for capturing detailed images of planets, stars, and galaxies.

The Sky-Watcher exclusive Helinear Track focusing system is another standout feature of the Esprit 120mm ED Triplet APO Refractor. This advanced system provides a smooth, rock-solid focuser with zero image shift, ensuring that your celestial observations and photography remain sharp and steady.

The Esprit 120mm ED Triplet APO Refractor comes complete with a 9 x 50 right-angle finderscope, a 2-inch Star diagonal, a 2-element field flattener, a camera adapter, a D-style dovetail, and a padded case. This comprehensive package equips you with everything you need to embark on your astronomical exploration and capture the beauty of the night sky.

Sky-Watcher Esprit Telescope Features

  • Advanced three-element air-spaced objective lens design for true color and high contrast
  • 2-element field corrector ensures distortion-free, flat imaging plane
  • Exclusive Helinear Track focusing system for smooth, stable, and precise focusing
  • High aperture 120mm ED Triplet APO Refractor for superior light gathering
  • Complete accessory kit including 9 x 50 right-angle finderscope and 2-inch Star diagonal
  • Durable construction with padded case for secure transportation and storage

Key Features

  • Advanced three-element air-spaced objective lens design for true color and high contrast
  • 2-element field corrector ensures distortion-free, flat imaging plane
  • Exclusive Helinear Track focusing system for smooth, stable, and precise focusing
  • High aperture 120mm ED Triplet APO Refractor for superior light gathering
  • Complete accessory kit including 9 x 50 right-angle finderscope and 2-inch Star diagonal
  • Durable construction with padded case for secure transportation and storage

What's in the box:

  • 120mm apochromatic 3-element refractor
  • Thread-on field flattener
  • 3.4 " focuser w/micro focus
  • 2 " Diagonal with dielectric coatings
  • 8x50 RA erect-image finderscope
  • Canon camera adapter
  • Tube rings with CGE style dovetail bar
  • Aluminum foam lined case