Sky-Watcher Esprit 100mm ED APO Triplet Refractor Optical Tube

Item #CELE630-1

  • Your Price:
  • $2,499.00
  • + FREE Shipping
  • 100mm Apochromatic 3-element refractor
  • 550mm (f/5.5) focal length
  • Thread-on field flattener
  • 2.7" focuser w/micro focus
  • 2" diagonal with dielectric coatings
Questions? Let our experts help!
  • 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.


    • 100 mm apochromatic 3-element refractor
    • 550 mm (f/5.5)
    • Fully multi-coated
    • Thread-on field flattener
    • 2.7" focuser w/micro focus
    • Back Focus - 69.8mm
    • Image Circle - 40mm
    • Lens Glass - FPL-53 ED and Schott Glass
    • Focuser Travel - 112mm
    • D-Style Dovetail
    • 2" Diagonal with dielectric coatings
    • 9x50 RA erect-image finderscope
    • Canon camera adapter
    • Tube rings with CGE style dovetail bar
    • Aluminum foam lined case
    • Weight 16.3 lbs.
    • Length 24.5/18.3 inches

    Supplier SKU


    Shipping Restrictions

    Available for shipment to the USA and Canada only.

  • Dimensions & Specifications



    Objective Lens Size Code


    Recommended Usage

    Viewing the Planets

    User Level

    For the Expert





    Focal Ratio


    Good for Astrophotography




    Optical Design


    Telescopes Series

    Sky-Watcher Esprit Refractor Telescopes


    2 Year

  • Product Guarantee

    We stand behind all the products we sell, and your satisfaction is our top priority. If you're not satisfied with the quality of your purchase, simply send the item back to us in its original packaging within 30 days of its delivery.

    Manufacturer Warranty

    Default manufacturer warranty.

    Return & Exchange Policy

    At our site, returns are easy! You may return new, unused, and resalable items for a refund or exchange. Simply ensure that the item is returned in its original product packaging within 30 days of delivery.

Ask The Experts

Have questions about an item or need advice on selecting the right astronomy gear? Our team of telescope experts is here to help! Avid amateur astronomers themselves, they've tested products in the field and can provide personalized recommendations.

You can reach our Customer Support line at 1-800-303-5873. We're open 8 a.m. to 8 p.m. Central Time, Monday through Friday and 9 a.m. to 4 p.m. on Saturday.

After hours? Drop us an email at We'll get back to you as soon as possible, usually within 1 business day.