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Sky-Watcher Esprit 100 ED APO Refractor - S11410

1 In Stock - Ships Today if Ordered by 2pm EDT! (Mon - Fri)

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.

SKU S11410
UPC 050234114103
Optical Info
Optical Design ED Triplet Refractor
Lens Coatings Fully Multi-Coated
Glass Type BK7 (2)/FPL-53(ED)
Primary Aperture (mm) 100
F/Ratio 5.5
Focal Length (mm) 550
Observational Info
Dawes Limit 1.16
Rayleigh Limit 1.4
Limiting Mag. 12.5
Minimum Magnification 14
Maximum Magnification 197
Light Gathering (compared to next size down) 56%
General Info
Focuser 3.4" Dual Speed R&P
OTA Length (Retract/Ext.) 18.3"/24.5"
OTA Outer Diameter 5.75"
OTA Weight (with accessories) 16
Included Finder 8x50 RACI
Included Diagonal 2" Dielectric
Mounting Accessories Rings/D-Rail
Included Eyepieces None
Included Case Yes
Corrector Yes
Shipping Weights & Dimensions

Questions & Answers

  • This scope come with a flattener/reducer correct? what is the reducer power? and can you remove it to image with out it?

    The scope comes with a flattener without any reduction, so there is no change to the focal length of the scope.  The flattenen could be removed and spacers added instead, but you would get distortions on the edges of the image which would be unsatisfactory to most imagers.