• -$1,450.00

(USED) Esprit 120mm ED Triplet APO Refractor

$4,450.00
$3,000.00 Save $1,450.00

A bargain in high end optics (SAVE 1450.00)!

This Esprit 120mm super apochromat has Incredibly fine optics up there with the very best and it is tailored for astrophotography! 

*Mount not included

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 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.

Optical Info
SKU S11420
UPC 050234114202
Optical Design ED Triplet Refractor
Lens Coatings Fully Multi-Coated
Glass Type BK7 (2)/FPL-53(ED)
Primary Aperture (mm) 120
F/Ratio 7
Focal Length (mm) 840
Observational Info
Dawes Limit 0.97
Rayleigh Limit 1.16
Limiting Mag. 12.9
Minimum Magnification 17
Maximum Magnification 236
Light Gathering (compared to next size down) 44%
General Info
Focuser 3.4" Dual Speed R&P
OTA Length (Retract/Ext.) 27.4"/31.5"
OTA Outer Diameter 6.875"
OTA Weight (with accessories) 22
Accessories
Included Finder 8x50 RACI
Included Diagonal 2" Dielectric
Mounting Accessories Rings/D-Rail
Included Eyepieces None
Included Case Yes
Corrector Yes