Esprit 150 ED APO Refractor
Esprit 150 ED APO Refractor
Sky-Watcher Esprit 150mm ED Triplet APO Refractor Telescope
Overview:
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.
Optical Info | |
Optical Design: | ED Triplet Refractor |
Lens Coatings: | Fully Multi-Coated |
Glass Type: | BK7 (2)/FPL-53(ED) |
Primary Aperture (mm): | 150 |
F/Ratio: | 7 |
Focal Length (mm): | 1040 |
Observational Info | |
Dawes Limit: | 0.77 |
Rayleigh Limit: | 0.93 |
Limiting Mag.: | 13.4 |
Minimum Magnification: | 21x |
Maximum Magnification: | 295x |
Light Gathering: | 56% (compared to next size down) |
General Info | |
Focuser: | 3.4" Dual Speed R&P |
OTA Length (Retract/Ext.): | 36.9"/40.5" |
OTA Outer Diameter: | 7.9" |
OTA Weight (with accessories): | 32 |
Accessories | |
Included Finder: | 8x50 RACI |
Included Diagonal: | 2" Dielectric |
Mounting Accessories | Rings/D-Rail |
Included Eyepieces: | None |
Included Case: | Yes |
Corrector: | Yes |
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