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- 120 mm apochromatic 3-element refractor
- 840 mm (f/7)
- Fully multi-coated
- Thread-on field flattener
- 3.0″ focuser w/micro focus
- 2″ Diagonal with dielectric coatings
- 9×50 RA erect-image finder scope
- Canon camera adapter
- Tube rings with CGE style dovetail bar
- Aluminum foam lined case
- 43mm image circle
- OTA Weight: 22lbs.
- OTA Length: 31.5″ Extended and 27.375″ Retracted
- Back focus: 75mm
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 Design||ED Triplet Refractor|
|Lens Coatings||Fully Multi-Coated|
|Glass Type||BK7 (2)/FPL-53(ED)|
|Primary Aperture (mm)||120|
|Focal Length (mm)||840|
|Light Gathering (compared to next size down)||44%|
|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 lbs|
|Included Finder||8x50 RACI|
|Included Diagonal||2" Dielectric|