Please note: Due to high shipping costs coupled with very low margins on this item, we may ship this product from our stock, or have the manufacturer drop-ship this to you. If this page states "In Stock" above, then it means that we have this item in stock in our warehouse, and you are assured of receiving it promptly from our stock or the manufacturer's.
- 80 mm apochromatic 3-element refractor
- 400 mm focal length (f/5)
- Fully multi-coated
- Thread-on field flattener
- 2.7" focuser w/micro focus
- 2" Diagonal with dielectric coatings
- 9x50 RA erect-image finderscope
- Canon camera adapter
- Tube rings with CG5 style dovetail bar
- Aluminum foam lined case
- 33mm image circle
- OTA Weight: 8.8lbs.
- OTA Length: 17.375" (fixed dew shield)
- 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 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.
- Optical Design: Refractor
- Field Flattener: Included, thread-on
- Aperture (mm): 80 mm (3.15 in)
- Focal Length: 400 mm
- Focal Ratio: 5
- Highest Useful Magnification: 120 x
- Optical Coatings: Fully multi-coated
- OTA length: 17.4"
- OTA width: 4.875"
- OTA weight (with accessories): 8.8 lbs
Product carries full 2 year manufacturer factory limited warranty (within US only).
Manufacturer part number: S11400
|Focuser||2.7" Dual Speed R&P|
|OTA Outer Diameter||4.875"|
|OTA Weight (with accessories)||8.8 lb
|Lens Coatings||Fully Multi-Coated|
|Glass Type||BK7 (2)/FPL-53(ED)|
|True Aperture (mm)||N/A|
|Primary Aperture (mm)||80|
|Primary Edge Thickness||N/A|
|Focal Length (mm)||400|
|Secondary Obstruction (by diameter)||N/A|
|Secondary Obstruction by Area||N/A|
|Included Finder||8x50 RACI|
|Included Diagonal||2" Dialetric|
|Mounting Accessories||V-Rail Foot|
|Magnification w/ Included Eyepieces||N/A|
|Light Gathering (compared to next size down)||N/A|