Esprit 70EDX Super APO Triplet

SKU: S11425   Triplet super-apochromatic design Three-element, air-spaced optical assembly virtually eliminates false color 70mm aperture, 455mm focal length, f/6.5 focal ratio FCD-100 glass Thread-on dew shield 2.7-inch linear rail rack-and-pinion with micro focus Aluminum optical tube with white, glossy finish Camera Angle Adjuster Sturdy carry handle attaches to tube rings Included accessories: Tube rings, V-style dovetail, M48 camera adapter, and padded hard case THE ELITE ASTROGRAPHS FOR THE REST OF US Designed with the discerning astrophotographer in mind, Sky-Watcher’s ALL NEW top-of-the-line Esprit EDX refractors deliver the kind of imaging performance one would expect from telescopes costing thousands of dollars more. With the Esprit’s three-element, air-spaced objective lens design, false color is virtually eliminated, yielding exceptional contrast and sharpness. Each element is fully multi-coated with Sky-Watcher’s proprietary Metallic High-Transmission Coatings™ (MHTC)™, producing a transmission rate that rivals any refractor on the market. In addition to superb optics, all Esprits feature exclusive dual-speed, Helinear track focusers, which provide smooth, rock-solid focusing with zero image shift. Using a Camera Angle Adjuster which is found on the end of the focuser drawtube and allows for orientation of your camera or eyepieces without needing to rotate the entire focuser. The Esprit EDX 100, 120, and 150 also come stock with rotatable focusers. All Sky-Watcher Esprit EDX refractors come with mounting rings, dovetail plate, camera adapter, and foam-lined hard case.  Unsurpassed Performance Esprit EDXs use three-element air-spaced optics to deliver images equal to scopes costing thousands of dollars more. Award-winning Optics All Sky-Watcher Esprit EDXs use laboratory matched lens assemblies, including extra-low dispersion elements, for unrivaled clarity and color correction. Exclusive Linear-track Focuser Sky-Watcher’s exclusive focuser design combines a rock-solid platform with zero image shift.   Specifications  SKU S11425 UPC 810098970709 Optical Specifications Optical Design (achro or apo) Super-Apochromatic Lens Coating (fully multi-coated)? Fully multi-coated Lens design (doublet, triplet or Quad) ED Triplet (Air Spaced) Optical Quality Diffraction limited (1/4 wave) Collimatable Cell Yes (Push/Pull Cell) Primary Aperture (mm) 70mm F/Ratio 7 Focal Length (mm) 490mm Optional Corrector Specifications Field Flattener or Reducer? Flattener Thread-On or Insertable Thread-On Corrector Thread size M65x1 female/M66x1 male Corrector Back Focus 66mm Corrector illuminated field 33mm Corrector adapter needed? Yes (Included with telescope) Corrector allow for 2" filters? Yes Optional Corrector/Reducer Specifications Mechanical Specifications Focuser Type Linear Rail Rack & Pinion Focuser Size 2.7" Focuser: Dual or Single Speed Dual speed (11:1 ratio) Focuser: Rotatable? Yes Camera Adjuster Yes Compression Ring Yes Drawtube thread size M74x1 Retractable dew shield? No (thread-on) OTA material Aluminum Optical Tube length Retracted/Extended (inches) 14.5" / 16.5" Dew Shield diameter (inches) 4.17" OTA Diameter (mm) 101mm Optical Tube weight with included accessories (pounds) 7 pounds Mounting Rings? Yes Dovetail type V-style Mounting foot Dovetail length 6" Accessories Eyepieces No Diagonal None Handle Yes Mounting Hardware Mounting Rings/Dovetail Flatter or Corrector Optional Additonal Accessories None Collimation eyepiece No Included finder None Manual No (PDF online) Case Yes Shipping Weight 23.5 Shipping Dimensions/Weight 22.5"x17.5"x14.5" Observational Info Dawes Limit 1.65 Rayleigh Limit 2 Limiting Magnitude 11.7 Minimum Magnification 10x Maximum Magnification 138x Light Gather (compared to next size down) 37% (compared to 60mm) Intended use Visual/Imaging