Esprit 150EDX Super APO Triplet

Triplet super-apochromatic design Three-element, air-spaced optical assembly virtually eliminates false color 150mm aperture, 1050mm focal length, f/7 focal ratio FPL-53 glass Retractable dew shield 3.4-inch linear rail rack-and-pinion with micro focus Aluminum optical tube with white, glossy finish Camera Angle Adjuster and rotatable focuser Included accessories: Tube rings, D-style dovetail, accessory rail, 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. SKU S11455 UPC 8100989707030 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) 150mm F/Ratio 7 Focal Length (mm) 1050mm Optional Corrector Specifications Field Flattener or Reducer? Flattener Thread-On or Insertable Thread-On Corrector Thread size M65x1 female/M62x1 male Corrector Back Focus 96mm Corrector illuminated field 43mm Corrector adapter needed? Yes (Included with telescope) Corrector allow for 2" filters? Yes Optional Corrector/Reducer Specifications Corrector Name Esprit 150ED 0.77x reducer/flattener Optional Corrector/Reducer SKU S20215 Reduction (reducer only) 0.77x Corrector - insertable or thread-on Thread on Corrector Thread size M74x1 female/48mm male Corrector Back Focus 90mm Corrector illuminated field 36mm F/Ratio with reducer installed 5.4 Focal Length with reducer installed 810mm Corrector adapter needed? No Corrector allow for 2" filters? Yes Mechanical Specifications Focuser Type Linear Rail Rack & Pinion Focuser Size 3.4" 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? Yes OTA material Aluminum Optical Tube length Retracted/Extended (inches) 36.9"/40.5" Dew Shield diameter (inches) 7.89" Optical Tube weight with included accessories (pounds) 34 pounds Mounting Rings? Yes Mounting Ring hole thread size(s) 1/4-20 (top threads) Dovetail type D-style Dovetail length 13" 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 Case Dimensions 42"x17"x13.5" Shipping Weight 77 Shipping Dimensions/Weight 49"x21"x17" Observational Info Dawes Limit 0.77 Rayleigh Limit 0.93 Limiting Magnitude 13.3 Minimum Magnification 21x Maximum Magnification 295x Light Gather (compared to next size down) 71% (compared to Esprit 120EDX) Intended use Visual/Imaging