Sky-Watcher Professional ESPRIT 3-Element ED apochromatic refractors are instruments of the highest quality with optical performance rivalling or exceeding similar telescopes of even the most famous high-end telescope brands.
The ESPRIT Super Apo Triplets are designed for the most demanding astro-imagers, for use with the optional M48 Field Flattener, but are also fine telescopes for visual observations. The premium, superbly-corrected optical systems deliver high-contrast images full of detail and zero detectable colour fringing, even on the brightest of objects. 

MAIN FEATURES:  

• 3-Element Objective Lens, Focal Length 550mm (one Ohara FPL-53 ED element) 
• 3” CNC Machined 11:1 Dual-Speed Linear Power Focuser  
• Zero detectable Colour Fringing even on Bright Objects  
• Metallic High-Transmission Lens Coatings
• Knife-edge Baffled Optical System  
• High-precision Mechanical Components  
• Aluminium OTA material (superior to plain carbon-fibre for this application)  
• Adjustable Dew Shield  
• OTA Weight 6.3kg (without accessories)  

3” DUAL-SPEED LINEAR POWER FOCUSER  

• 3” LPF with 2” and 1.25” eyepiece adaptors and indexed scale  
• Zero focus-shift during focusing  
• High Load Capacity  
• The smooth focus motion and 11:1 fine focus wheel allows precision adjustment and critical focusing of eyepieces & cameras

ACCESSORIES SUPPLIED:  

2” Dielectric Star Diagonal, 9x50 Right-Angled Erect Image Finderscope, Tube Rings, 75mm Dovetail Mounting Plate, Heavy Duty Foam-Lined Storage/Transportation Case with Wheels.