Features:

APO refractors have a doublet field flattener to get a flat field and minimize aberration and distortion. Their wide 48mm opener ensures a larger and clearer aperture and also extremely minimized halation. Connect the triplet and doublet field flattener with a high precision thin thread to keep the optical axis perpendicular to the image.

• Premium optical materials 
• Short focal length and full frame corrected focal plane 
•  Excellent field flatness 
•  Precision linear power focuser is standard 
•  Metallic high-transmission lens coatings 
•  Light-baffled optical systems 
•  Telescope tube attachment hardware
•  Full-frame Corrected Focal Plane
•  Zero detectable Colour Fringing even on Bright Objects
•  Knife-edge Baffled Optical System

Specifications:

• Optical Design: Apochromatic Refractor 
• Optical Diameter: 120mm 
• Focal Length: 840mm 
• F/Ratio: F/7 
• Highest Practical Power: 240x 
• Faintest Steller Magnitude: 12.5 
• Finder Scope: 8×50 Right Angled Erect Image 
• Focuser Diameter: 3″ Linear Power Focuser 
• Diagnol: 2″ 90 deg. Dielectric Diagonal with 1.25″ adapter 
• Eyepieces: LET 2″-28mm 
• Tube Weight: 9.61 kg 
• Tube Dimensions: 12.5cmx75cm 
• Shipping Weight: 26 kg 
• Shipping Dimensions: 122x46x48 cm3