Apochromatic Refractor Telescope Sky-Watcher Black Diamond 80ED f/7.5 Dual Speed

The apochromatic eyepiece Sky-Watcher Black Diamond 80ED f/7.5 is a perfect choice for amateur astronomers and astrophotographers looking for a high-performance instrument. Its renewed design and mechanical evolutions guarantee a high-quality observation and photography experience.

Characteristics:

• Optical formula: Apochromatic eyepiece
• Useful diameter: 80 mm
• Focal length: 600 mm
• Focal ratio: f/7.5
• Eyepiece holder: Crayford 50.8 mm Sky-Watcher Dual Speed (with 1:10 deceleration)
• Weight (with rings and dovetail bar): 2.5 kg
• Tube dimensions: 620 mm x 100 mm
• Two-element objective lens with FPL-53 glass (Schott) multi-layer treatment

Advantages:

• High-quality optics with ED FPL-53 glass for optimal correction of chromatic aberrations
• Metallic High-Transmission (MHC) coating for exceptional brightness and contrast
• Crayford Dual Speed eyepiece holder for precise and stable focusing
• Rugged aluminum design, without plastic parts, for increased durability
• Ideal for wide-field astrophotography thanks to its short focal ratio

Compatibility:

• Compatible with various astrophotography accessories and digital cameras

Tips and tricks:

• Use a corrector/reducer to optimize performance in wide-field astrophotography
• Perform a Ronchi test and a StarTest to check the optical quality before each observation session

The Sky-Watcher Black Diamond 80ED is the ideal instrument for capturing detailed and bright images of stars, planets, and nebulae.