Newton 300/1500 Black Diamond Dual Speed tubo ottico Sky-Watcher

Discover the universe with the Newtonian parabolic optical tube 300mm f/5 Black Diamond Dual Speed by Sky-Watcher. This powerful telescope, the largest in Sky-Watcher's Newton range, is designed for astronomy enthusiasts who want to observe and photograph deep sky objects with exceptional precision. With its 300mm primary mirror, it collects 44% more light than a 250mm telescope, offering richly detailed observations.

Features:

• Aperture: 300mm (parabolic primary mirror in Pyrex)
• Focal length: 1500mm
• Focal ratio: f/5
• Eyepiece holder: Crayford 50.8/31.75mm with 1:10 dual-speed focuser (Dual Speed)
• Secondary mirror supports: 4 branches of 0.5mm
• Included achromatic right-angle finder 9x50
• Included LET 28mm eyepiece (50.8mm thread)
• Losmandy-style dovetail mounting bars
• Dimensions: 35.5cm (diameter) x 145cm (length)
• Weight: 22kg
• Robust metal construction

Advantages:

• Collects 44% more light than a 250mm telescope for detailed deep sky observations
• Parabolic primary mirror to eliminate spherical aberrations and offer sharp images
Precise focuser thanks to the Crayford Dual Speed eyepiece holder, essential for astrophotography
• Thin secondary mirror supports to minimize diffraction and improve contrast
• Compatible with heavy accessories like reflex cameras for imaging

Compatibility:

• Compatible with mounts equipped with a Losmandy-style dovetail bar
• 31.75mm adapter included for using a wide range of eyepieces

Usage tips:

• For optimal astrophotography results, the use of a coma corrector is recommended
• Let the telescope acclimate to ambient temperature for optimal image quality

Supplied items:

• Newton 300mm f/5 optical tube
• Crayford 50.8mm eyepiece holder with 31.75mm adapter
• Achromatic right-angle finder 9x50
• LET 28mm eyepiece (50.8mm thread)
• Losmandy-style dovetail mounting bars
• Piggyback camera mount