The iOptron 300mm (approximately 11.8") Newton optical tube with a fast focal ratio of f/4 is perfect for imaging deep sky objects with a digital reflex camera or a dedicated astronomy camera. The 3.25" Crayford-style focuser, double hinged mounting rings, 8x50 straight finder, and 14" Losmandy-style dovetail plate make it ready to be attached to your mount and used immediately.

Features:

• 2" dual-speed Crayford focuser with 1.5" adapter, iEAF compatible
• Optical glass BK7 primary mirror with a quartz protective coating
• 8x50 mm finder
• 14" Losmandy-style dovetail plate with full circumference solid mounting rings
• Front cover

The package includes:

• 12" fast Newton optical tube
• 12" optical tube assembly
• 8x50 mm straight finder with bracket
• Tube mounting rings
• 14" Losmandy-style dovetail rail
• 2" diameter, 35 mm length extension tube
• Front dust cover

Technical specifications:

• Optical design: Newton
• Clear aperture: 300 mm
• Focal length: 1200 mm
• Focal ratio: f/4
• Focus: Dual-speed Crayford
• Optical tube length: 115.5 cm
• Outer diameter: 35.6 cm
• Optical tube weight: 21.8 kg
• Extension tube: 2" diameter, 35 mm length