The iOptron 150mm (approximately 6") Newton optical tube with a fast focal ratio of f/4 is perfect for imaging deep sky objects with a digital SLR or a dedicated astronomy camera. The 2" Crayford-type focuser, double hinge mounting rings, 8x50 right-angle finder, and 8.7" Vixen-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, compatible with iEAF
• BK7 optical glass primary mirror with a quartz protective coating
• 8x50 mm finder
• 8.7" Vixen-style dovetail plate with solid full circumference mounting rings
• Front dust cap

The package includes:

• 150mm fast Newton optical tube
• 6" optical tube assembly
• 8x50 mm right-angle finder with bracket
• Tube mounting rings
• 8.7" Vixen-style dovetail rail
• 2" diameter extension tube, 35 mm length
• Front dust cover

Technical specifications:

• Optical design: Newton
• Clear aperture: 150 mm
• Focal length: 600 mm
• Focal ratio: f/4
• Focusing: Dual-speed Crayford
• Optical tube length: 55.9 cm
• Outer diameter: 17.8 cm
• Optical tube weight: 4.37 kg
• Extension tube: 5 cm (2") diameter, 35 mm length