The Sky-Watcher FlexTube 355mm f/4.5 Dobsonian telescope offers an exceptional observing experience with its very large diameter, ideal for deep sky exploration and planet observation. Thanks to its FlexTube folding design, it avoids complete disassembly and collimation while remaining transportable by two people or easily disassemblable for transport.

Features:

• Optical Formula: Newton
• Useful Diameter: 355mm
• Focal Length: 1650mm
• F/D Ratio: 4.5
• Secondary Mirror: 93mm
• Resolving Power: 0.33 arc seconds
• Clarity: 3501x
• Recommended Maximum Magnification: 450x
• Focuser: Crayford 50.8/31.75 Sky-Watcher with microfocuser (Dual Speed 1:10)
• Optical Tube Length (folded/unfolded): 970mm/1510mm
• Weight of Optical Tube: 24kg
• Mount: Dobsonian Altazimuth - Motorization not compatible

Advantages:

• Very large diameter for detailed deep sky observations
• Folding FlexTube design for easy transport and storage
• Maintains collimation even after folding and unfolding
• Parabolic primary mirror in Pyrex for better image quality and reduced thermal effects
• Pivoting system with clamping handle for easy and precise use
• Crayford focuser with microfocuser for precise adjustments
• Suitable for use by two people or for mounting in an observatory

Included:

• 1 Sky-Watcher 355mm f/4.5 Newton FlexTube optical tube
• 1 Dobsonian altazimuth mount
• 2 eyepieces 31.75mm: Super 10mm and Super 25mm
• 1 straight finder 9x50
• User manual in French