Geoptik Dobson N 404/1815 DOB Nadirus 16″

Description

Large-aperture modular observation is the focus of the Geoptik Dobson N 404/1815 DOB Nadirus 16″, a 404 mm Dobsonian structure with a 1815 mm focal length and listed f/4.5 configuration. Its laminated beech wood and carbon-fiber truss construction includes an 18-point flotation cell, precision secondary holder, curved altitude bearings, Teflon movement surfaces, rocker base, and structural components designed for a large Newtonian optical assembly.

The supplied data identifies this Nadirus configuration as requiring separate primary optics, while the manufacturer also offers complete telescope and mechanical-kit versions within the same product family, so the exact package contents should be confirmed before purchase. Assembly requires careful optical installation, collimation, balancing, truss setup, light shielding, and storage planning because the largest structural component is substantially heavier than the individual truss elements.

Key Features of Geoptik Dobson N 404/1815 DOB Nadirus 16″

This large Dobsonian structure combines a 404 mm target aperture with an 1815 mm focal length, f/4.5 configuration, laminated beech wood base, carbon-fiber truss rods, 18-point flotation support, curved altitude bearings, Teflon movement, and compatibility with standard 2-inch focuser or Feather Touch assemblies.

• 404 mm Newtonian Dobsonian configuration
• 1815 mm focal length with listed f/4.5 ratio
• Laminated beech wood and carbon-fiber truss structure
• 18-point primary flotation support
• Curved altitude bearings with Teflon movement
• Precision secondary holder
• Rocker box and structural truss assembly
• Optical components depend on the selected product variant

Modular Large-Aperture Deep-Sky Observation

The supplied application focuses on large-aperture visual observation of galaxies, nebulae, clusters, planets, and lunar features, with the 404 mm structure providing the listed target configuration while the final optical performance, resolving power, obstruction, focusing, and observing behavior depend on the primary and secondary mirrors installed into the mechanical assembly.

Why Choose Geoptik Dobson N 404/1815 DOB Nadirus 16″

The Nadirus 16 structure is relevant when a large custom Dobsonian project needs a strong yet transportable wood-and-truss architecture, 18-point flotation support, curved altitude bearings, Teflon movement, and a rocker base, while separate optics and focuser selection allows the final system to be matched to a specific observing plan.

• Large modular structure for a custom 404 mm Dobsonian
• 18-point flotation cell and curved altitude bearings
• Primary optics, focuser, finder, shroud, and counterweight require separate confirmation

Geoptik 2-Year Limited Warranty

The supplied product information lists a 2-year limited warranty for this Dobsonian structure, and the applicable coverage for wood components, carbon-fiber trusses, flotation hardware, rocker base, and any separately sourced optics should be confirmed with the authorized seller before assembly or field deployment.