Explore Scientific Dobson N 305/1525 Ultra Light II

Description

Large-aperture visual astronomy begins with the Explore Scientific Dobson N 305/1525 Ultra Light II, a 12-inch parabolic Newtonian Dobsonian with a 1525 mm focal length and listed f/5 optical ratio. Its aluminum truss structure separates into manageable components, while the 2-inch HEX focuser with 10:1 reduction, large altitude arcs, GRP bearings, cooling fans, red dot finder, collimation support, mirror box, upper cage, and rocker base create a field-deployable visual telescope system.

The supplied configuration is intended for manual observation of galaxies, nebulae, star clusters, planets, and lunar features, with the open truss design allowing the optical structure to be separated for transport and storage. Before observing, the truss assembly requires correct setup, collimation, balance, and thermal preparation, while the cooling fans can be used to support airflow across the primary mirror during the preparation period.

Key Features of Explore Scientific Dobson N 305/1525 Ultra Light II

This 12-inch Dobsonian combines a 304.8 mm parabolic mirror with a 1525 mm focal length, f/5 optical ratio, aluminum truss frame, 2-inch HEX focuser, 10:1 reduction, large altitude arcs, GRP bearings, cooling fans, rocker base, red dot finder, and collimation support.

• 304.8 mm parabolic Newtonian reflector
• 1525 mm focal length with listed f/5 optical ratio
• All-aluminum truss tube frame
• 2-inch HEX focuser with 10:1 reduction
• 93% reflective aluminum and SiO2 mirror coating
• Large powder-coated altitude arcs
• GRP radial bearings and manual rocker base
• Cooling fans, red dot finder, truss rods, and collimation tool

Manual Deep-Sky Field Observation

The supplied application focuses on manual deep-sky observation and high-magnification planetary viewing, with the 12-inch aperture supporting the listed galaxy, nebula, cluster, lunar, and planetary uses while the truss architecture allows the telescope to be transported in separated sections and assembled at a suitable observing location.

Why Choose Explore Scientific Dobson N 305/1525 Ultra Light II

The Ultra Light 12-inch configuration is relevant when substantial aperture, manual Dobsonian control, a portable truss structure, tool-assisted collimation, active primary-mirror cooling, a 2-inch precision focuser, and large altitude bearings are more important than computerized tracking or a permanently assembled telescope.

• 304.8 mm aperture for the listed deep-sky application
• Truss structure separates into transportable components
• HEX focuser, cooling fans, finder, bearings, rocker base, and collimation support included

Explore Scientific 2-Year Limited Warranty

The supplied product information lists a 2-year limited warranty for this Dobsonian telescope, and the applicable warranty terms, optical coverage, truss hardware coverage, focuser coverage, cooling-fan coverage, registration requirements, and authorized service process should be confirmed before purchase because transport, assembly, and included-accessory conditions can affect support requirements.