Coronado ST 40/400 PST Personal Solar OTA

Description

Direct Hydrogen-alpha solar observation begins with the Coronado ST 40/400 PST Personal Solar OTA, a dedicated 40 mm solar refractor with a 400 mm focal length and listed f/10 optical ratio. Its single-etalon configuration is specified for a bandwidth below 0.7 Angstroms at 656.3 nm, while the integrated BF5 blocking filter, Sol Ranger alignment finder, 18 mm Kellner eyepiece, mechanical prism focus slider, and threaded mounting block create a compact solar observing system.

The supplied optical path is dedicated to solar use and should remain complete, unmodified, and correctly assembled during every session, with the BF5 blocking filter providing an essential part of the instrument configuration. Inspect the filter module, etalon housing, focus assembly, and mounting connection before use, never substitute unrelated filters or accessories, and stop observing immediately if damage, looseness, or unexpected optical behavior appears.

Key Features of Coronado ST 40/400 PST Personal Solar

This dedicated Hydrogen-alpha solar telescope combines a 40 mm aperture with a 400 mm focal length, below 0.7 Angstrom single-etalon bandwidth, 656.3 nm operating wavelength, integrated BF5 blocking filter, Sol Ranger finder, mechanical prism focusing, and compact threaded mounting hardware.

• 40 mm dedicated Hydrogen-alpha solar refractor
• 400 mm focal length with listed f/10 optical ratio
• Below 0.7 Angstrom single-etalon bandwidth
• 656.3 nm Hydrogen-alpha operating wavelength
• Integrated BF5 blocking filter module
• Mechanical prism focus slider
• Sol Ranger solar alignment finder
• 18 mm Kellner eyepiece and 1/4-20 mounting block

Real-Time Solar Chromosphere Observation

The supplied application focuses on real-time observation of solar chromospheric structures, prominences, filaments, and other Hydrogen-alpha features through the dedicated etalon and blocking-filter system, while safe use requires strict adherence to the manufacturer’s instructions, regular filter inspection, and immediate discontinuation if the optical path is damaged or altered.

Why Choose Coronado ST 40/400 PST Personal Solar

The single-etalon PST configuration is relevant for solar observers who need a compact dedicated Hydrogen-alpha telescope with an integrated BF5 blocking filter, mechanical focus control, Sol Ranger alignment, supplied eyepiece, and simple threaded mounting, provided the complete original solar optical path is preserved and inspected before every observation.

• Dedicated below 0.7 Angstrom Hydrogen-alpha solar configuration
• Integrated BF5 blocking filter and Sol Ranger finder
• Compact mount interface with eyepiece and mechanical focus slider included

Coronado 1-Year Limited Warranty

The supplied product information lists a 1-year limited warranty for this solar telescope, and the applicable warranty duration, filter coverage, optical-path requirements, registration process, and authorized service procedure should be confirmed before use because altered equipment, damaged filter components, or operation outside the supplied configuration may affect safety and warranty eligibility.