Coronado ST 40/400 PST Personal Solar 0.5A OTA

Description

Hydrogen-alpha solar observation is the central purpose of the Coronado ST 40/400 PST Personal Solar 0.5A OTA, a dedicated 40 mm solar refractor with a 400 mm focal length and listed f/10 optical ratio. Its double-stacked configuration uses an internal etalon system with a supplied BF5 blocking filter module, Sol Ranger alignment finder, 18 mm Kellner eyepiece, mechanical prism focus slider, and integrated 1/4-20 mounting block for compatible support equipment.

This dedicated solar instrument is intended for Hydrogen-alpha observation around 656.3 nm, with the supplied data listing a bandwidth below 0.5 Angstroms in its double-stacked configuration. Use only the complete solar optical path and supplied blocking-filter system exactly as designed, inspect all filter and optical components before every session, and discontinue use immediately if any component appears damaged, loose, altered, or incomplete.

Key Features of Coronado ST 40/400 PST Personal Solar 0.5A OTA

This dedicated Hydrogen-alpha solar refractor combines a 40 mm aperture with a 400 mm focal length, double-stacked etalon configuration, integrated BF5 blocking filter, Sol Ranger alignment finder, mechanical prism focusing, solar-rejecting coatings, compact aluminum construction, and a standard threaded mounting block.

• 40 mm dedicated Hydrogen-alpha solar refractor
• 400 mm focal length with listed f/10 optical ratio
• Below 0.5 Angstrom double-stacked 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

Dedicated Chromospheric Observation

The supplied application focuses on observing Hydrogen-alpha solar structures such as chromospheric features, prominences, filaments, and other visible solar activity through the dedicated filtered optical system, while all solar use must follow the manufacturer’s instructions and must stop immediately if the blocking filter, etalon, housing, or optical path shows any sign of damage or modification.

Why Choose Coronado ST 40/400 PST Personal Solar 0.5A OTA

The double-stacked PST configuration is relevant for solar observers who need a dedicated narrowband Hydrogen-alpha instrument with an integrated BF5 blocking filter, compact mounting interface, mechanical tuning, Sol Ranger alignment, and a supplied eyepiece, while safe operation depends on preserving the original optical path and completing a careful pre-observation inspection every time.

• Double-stacked below 0.5 Angstrom Hydrogen-alpha configuration
• Integrated BF5 blocking filter and Sol Ranger finder
• Compact threaded mounting block with eyepiece and mechanical focus system

Coronado 1-Year Limited Warranty

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