Quantum Hydrogen Alpha 0.3-0.5& 197;& 8230; SE Grade (SKU: QSE-C) all astro filters opinie

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Daystar Filters Quantum Hydrogen Alpha 0.3–0.5 Å SE Grade Filter (SKU: QSE-C) is a high-performance H-alpha line filter designed for advanced solar observation and imaging. Part of the renowned Quantum series, it combines precision optical performance with temperature-stabilized tuning for accurate wavelength control. The filter allows detailed observation of chromospheric structures such as filaments, plages, and surface texture, as well as larger prominences. Its narrow 0.3–0.5 Å bandpass provides excellent contrast of solar features, while the integrated temperature control system ensures stable operation exactly at the required wavelength.

Key features

• high-performance H-alpha line filter for solar observing and imaging
• 0.3–0.5 Å bandpass for enhanced chromospheric contrast
• central wavelength 6562.8 Å (H-alpha line)
• wavelength tuning range ±1.0 Å in 0.1 Å increments
• closed-loop temperature control for precise wavelength stability
• LCD display showing current wavelength with 0.1 Å resolution
• red / blue wing shift controls for precise wavelength adjustment
• LED status indicators for warming, ready, and fault conditions
• RS232 interface for computer control and on-screen monitoring
• simple plug-and-play operation once the unit reaches operating temperature

Box contents

• DayStar Quantum Hydrogen Alpha SE Grade filter unit
• 100–240 V AC power supply with US, EU, UK and AU adapters
• instruction manual
• protective hard case

Technical specifications

• type: hydrogen alpha line filter
• central wavelength: 6562.8 Å
• bandpass (FWHM @ f/30): 0.3–0.5 Å
• wavelength tuning range: ±1.0 Å
• tuning accuracy: 0.1 Å
• clear aperture: 32 mm (1.25")
• mounting position: eyepiece side of the telescope
• optical quality: 1/4 λ wavefront PV
• coatings: AR coated air-glass surfaces
• supply voltage: 12 V DC
• maximum current: 2.5 A
• power connector: 5.5 / 2.1 mm coaxial
• computer interface: RS232
• operating temperature range: 0–40°C
• operating humidity: 20–80%
• weight: approx. 0.5 kg

The Quantum SE series is designed for demanding solar observers and advanced astrophotographers. Proper operation requires an appropriate ERF (Energy Rejection Filter), and optimal performance is achieved when the telescope operates at approximately F/30, typically using a telecentric Barlow lens.