Daystar Filters Quantum Sodium D 0.4Å… PE

Specialized Solar Filter: A 0.4Å PE Quantum Solar Filter designed for the Sodium D line (5895.9Å), ideal for detailed solar observations.
Telescope Compatibility: Suitable for use with refractors, SCTs, and Maksutovs, enhancing versatility for a variety of telescopic setups.
Comprehensive Kit Included: Comes with front and rear plates, power supply, instructions, and a hard case for a full and secure setup.
Additional Requirements for Peak Performance: Needs a UV/IR cut filter and a Powermate barlow or stop-down mask to achieve the best performance at F/27-F/35 focal ratio (sold separately).
Innovative Sodium Filter Design: Crafted for sub-angstrom observations with a single-cavity design, necessary for isolating the bright and narrow Sodium lines.
High Detail Imaging: Produces images with exceptional detail in granulation, supergranulation, and P-modes.
Observation of Solar Phenomena: Effective in displaying impulsive-phase flare eruption kernels and reflecting the lower chromosphere's activities in the Na D line.
University Series Features: Operates unheated on the lower Na D emission line and can be heated for transmission on the higher line, enabling doppler studies.
Dopplergram Velocity Imaging: Facilitates doppler studies and supergranulation studies by photographing in each line and deriving difference images.
Research and Observation Use: Historically used primarily for research purposes, including doppler studies and deep-sky observations.
Visual and Photographic Suitability: Ideal for both visual observing and photographic applications, revealing bright and detailed solar images.

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Daystar Filters Quantum Sodium D 0.4Å… PE

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