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Lunt LS50FHa H-alpha double-stack solar filter

£1,424.00

Quick Overview

The LUNT LS50FHa H-alpha double-stack solar filter (0550200) is a Double-Stack Etalon for all LS50FHa filters and LS60THa telescopes. Adding this additional Double-Stack etalon system will reduce the bandwidth to ~<0.55 Angstrom (dependant upon the specifications of the telescope it is mounted on). This filter provides higher contrast views of the Sun for both visual and imaging uses and is particularly useful in isolating subtle solar surface details - granulation, sunspots and filaments.
0550200
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Details

50mm H-alpha Double Stack Etalon Solar-Filter Specifications:

Aperture: 50 mm
No central obstruction
Bandwidth double stacked: <0,55 Angstrom
Tuning: tiltable Etalon
Housing diameter: 95 mm
Length: 73 mm
Weight: 0.7 kg
Front thread: M90x1 female thread
Rear thread: M90x1 male thread

Without Blocking Filter! Only for use as double-stack filter, or together with a additional available blocking filter. If the filter is used only single stacked together with a optional blocking filter, then the bandwidth is <0.75 Angstrom.

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