Lunt 60mm Ha Etalon-Filter-System with B3400 blocking filter for 2'' focuser

Product code: LS60FHa2B3400
£4,131.00
£3,442.50 (ex. VAT)
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Product information

LUNT LS60FHa2/B3400 (0550257) H-alpha Single Pass Front Mount Etalon System for telescopes with 2" focuser and up to 3060mm focal length. LS60FHa Main Filter B3400 Blocking Filter (for 2" focuser) in extension-tube Transport case The LS60 Hydrogen-alpha filter system with 60mm aperture (no central obstruction) integrally tuned etalon for use on any refractor and many other telescopes. Because the LS60FHa has an estimated bandwidth of <0.7 Angstrom it is capable to providing high contrast views of both surface and edge detail. The system includes the B3400 blocking filter, which is usable for telescopes up to 3060mm focal length. The blocking filter is installed in a straight extension tube for 2" focuser. This extension tube is equipped with a reception for 2" eyepieces and a adapter for 1.25" eyepieces. Adding an additional available Double-Stack etalon system will reduce the bandwidth to ~<0.5 Angstrom. Technical data: Aperture: 60 mm No central obstruction Bandwidth: <0.7 Angstrom Tuning: tiltable Etalon Housing diameter: 95 mm Length: 85 mm Weight: 0.85 kg Front thread: M90x1 female thread Rear thread: M90x1 male thread Blocking filter: B3400 in extension tube for 2" focuser Maximum focal length of telescope: 3060 mm

 

Technical specifications

Brand Lunt
Product Code LS60FHa2B3400
Weight 5kg