Lunt Solar 60mm Ha Etalon Filter for Double-Stack of All LS60T Models - LS60FHA

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About the Lunt 60mm Ha Etalon Filter for Double-Stacking... The Lunt 60mm Ha Etalon Filter for Double-Stacking is a Double-Stack Etalon for all LS60FHa Filters and Lunt Telescopes. This filter does not come with a blocking filter because it is assumed the user will have one already. You cannot use this filter , single or double-stacked, without the appropriate blocking filter at any time. Lunt 60mm Ha Etalon Filter for Double-Stacking Features... This is not a stand-alone filter. It must be used in conjunction with a Lunt Blocking Filter. No adapter is needed to connect one LS60FHa to another for double-stacking. Lunt 60mm Ha Etalon Filter for Double-Stacking Specifications... Optical Aperture: 60mm Etalon: Internal Tuning: Tilt Focal Length: Customer Telescope Storage: Aluminum finished hard case with fitted foam Weight: 3 lbs (~1.5kg) Lunt Product Number: LS60FHa Show more