{"product_id":"lunt-ls50c-compact-double-stack-filter","title":"Lunt LS50C Compact Double-Stack Filter","description":"\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eLS50C — Compact Double Stack Filter\u003c\/strong\u003e \u003cem\u003eThe double-stack upgrade designed specifically for the Lunt LS50THa 50mm solar telescope series.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003e\u003cem\u003eNow with new-generation etalons — every unit individually tested on Lunt's precision metrology equipment. Every specification is verified, not estimated.\u003c\/em\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eThe LS50C is a compact double-stack filter made specifically for the Lunt LS50THa 50mm dedicated solar telescope series. It threads directly onto the front of the LS50THa OTA in seconds — no tools, no factory visit — adding a second 0.35Å tilt-tuned etalon to the optical path and reducing combined system bandpass to ~0.30Å when used with current LS50THa telescopes.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eThe compact form factor is the defining characteristic of the LS50C. It is designed to maintain the LS50THa's grab-and-go character — the total system with the DS filter in place remains compact and manageable on any Vixen-compatible mount or photo tripod. At ~0.30Å combined bandpass the chromospheric contrast improvement over single-stack is immediately and dramatically visible. Surface structure that single-stack views render as texture becomes resolved detail. Plage regions separate from the chromospheric background. Filaments show dark cores and complex multi-strand architecture. Prominences reveal internal threading from base to tip.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e A Lunt blocking filter is required for safe operation — the LS50C cannot be used without one.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eNote on bandpass:\u003c\/strong\u003e Combined system bandpass of ~0.30Å is achieved when paired with current LS50THa telescopes. Future LS50THa instruments with new-generation internal etalons will achieve \u0026lt;0.28Å combined.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003eModel: LS50C\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003eOptical Aperture: 50mm compact — no central obstruction\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003eTuning: Tilt-tuned\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003eSingle Etalon Bandpass: 0.35Å — individually verified\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003eCombined System Bandpass: ~0.30Å with current LS50THa telescopes\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003eInstallation: Threads directly onto LS50THa OTA front — no tools required\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003eCompatible With: LS50THa Standard, Enhanced, and Premium series\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003eBlocking Filter Required: Yes — sold separately (B600 recommended)\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003eStorage: Aluminum hard case with fitted foam\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Starizona","offers":[{"title":"Default Title","offer_id":48746656596225,"sku":"LS50CP","price":995.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0327\/2569\/6648\/files\/LS50c.jpg?v=1778110095","url":"https:\/\/starizona.com\/products\/lunt-ls50c-compact-double-stack-filter","provider":"Starizona","version":"1.0","type":"link"}