{"product_id":"mighty-cat-71-30a","title":"Mighty-Cat 71 · 30th Anniversary Limited Edition","description":"\u003cp\u003eThe William Optics \u003cstrong\u003eMighty Cat 71 · 30 Years Anniversary Limited Edition\u003c\/strong\u003e is a groundbreaking 71mm apochromatic astrograph engineered to redefine ultra-fast deep-sky imaging. Celebrating three decades of optical innovation, this exclusive 100-set limited run features a custom \"Cosmic Visitor\" design adorned with intricate extraterrestrial motifs — a tribute to 30 years of peering into the unknown and chasing the mysteries of the universe. It introduces an unprecedented, record-breaking f\/3.2 focal ratio—the fastest telescope William Optics has ever created—while featuring a 43.2mm image circle and the patented WIFD internal focusing system.\u003c\/p\u003e\n\u003cp\u003eThe ultra-fast f\/3.2 optical system drastically reduces required exposure times, helping capture faint nebulae, dark dust lanes, and expansive celestial structures in a fraction of the time. With its flat-field 7-element optics, stable internal focusing, and a playful design that hints at technology from another world, the Mighty Cat 71 Anniversary Edition is built for demanding deep-sky imaging with modern full-frame and cropped-sensor camera systems.\u003c\/p\u003e\n\u003ch3\u003eKey Features:\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eF\/3.2 Ultra-Fast Optics\u003c\/strong\u003e\u003cbr\u003eCaptures deep-sky objects with unparalleled efficiency, utilizing the fastest optical system in William Optics history to maximize photon collection and shorten exposure tracks.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAdvanced 7-Element Petzval Design\u003c\/strong\u003e\u003cbr\u003eProvides a naturally flat image field without requiring an additional field flattener, delivering sharp stars and clean detail across a wide imaging area.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e43.2mm Full-Frame Image Circle\u003c\/strong\u003e\u003cbr\u003eSupports full-frame, APS-C, and M4\/3 camera systems, giving astrophotographers total freedom for wide-field composition and high-resolution deep-sky imaging.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWIFD (William Optics Internal Focuser Design) \u003c\/strong\u003e\u003cbr\u003eThe patented internal focusing system keeps the focusing mechanism centered inside the telescope, improving balance and helping avoid rear drawtube-related flexure or vignetting.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSensor Tilt Xterminator (STX-R)\u003c\/strong\u003e\u003cbr\u003eFeatures a heavy-duty rear tilt and rotation interface designed to support modern imaging setups, reducing the chance of rear-end sag while retaining convenient sensor-squaring capability.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAnti-Shrink Lens Cell Technology\u003c\/strong\u003e\u003cbr\u003eHelps maintain stable optical alignment under changing temperatures by minimizing the effects of material expansion and contraction around the lens cell.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBuilt-In Patented Bahtinov Mask\u003c\/strong\u003e\u003cbr\u003eIntegrated into the front cap for quick and accurate focusing, making precise star focus easier in the field.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePatented Handle Bar Design\u003c\/strong\u003e\u003cbr\u003eImproves handling, portability, and accessory mounting while maintaining the clean mechanical layout of the Mighty Cat platform.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePersonalized Laser Engraving\u003c\/strong\u003e\u003cbr\u003eAvailable for direct purchases, allowing each telescope to carry a customized personal mark.\u003c\/p\u003e","brand":"William Optics","offers":[{"title":"Red","offer_id":48828714713305,"sku":"T-MC-71RD-30A","price":2598.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0675\/5752\/3673\/files\/MC-71-30A-pers-1.jpg?v=1781758566","url":"https:\/\/williamoptics.com\/products\/mighty-cat-71-30a","provider":"William Optics","version":"1.0","type":"link"}