{"id":14685,"date":"2026-04-14T12:39:25","date_gmt":"2026-04-14T10:39:25","guid":{"rendered":"https:\/\/deep-space-astronomy.ch\/?post_type=product&p=14685"},"modified":"2026-04-14T12:39:39","modified_gmt":"2026-04-14T10:39:39","slug":"sky-watcher-hac125dx-monture-eq-al55i-pro","status":"publish","type":"product","link":"https:\/\/deep-space-astronomy.ch\/en\/product\/sky-watcher-hac125dx-monture-eq-al55i-pro\/","title":{"rendered":"Sky-Watcher HAC125DX + EQ-AL55i PRO mount"},"content":{"rendered":"

 <\/p>\n

Sky-Watcher HAC125DX + EQ-AL55i PRO mount: the ultra-fast, compact new-generation astrograph<\/h3>\n

Visit Sky-Watcher HAC125DX + EQ-AL55i PRO Minigraph mount<\/strong> is a revolutionary astrograph designed for astrophotography enthusiasts in search of speed, compactness and performance<\/strong>. Thanks to its innovative design Honders Advanced Catadioptric (HAC)<\/strong>, It combines refractive and reflective optical elements to offer a unique instrument on the market.<\/p>\n

With its compact size and exceptional performance, this model fully deserves its nickname of \u201cUltimate Grab-and-Go Astrograph\u201d<\/strong>, ideal for fast, efficient sessions under the starry sky.<\/p>\n

Ultra-fast f\/2 optics for images in record time<\/h3>\n

The main advantage of the HAC125DX is its extremely fast f\/2 focal ratio<\/strong>, combined with a 250 mm focal length<\/strong>. This speed makes it possible to capture images up to 5 times faster than a conventional f\/4.9 instrument<\/strong>.<\/p>\n

In concrete terms, this means :<\/p>\n

    \n
  • More signal in less time<\/strong><\/li>\n
  • Shorter, more efficient imaging sessions<\/strong><\/li>\n
  • Fewer tracking constraints and often no autosteering<\/strong><\/li>\n<\/ul>\n

    With its 125 mm diameter<\/strong>, This astrograph offers excellent light-gathering capacity while remaining extremely portable.<\/p>\n

    Advanced HAC optical design<\/h3>\n

    The system Honders advanced catadioptric<\/strong> uses a Mangin mirror<\/strong> combined with corrective lenses, guaranteeing sharp, high-contrast, well-corrected images<\/strong> over the whole field.<\/p>\n

    Top-of-the-range optical coatings enhance this performance:<\/p>\n

      \n
    • RAQ\u2122 (Radiant Aluminum Quartz) mirror coating<\/strong> for excellent reflectivity<\/li>\n
    • HTMC\u2122 corrective treatment<\/strong> to maximize light transmission<\/li>\n<\/ul>\n

      Visit 16 mm image circle<\/strong> is ideally suited to modern compact sensors, such as IMX533 and IMX585<\/strong>, for excellent star rendering.<\/p>\n

      Optimized for modern astrophotography<\/h3>\n

      The HAC125DX has been designed for use with lightweight cameras (up to 300 g)<\/strong>, This ensures perfect balance and avoids any obstruction of the light beam.<\/p>\n

      The new helical rear focusing system<\/strong> on the primary mirror considerably improves precision and compatibility with different sensors. Compared with the previous model, this evolution enables more flexible and comfortable to use<\/strong>.<\/p>\n

      Sa compact length of just 40 cm<\/strong> and its weight 3.82 kg<\/strong> make it an ideal solution for astrophotographers on the move.<\/p>\n

      EQ-AL55i PRO SynScan mount: precision and automation<\/h3>\n

      The HAC125DX is combined with the EQ-AL55i PRO SynScan Go-To equatorial mount<\/strong>, a modern, high-performance solution for tracking celestial objects.<\/p>\n

      Thanks to its integrated Wi-Fi module<\/strong>, It's easy to control via smartphone with the SynScan Pro<\/strong> (iOS and Android). It provides access to a database of more than 10,000 celestial objects<\/strong>, including :<\/p>\n

        \n
      • Catalogs Messier, NGC, IC and Caldwell<\/strong><\/li>\n
      • Named stars and double stars<\/strong><\/li>\n
      • Planets, Sun and Moon<\/strong><\/li>\n<\/ul>\n

        The frame also features a illuminated polar viewfinder<\/strong> for precise alignment, as well as multiple interfaces (USB-C, autoguiding, SNAP for DSLRs<\/strong>), offering great versatility.<\/p>\n

        Visit 1.75\u2033 stainless steel tripod<\/strong> ensures excellent stability, essential for long exposure imaging.<\/p>\n

        A ready-to-use nomadic astrograph<\/h3>\n

        The HAC125DX is supplied with all essential accessories:<\/p>\n

          \n
        • 1.25\u2033 adapter<\/strong><\/li>\n
        • Adapter M42x0.75<\/strong><\/li>\n
        • Fog screen<\/strong><\/li>\n
        • Dovetail clamps<\/strong><\/li>\n<\/ul>\n

          Its compact design and speed of use make it perfect for spontaneous imaging sessions. Simply install it on a portable mount and start capturing the sky in minutes.<\/p>\n

          Technical specifications<\/h3>\n\n\n\n\n\n\n\n\n\n\n\n\n\n
          Features<\/th>\nDetail<\/th>\n<\/tr>\n
          Type<\/td>\nHAC catadioptric astrograph<\/strong><\/td>\n<\/tr>\n
          Diameter<\/td>\n125 mm<\/strong><\/td>\n<\/tr>\n
          Focal length<\/td>\n250 mm<\/strong><\/td>\n<\/tr>\n
          Focus report<\/td>\nf\/2 (ultra-fast)<\/strong><\/td>\n<\/tr>\n
          Image circle<\/td>\n16 mm<\/strong><\/td>\n<\/tr>\n
          Weight<\/td>\n3.82 kg<\/strong><\/td>\n<\/tr>\n
          Length<\/td>\n40 cm<\/strong><\/td>\n<\/tr>\n
          Focusing<\/td>\nRear helical on primary mirror<\/td>\n<\/tr>\n
          Frame<\/td>\nEQ-AL55i PRO SynScan Go-To Wi-Fi<\/strong><\/td>\n<\/tr>\n
          Database<\/td>\n10,000+ celestial objects<\/strong><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

          Why choose the Sky-Watcher HAC125DX?<\/h3>\n

          Visit HAC125DX Minigraph<\/strong> is a unique instrument that combines extreme speed, compactness and advanced technology<\/strong>. It is designed for beginner astrophotographers<\/strong> who want to simplify their sessions experienced users<\/strong> looking for a fast, high-performance setup.<\/p>\n

          Its ability to produce quality images in a minimum amount of time, without cumbersome follow-up constraints, makes it a particularly attractive tool. Compact, powerful and innovative, it redefines the standards of mobile astrography.<\/p>","protected":false},"excerpt":{"rendered":"

            Sky-Watcher HAC125DX + Monture EQ-AL55i PRO : l\u2019astrographe ultra-rapide et compact nouvelle g\u00e9n\u00e9ration Le Sky-Watcher HAC125DX + Monture EQ-AL55i PRO\u00a0Minigraph est un astrographe r\u00e9volutionnaire con\u00e7u pour les passionn\u00e9s d\u2019astrophotographie \u00e0 la recherche de vitesse, compacit\u00e9 et performance. Gr\u00e2ce \u00e0 sa conception innovante Honders Advanced Catadioptric (HAC), il combine des \u00e9l\u00e9ments optiques r\u00e9fractifs et r\u00e9flectifs […]<\/p>\n","protected":false},"featured_media":14681,"comment_status":"open","ping_status":"closed","template":"","meta":[],"product_brand":[822],"product_cat":[392,762,885,20],"product_tag":[],"class_list":{"0":"post-14685","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_brand-sky-watcher","7":"product_cat-telescopes_reflecteurs","8":"product_cat-equatoriales","9":"product_cat-honders-astrographes-rapides","10":"product_cat-montures","12":"first","13":"on_supplier","14":"taxable","15":"shipping-taxable","16":"purchasable","17":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/deep-space-astronomy.ch\/en\/wp-json\/wp\/v2\/product\/14685","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/deep-space-astronomy.ch\/en\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/deep-space-astronomy.ch\/en\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/deep-space-astronomy.ch\/en\/wp-json\/wp\/v2\/comments?post=14685"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/deep-space-astronomy.ch\/en\/wp-json\/wp\/v2\/media\/14681"}],"wp:attachment":[{"href":"https:\/\/deep-space-astronomy.ch\/en\/wp-json\/wp\/v2\/media?parent=14685"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/deep-space-astronomy.ch\/en\/wp-json\/wp\/v2\/product_brand?post=14685"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/deep-space-astronomy.ch\/en\/wp-json\/wp\/v2\/product_cat?post=14685"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/deep-space-astronomy.ch\/en\/wp-json\/wp\/v2\/product_tag?post=14685"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}