{"id":8841,"date":"2025-06-26T17:51:30","date_gmt":"2025-06-26T15:51:30","guid":{"rendered":"https:\/\/deep-space-astronomy.ch\/?post_type=product&p=8841"},"modified":"2025-09-17T15:45:58","modified_gmt":"2025-09-17T13:45:58","slug":"sky-watcher-hac125dx","status":"publish","type":"product","link":"https:\/\/deep-space-astronomy.ch\/en\/product\/sky-watcher-hac125dx\/","title":{"rendered":"Sky-Watcher HAC125DX"},"content":{"rendered":"
\n

Sky-Watcher HAC125DX Minigraph - Ultra-fast Honders f\/2 catadioptric astrograph<\/h3>\n

Visit Sky-Watcher HAC125DX Minigraph<\/strong> is a advanced catadioptric astrograph<\/strong> using optical design Honders<\/strong>, combining refractive and reflective surfaces to offer an ultra-fast, lightweight and compact instrument. With its f\/2 ratio<\/strong> and its 250 mm focal length, it captures images up to 5\u00d7 faster<\/strong> than a conventional f\/4.9 lens, considerably reducing exposure times and often making autoguiding unnecessary.<\/p>\n

Equipped with a Mangin primary mirror<\/strong> with treatment Radiant Aluminum Quartz (RAQ\u2122)<\/strong> and a treated corrector HTMC\u2122<\/strong>, the HAC125DX delivers sharp, high-contrast images with limited diffraction and an image circle of 16 mm<\/strong> perfectly matched to cameras IMX533<\/strong> and IMX585<\/strong>. Sound new helical focusing system on the primary lens<\/strong> extends compatibility with different camera models and simplifies focusing in real-life use.<\/p>\n

Highlights<\/h3>\n
    \n
  • Advanced Honders optics<\/strong> refractor\/reflector combination for outstanding image quality.<\/li>\n
  • Fast f\/2 aperture<\/strong> - ideal for wide-field deep sky and ultra-short exposure times.<\/li>\n
  • 125 mm opening<\/strong> - high sharpness and optimized light collection.<\/li>\n
  • 250 mm focal length<\/strong> - perfect for vast nebulae, stellar fields and comets.<\/li>\n
  • Corrected circle 16 mm<\/strong> - optimized for IMX533\/IMX585 sensors.<\/li>\n
  • Lightweight and compact<\/strong> Only 3.8 kg, 40 cm long, easy to transport.<\/li>\n
  • Primary collimation<\/strong> possible for perfect alignment.<\/li>\n
  • Clamshell with Vixen dovetail<\/strong> - fast, stable mounting on photo\/astro mounts.<\/li>\n<\/ul>\n

    Recommended applications<\/h3>\n
      \n
    • Wide-field astrophotography<\/strong> fast capture of nebulae and extensive star fields. Coupled with a camera like URANUS or Minicam8, it's enough to make a photo monster.<\/li>\n
    • Nomad and travel<\/strong> compact, featherweight design, ideal for portable frames.<\/li>\n
    • Time-lapse and survey projects<\/strong> fast acquisition rate thanks to f\/2.<\/li>\n<\/ul>\n

      Technical specifications<\/h3>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
      Optical design<\/th>\nHonders Advanced Catadioptric<\/td>\n<\/tr>\n
      Diameter<\/th>\n125 mm<\/td>\n<\/tr>\n
      Focal length<\/th>\n250 mm<\/td>\n<\/tr>\n
      F\/D ratio<\/th>\nf\/2<\/td>\n<\/tr>\n
      Image circle<\/th>\n16 mm<\/td>\n<\/tr>\n
      Primary mirror<\/th>\nMangin, RAQ\u2122 treatment<\/td>\n<\/tr>\n
      Corrective treatment<\/th>\nHTMC\u2122<\/td>\n<\/tr>\n
      Weight<\/th>\n3.8 kg<\/td>\n<\/tr>\n
      Tube length<\/th>\n40 cm<\/td>\n<\/tr>\n
      Secondary obstruction (diameter)<\/th>\n53 mm<\/td>\n<\/tr>\n
      Dawes limit<\/th>\n0,93\u2033<\/td>\n<\/tr>\n
      Rayleigh limit<\/th>\n1,12\u2033<\/td>\n<\/tr>\n
      Magnitude limit<\/th>\n12,96<\/td>\n<\/tr>\n
      Optical quality<\/th>\nLimited diffraction (1\/4 wave)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

      Accessories included<\/h3>\n
        \n
      • Clamshell with Vixen-type dovetail<\/li>\n
      • 1.25\u2033 and M42\u00d70.75 camera adapters (male and female)<\/li>\n
      • Fog screen<\/li>\n<\/ul>\n

        Why choose the Minigraph HAC125DX?<\/h3>\n
          \n
        • Acquisition speed<\/strong> unrivalled for an instrument of this size.<\/li>\n
        • Optimized optical design<\/strong> for maximum sharpness and minimum vignetting.<\/li>\n
        • Versatility<\/strong> Suitable for both ambitious beginners and advanced astrophotographers looking for a nomadic setup.<\/li>\n<\/ul>\n

          SEO keywords<\/h3>\n

          Sky-Watcher HAC125DX, Honders catadioptric astrograph, Minigraph f\/2, portable astrophoto telescope, 16 mm image circle, IMX533, IMX585, fast wide-field telescope.<\/p>\n<\/div>","protected":false},"excerpt":{"rendered":"

          Sky-Watcher HAC125DX Minigraph \u2013 Astrographe catadioptrique Honders f\/2 ultra-rapide Le Sky-Watcher HAC125DX Minigraph est un astrographe catadioptrique avanc\u00e9 utilisant le design optique Honders, combinant surfaces r\u00e9fractives et r\u00e9fl\u00e9chissantes pour offrir un instrument ultra-rapide, l\u00e9ger et compact. Avec son rapport f\/2 et sa focale de 250\u00a0mm, il capture les images jusqu\u2019\u00e0 5\u00d7 plus vite qu\u2019une optique […]<\/p>\n","protected":false},"featured_media":9718,"comment_status":"open","ping_status":"closed","template":"","meta":[],"product_brand":[822],"product_cat":[643],"product_tag":[],"class_list":{"0":"post-8841","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_brand-sky-watcher","7":"product_cat-lunettes-solaires","9":"first","10":"on_supplier","11":"taxable","12":"shipping-taxable","13":"purchasable","14":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/deep-space-astronomy.ch\/en\/wp-json\/wp\/v2\/product\/8841","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=8841"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/deep-space-astronomy.ch\/en\/wp-json\/wp\/v2\/media\/9718"}],"wp:attachment":[{"href":"https:\/\/deep-space-astronomy.ch\/en\/wp-json\/wp\/v2\/media?parent=8841"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/deep-space-astronomy.ch\/en\/wp-json\/wp\/v2\/product_brand?post=8841"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/deep-space-astronomy.ch\/en\/wp-json\/wp\/v2\/product_cat?post=8841"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/deep-space-astronomy.ch\/en\/wp-json\/wp\/v2\/product_tag?post=8841"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}