{"id":7307,"date":"2025-04-28T16:04:42","date_gmt":"2025-04-28T14:04:42","guid":{"rendered":"https:\/\/deep-space-astronomy.ch\/?post_type=product&p=7307"},"modified":"2025-09-17T15:41:33","modified_gmt":"2025-09-17T13:41:33","slug":"astrographe-super-apo-askar-sqa70","status":"publish","type":"product","link":"https:\/\/deep-space-astronomy.ch\/en\/product\/astrographe-super-apo-askar-sqa70\/","title":{"rendered":"Astrographe Super Apo Askar SQA70"},"content":{"rendered":"

ASKAR SQA70 - the quintuplet astrograph that enhances your wide-field images<\/h3>\n
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Treat yourself to the optical precision of an instrument designed made to measure<\/em> for high-resolution digital imaging. Compact, lightweight and formidably efficient, the SQA70 packs all Askar's expertise into a 70 mm tube... and shakes up the standards of nomadic astrographs.<\/p>\n

\"\u957f\u53cb\u6c14\u4f53\"<\/p>\n<\/div>\n

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Petzval quintuplet optics: sharpness and chromatism under control<\/h3>\n
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  • Objective quintuplet air-spaced<\/strong> with 2 ED lenses<\/strong>\u00a0faithful colors and impeccable stars.<\/li>\n
  • Focal length 336 mm (f\/4.8)<\/strong>\u00a0Wide, bright field, perfect for nebulae and large stellar clouds.<\/li>\n
  • Design Petzval \"\u00a0flat-field<\/em>\u00a0\"integrated: focal plane perfectly flat over 44 mm<\/strong>without external corrector.<\/li>\n<\/ul>\n<\/div>\n
    \n

    Outstanding illumination and image sharpness<\/h3>\n
      \n
    • \u2265 90 % of illumination<\/strong> to the corners of a full-format sensor: minimal vignetting.<\/li>\n
    • RMS radii of stars < 1.84 \u00b5m at center<\/strong> \/ < 2.4 \u00b5m in corners<\/strong>\u00a0exceptional punctuality.<\/li>\n<\/ul>\n<\/div>\n
      \n

      Premium mechanics designed for photographers<\/h3>\n
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      • Lens holder 2.5\" dual-speed rack (1:10)<\/strong> supporting heavy imaging trains.<\/li>\n
      • 360\u00b0 rotator<\/strong> for precise framing without losing focus.<\/li>\n
      • Lightweight one-piece collar with integrated handle\/rail and double base finder<\/strong> for accessories.<\/li>\n<\/ul>\n<\/div>\n
        \n

        Nomadic format, robust and versatile<\/h3>\n
          \n
        • Length 332 mm<\/strong> (lens hood retracted) for 2.68 kg<\/strong> only: ideal as carry-on.<\/li>\n
        • Rear threads M42, M48 (2\u2033 filter) and M54<\/strong> supplied: recommended back-focus 55 mm (adjustable 37-68 mm).<\/li>\n
        • Supplied in a Oxford soft case<\/strong> padded and ready for the field.<\/li>\n<\/ul>\n<\/div>\n
          \n

          Key specifications<\/h2>\n\n\n\n\n\n\n\n\n\n\n\n\n\n
          Parameter<\/th>\nValue<\/th>\n<\/tr>\n<\/thead>\n
          Opening<\/td>\n70 mm<\/td>\n<\/tr>\n
          Focal length \/ F-ratio<\/td>\n336 mm - f\/4.8<\/td>\n<\/tr>\n
          Design<\/td>\nPetzval APO quintuplet (2 \u00d7 ED)<\/td>\n<\/tr>\n
          Image circle<\/td>\n44 mm (full format)<\/td>\n<\/tr>\n
          OTA length<\/td>\n332 mm (folded) \/ 372 mm (unfolded)<\/td>\n<\/tr>\n
          Mass OTA<\/td>\n2.68 kg<\/td>\n<\/tr>\n
          Lens holder<\/td>\n2.5\u2033 dual-speed rack + 360\u00b0 rotator<\/td>\n<\/tr>\n
          Output threads<\/td>\nM42 - M48 (M48\u00d70.75) - M54<\/td>\n<\/tr>\n
          Back-focus<\/td>\n55 mm recommended (37-68 mm possible)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n
          \n

          Why choose the SQA70?<\/h2>\n
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          • Extreme versatility<\/strong>\u00a0From wide-angle celestial landscapes to mosaic imagery, she excels everywhere.<\/li>\n
          • Ease of use<\/strong>\u00a0no external correctors or complex calculations.<\/li>\n
          • Optical performance<\/strong>\u00a0fine stars, illuminated field, chromatism cancelled.<\/li>\n
          • Mobility<\/strong>\u00a0Less than 3 kg and 33 cm, perfect for nomadic or stationary use.<\/li>\n<\/ul>\n<\/div>\n

            With the ASKAR SQA70<\/strong>capture the grandeur of the night sky - wide-field perfection is now in the palm of your hand.<\/p>\n

             <\/p>","protected":false},"excerpt":{"rendered":"

            ASKAR SQA70 \u2013 l\u2019astrographe quintuplet qui sublime vos images grand\u2011champ Offrez-vous la pr\u00e9cision optique d\u2019un instrument con\u00e7u sur mesure pour l\u2019imagerie num\u00e9rique haute r\u00e9solution. Compacte, l\u00e9g\u00e8re et d\u2019une redoutable efficacit\u00e9, la SQA70 concentre tout le savoir\u2011faire d\u2019Askar dans un tube de 70 mm\u2026 et bouscule les standards des astrographes nomades. Optique quintuplet Petzval\u00a0: piqu\u00e9 et […]<\/p>\n","protected":false},"featured_media":7308,"comment_status":"open","ping_status":"closed","template":"","meta":[],"product_brand":[382],"product_cat":[755,384],"product_tag":[],"class_list":{"0":"post-7307","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_brand-askar","7":"product_cat-lunettes-apochromatiques","8":"product_cat-lunettes_refracteurs","10":"first","11":"on_supplier","12":"taxable","13":"shipping-taxable","14":"purchasable","15":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/deep-space-astronomy.ch\/en\/wp-json\/wp\/v2\/product\/7307","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=7307"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/deep-space-astronomy.ch\/en\/wp-json\/wp\/v2\/media\/7308"}],"wp:attachment":[{"href":"https:\/\/deep-space-astronomy.ch\/en\/wp-json\/wp\/v2\/media?parent=7307"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/deep-space-astronomy.ch\/en\/wp-json\/wp\/v2\/product_brand?post=7307"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/deep-space-astronomy.ch\/en\/wp-json\/wp\/v2\/product_cat?post=7307"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/deep-space-astronomy.ch\/en\/wp-json\/wp\/v2\/product_tag?post=7307"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}