{"id":12001,"date":"2025-11-21T14:41:34","date_gmt":"2025-11-21T13:41:34","guid":{"rendered":"https:\/\/deep-space-astronomy.ch\/?post_type=product&p=12001"},"modified":"2026-03-17T19:34:33","modified_gmt":"2026-03-17T18:34:33","slug":"touptek-hope-d60","status":"publish","type":"product","link":"https:\/\/deep-space-astronomy.ch\/en\/product\/touptek-hope-d60\/","title":{"rendered":"ToupTek HOPE D60"},"content":{"rendered":"

ToupTek HOPE D60 - Full-format 60mm f\/4.66 PAPO refractor for astrophotography<\/h3>\n

Visit ToupTek HOPE D60<\/strong> is a true astrograph in a compact format: an apochromatic telescope with a 60 mm diameter<\/strong> and 280 mm focal length<\/strong> (f\/4.66), equipped with a PAPO (Planar Apochromatic) optics<\/strong> with 5 elements and a integrated field corrector<\/strong>. It effortlessly covers a full-format sensor (44 mm image circle) while delivering spot stars from center to corner, without the need for additional correctors or complicated backfocus calculations.<\/p>\n

Designed above all for the\u2019deep sky astrophotography<\/strong>, Yet the HOPE D60 remains accessible to beginners who want an instrument that's easy to set up and easy to upgrade. Its short, robust tube focuser de 3\u2033<\/strong> and its M48\/M54 interfaces make it an excellent companion for both modern astro cameras and hybrid photo cameras.<\/p>\n

\"HOPE<\/p>\n

What is the PAPO optical formula?<\/h3>\n

The formula PAPO (Planar Apochromatic)<\/strong> of the HOPE D60 is a 5-lens apochromatic lens<\/strong> specially developed for astrophotography:<\/p>\n

    \n
  • 5 elements in 3 groups<\/strong> (PAPO) combining glass SD<\/strong> (low dispersion) and lanthanum<\/strong>, for a virtually no chromatic aberration<\/strong> and color fidelity.<\/li>\n
  • Flat design<\/strong> (planar) with integrated field corrector<\/strong> - the field curvature is compensated for in the optics, resulting in a perfectly flat field to the edge of a full-format sensor<\/strong>.<\/li>\n
  • The corrector is integrated into the optical train<\/strong> (and not added as an accessory), which:\n
      \n
    • reduces the risk of mechanical tilt and play,<\/li>\n
    • simplifies the optical chain,<\/li>\n
    • avoids stacking rings and external correctors.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n

      In concrete terms, the PAPO formula offers round, highly concentrated stars<\/strong>, with uniform sharpness across the entire field. Optical tests show a spot RMS radius<\/strong> below 1.1 \u00b5m at center<\/strong> and 2.3 \u00b5m at full-format edge<\/strong>\u00a0We're very close to the diffraction limit. What's more, the system maintains an almost identical focus over several wavelengths, guaranteeing a common focus for RGB<\/strong> and stars without colored bangs.<\/p>\n

      \"HOPE<\/p>\n

      Optical performance: punctual stars and a perfectly illuminated field<\/h3>\n

      The HOPE D60 is designed as a fast, perfectly corrected astrograph for modern sensors:<\/p>\n

        \n
      • f\/4.66 ratio<\/strong>\u00a0280 mm short focal length for a large field<\/strong> and a highly efficient light collection<\/strong>. Ideal for extensive nebulae, large galactic fields, HII regions, etc.<\/li>\n
      • Full-format field (44 mm)<\/strong>\u00a0the image circle comfortably covers 24\u00d736 mm sensors with sharp stars right to the corners<\/strong>.<\/li>\n
      • Relative illumination > 90 % at 22 mm<\/strong>\u00a0The difference in brightness between the center and edge of the sensor is < 10 %, which greatly limits vignetting and allows for smooth, easy-to-correct flats.<\/li>\n
      • High MTF<\/strong>\u00a0HOPE D60 typically exceeds 0.95 to 10 lp\/mm<\/strong> and remains above 0.85 to 30 lp\/mm<\/strong>, with little sagittal\/tangential variation - a sign of excellent resolution and uniform contrast throughout the image.<\/li>\n
      • Minimum longitudinal aberration<\/strong>\u00a0: focus curves as a function of wavelength are very narrow, guaranteeing a common focus from blue to red<\/strong> and a sharp image for the various filters.<\/li>\n<\/ul>\n

        The combination of these features results in images that are very pricked, even and without soft corners<\/strong>, even on large or very demanding sensors (fine pixels).<\/p>\n

        Simple backfocus and flat native field<\/h3>\n

        Thanks to the integrated flattener<\/strong>, The HOPE D60 functions as a ready-to-use astrograph:<\/p>\n

          \n
        • Recommended backfocus: 55 mm<\/strong> from threaded outlet (tolerable ~50 to 58 mm, 55 mm being the target value).<\/li>\n
        • No need for calculate complicated distances<\/strong> nor do we need to add an external corrector: we simply use a standard chain (camera adapter + rings) to reach 55 mm.<\/li>\n
        • This approach reduces the probability of tilt, flexion or mechanical misalignment<\/strong> often introduced by the stacking of accessories.<\/li>\n<\/ul>\n

          Note: as focus and backfocus are optimized for a direct photographic chain, the use of a angled return for visual<\/strong> is not recommended on this model - the HOPE D60 is truly designed as a pure astrophoto instrument<\/strong>.<\/p>\n

          Mechanical design: precise 3\u2033 focuser and robust tube<\/h3>\n

          The HOPE D60 is not only optically accomplished, it is also mechanically meticulous:<\/p>\n

            \n
          • 3\u2033 rack and pinion focuser<\/strong>, with a 30 mm stroke<\/strong>, setting fast + gear ratio 1:10<\/strong> for ultra-precise focusing, adapted to modern cameras and autofocus.<\/li>\n
          • Graduated scale and focuser window<\/strong>\u00a0Easy to find the ideal position with your different setups.<\/li>\n
          • CNC-machined aluminum construction<\/strong>\u00a0Rigid tube, very good collimation retention, stability against temperature variations and vibration.<\/li>\n
          • Blackened and baffled inner tube<\/strong>\u00a0Stray light suppression to improve contrast and image cleanliness.<\/li>\n
          • Retractable mist guard<\/strong>\u00a0Protects the front lens, reduces fogging and folds away to save space.<\/li>\n
          • 360\u00b0 rotating ring (CAA)<\/strong>\u00a0: allows you to rotate the camera\/filter wheel assembly<\/strong> without dismantling, to adjust framing without upsetting the entire optical train.<\/li>\n
          • Multifunction handle<\/strong> with slots for accessories (finder, mini-guidescope, ASIAIR\/StellaVita, etc.).<\/li>\n
          • Integrated dovetail bar<\/strong> with pre-drilled slots for easy adaptation to your collars and plates.<\/li>\n<\/ul>\n

            Ultra-compact format for easy transport<\/h3>\n

            Despite its performance, the HOPE D60 remains extremely compact<\/strong>\u00a0:<\/p>\n

              \n
            • Length approx. 255 mm<\/strong> fog shield retracted.<\/li>\n
            • Space-saving design allows fit in a photo bag<\/strong> or a small carrying case.<\/li>\n
            • Perfect for lightweight setups with travel mounts, nomadic overnights, or as a second wide-field tube<\/strong>.<\/li>\n<\/ul>\n

              M48 & M54 interfaces and extended compatibility<\/h3>\n

              The focuser's output is designed for easy integration into modern astrophotography chains:<\/p>\n

                \n
              • M48 adapter included<\/strong> standard: perfect for most astro cameras and for T-rings on hybrid\/DSLR bodies.<\/li>\n
              • Optional M54 adapter<\/strong> available for larger-format sensors<\/strong> or optical trains requiring a wider passage (less mechanical vignetting).<\/li>\n
              • Compatible with many filter wheels, OAG and focus motors<\/strong> market, thanks to standardized interfaces.<\/li>\n<\/ul>\n

                The HOPE D60 is also designed to operate with motorized focusers<\/strong> of different brands, simplifying integration into a fully automated setup (autofocus, long sequences, remote, etc.).<\/p>\n

                Examples of configurations and uses<\/h3>\n

                Thanks to its versatility, the HOPE D60 covers a wide range of applications:<\/p>\n

                  \n
                • Deep sky wide field astrophotography<\/strong>\u00a0extended nebulae, molecular cloud complexes, regions around the galactic plane, large open clusters, etc.<\/li>\n
                • Lunar and solar astrophotography<\/strong> (with suitable filter): excellent resolution and contrast thanks to apochromatic optics and flat field.<\/li>\n
                • Use as a \u00absuper telephoto lens\u00bb<\/strong>\u00a0When paired with a DSLR\/hybrid body, the HOPE D60 becomes a 280 mm f\/4.66 lens<\/strong> very high quality, also useful for daytime photography (animals, landscapes, etc.).<\/li>\n
                • Nomadic setup<\/strong>\u00a0light-weight HAE\/Star Adventurer\/equivalent mount, cooled or uncooled color camera, HOPE D60, StellaVita or ASIAIR controller - a minimalist but high-performance kit.<\/li>\n<\/ul>\n

                  Summary of technical specifications<\/h3>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
                  Instrument type<\/strong><\/td>\n5-element PAPO (Planar APO) apochromatic refractor<\/td>\n<\/tr>\n
                  Useful diameter<\/strong><\/td>\n60 mm<\/td>\n<\/tr>\n
                  Focal length<\/strong><\/td>\n280 mm<\/td>\n<\/tr>\n
                  Opening report<\/strong><\/td>\nf\/4,66<\/td>\n<\/tr>\n
                  Image circle<\/strong><\/td>\n44 mm (full format)<\/td>\n<\/tr>\n
                  Optical design<\/strong><\/td>\n5 SD & lanthanum glass lenses, integrated field corrector (planar)<\/td>\n<\/tr>\n
                  Image quality<\/strong><\/td>\nSpot RMS < 1.1 \u00b5m at center, 0.95 at 10 lp\/mm, > 0.85 at 30 lp\/mm<\/td>\n<\/tr>\n
                  Relative illumination<\/strong><\/td>\n> 90 % at full-format edge (22 mm)<\/td>\n<\/tr>\n
                  Backfocus recommended<\/strong><\/td>\n55 mm (range ~50-58 mm)<\/td>\n<\/tr>\n
                  Focuser<\/strong><\/td>\n3\u2033 rack and pinion, ~30 mm stroke, double speed 1:10, graduated scale<\/td>\n<\/tr>\n
                  Interfaces<\/strong><\/td>\nM48 standard, M54 adapter optional<\/td>\n<\/tr>\n
                  Tube length<\/strong><\/td>\n~255 mm retracted fog shield (very compact tube)<\/td>\n<\/tr>\n
                  Tube & mechanics<\/strong><\/td>\nCNC-machined aluminum, internal blackened tube, retractable mist guard, multi-purpose handle, integrated dovetail<\/td>\n<\/tr>\n
                  Main use<\/strong><\/td>\nWide-field deep-sky astrophotography, lunar\/solar (with suitable filters), telephoto lens for daytime photography<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

                  Who is the ToupTek HOPE D60 designed for?<\/h3>\n

                  The HOPE D60 is equally well suited to the ambitious beginner<\/strong> who wants a simple, high-performance, scalable instrument, than to the\u2019experienced astrophotographer<\/strong> looking for a fast, perfectly flat and very compact full-format astrograph<\/strong>. Its 5-element PAPO formula, 3\u2033 focuser and modern interfaces make it an ideal tube for taking full advantage of today's cameras and housings - in the field as well as in fixed or nomadic setups.<\/p>","protected":false},"excerpt":{"rendered":"

                  ToupTek HOPE D60 \u2013 R\u00e9fracteur PAPO plein format 60\u00a0mm f\/4,66 pour l\u2019astrophotographie Le ToupTek HOPE D60 est un v\u00e9ritable astrographe au format compact : une lunette apochromatique de 60\u00a0mm de diam\u00e8tre et 280\u00a0mm de focale (f\/4,66), dot\u00e9e d\u2019une optique PAPO (Planar Apochromatic) \u00e0 5 \u00e9l\u00e9ments et d\u2019un correcteur de champ int\u00e9gr\u00e9. Il couvre sans effort […]<\/p>\n","protected":false},"featured_media":12002,"comment_status":"open","ping_status":"closed","template":"","meta":[],"product_brand":[831],"product_cat":[816,755],"product_tag":[],"class_list":{"0":"post-12001","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_brand-touptek","7":"product_cat-nouveautes","8":"product_cat-lunettes-apochromatiques","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\/12001","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=12001"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/deep-space-astronomy.ch\/en\/wp-json\/wp\/v2\/media\/12002"}],"wp:attachment":[{"href":"https:\/\/deep-space-astronomy.ch\/en\/wp-json\/wp\/v2\/media?parent=12001"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/deep-space-astronomy.ch\/en\/wp-json\/wp\/v2\/product_brand?post=12001"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/deep-space-astronomy.ch\/en\/wp-json\/wp\/v2\/product_cat?post=12001"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/deep-space-astronomy.ch\/en\/wp-json\/wp\/v2\/product_tag?post=12001"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}