{"id":11005,"date":"2025-09-25T15:51:27","date_gmt":"2025-09-25T13:51:27","guid":{"rendered":"https:\/\/deep-space-astronomy.ch\/?post_type=product&p=11005"},"modified":"2026-03-31T10:54:04","modified_gmt":"2026-03-31T08:54:04","slug":"ts-optics-gso-12-rc-pro-carbone","status":"publish","type":"product","link":"https:\/\/deep-space-astronomy.ch\/en\/product\/ts-optics-gso-12-rc-pro-carbone\/","title":{"rendered":"TS-Optics GSO 12\u2033 RC Pro Carbon"},"content":{"rendered":"

TS-Optics GSO 12\u2033 RC Pro Carbon Truss Tube 304\/2432 - Astrophoto power<\/h3>\n

Visit TS-Optics GSO 12\u2033 Ritchey-Chr\u00e9tien (304 mm, 2432 mm, f\/8)<\/strong> with truss carbon tube<\/strong>\u00a0is designed for astrophotographers who demand professional results. With its large diameter, quartz mirrors with 94 % reflectivity and robust mechanics, it combines optical power and mechanical stability, ideal for sensors up to full format and beyond.<\/p>\n

Highlights<\/h3>\n
    \n
  • Genuine Ritchey-Chr\u00e9tien<\/strong> primary and secondary hyperbolic \u2192 coma-free and relatively flat field.<\/li>\n
  • Large diameter 304 mm<\/strong> 0.38\u2033 resolution and enhanced light gathering for nebulae and distant galaxies.<\/li>\n
  • Quartz mirrors (fused silica)<\/strong> virtually no dilatation, stable focus on long exposures.<\/li>\n
  • Reflectivity 94 %<\/strong> brighter, higher-contrast images than standards at 90 %.<\/li>\n
  • Carbon truss tube<\/strong> : structural rigidity, rapid ventilation, exceptional focus stability for long-term imaging.<\/li>\n
  • Two Losmandy dovetails<\/strong> maximum compatibility for heavy fixtures and fittings.<\/li>\n
  • Focuser RAP MONORAIL 3\u2033<\/strong> rack-and-pinion design on steel rail, 360\u00b0 rotation, 1:10 microfocuser, 5 kg load capacity, integrated M68\/M74\/M77 thread.<\/li>\n
  • Gen. 2 version<\/strong> integrated tilt, optimized anti-glare baffle, reinforced 3\u2033 extension.<\/li>\n<\/ul>\n

    Astrophotography<\/h3>\n

    The 12\u2033 RC delivers a corrected field of view up to approx. 35 mm diagonal without corrector, ideal for sensors APS-C<\/strong>. For the full format<\/strong> and beyond (60 mm max. with corrector), TS offers the right optical solutions. With the CCD47 reducer 0.67\u00d7<\/strong>the focal length drops to \u22481629 mm and the f\/8 ratio increases to f\/5,36<\/strong>which halves exposure times and widens the field of view for large objects.<\/p>\n

    Why a carbon truss tube?<\/h3>\n

    Unlike aluminum, carbon limits focus variations due to temperature changes. The design truss<\/strong> ensures rapid ventilation and mechanical rigidity to maintain collimation, whatever the position of the tube. Result: less refocusing, more consistency in your night-time acquisitions.<\/p>\n

    The RAP Monorail 3\u2033 focuser<\/h3>\n

    A robust evolution of the Crayford RAP Monorail 3\u2033<\/strong> rests on a solid steel rail rather than on small balls, eliminating tilt even under heavy load. It features a 50 mm stroke, a clear 68 mm aperture, a 1:10 microfocuser for precise adjustments, 360\u00b0 rotation and threads (M68x1, M74x0.75, M77x0.75) for secure mounting of accessories such as correctors, OAGs and heavy cameras.<\/p>\n

    RC vs SCT\/Mak advantages<\/h3>\n
      \n
    • No Schmidt blade<\/strong> : less fogging, full light transmission, including near-IR.<\/li>\n
    • Optical path 100 % reflective<\/strong> no permanent lenses \u2192 light gain and better spectral neutrality.<\/li>\n
    • No mirror shift<\/strong> : fixed primary, focusing via external focuser \u2192 optimal stability in long exposure imaging.<\/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<\/strong><\/td>\nRitchey-Chr\u00e9tien (hyperbolic mirrors)<\/td>\n<\/tr>\n
      Opening<\/strong><\/td>\n304 mm (12\u2033)<\/td>\n<\/tr>\n
      Focal length<\/strong><\/td>\n2432 mm<\/td>\n<\/tr>\n
      Ratio f\/<\/strong><\/td>\nf\/8 (\u2248 f\/5.36 with reducer 0.67\u00d7)<\/td>\n<\/tr>\n
      Theoretical resolution<\/strong><\/td>\n0,38\u2033<\/td>\n<\/tr>\n
      Mirrors<\/strong><\/td>\nQuartz, reflectivity 94 %<\/td>\n<\/tr>\n
      Backfocus<\/strong><\/td>\n\u2248285 mm from M117 thread, \u2248179 mm from 2\u2033 runner<\/td>\n<\/tr>\n
      Tube<\/strong><\/td>\nCarbon truss with internal baffling<\/td>\n<\/tr>\n
      Tube diameter<\/strong><\/td>\n\u2248485 mm<\/td>\n<\/tr>\n
      Tube length<\/strong><\/td>\n\u2248850 mm (without focuser)<\/td>\n<\/tr>\n
      Weight<\/strong><\/td>\n\u224824 kg (including focuser and dovetails)<\/td>\n<\/tr>\n
      Focuser<\/strong><\/td>\nRAP Monorail 3\u2033, microfocuser, 5 kg capacity<\/td>\n<\/tr>\n
      Connections<\/strong><\/td>\n2\u2033 & 1,25\u2033 + threads M68x1, M74x0.75, M77x0.75<\/td>\n<\/tr>\n
      Dovetails<\/strong><\/td>\n2\u00d7 Losmandy style<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

      In the box<\/h3>\n
        \n
      • RC 12\u2033 f\/8 carbon truss telescope<\/li>\n
      • RAP Monorail 3\u2033 focuser with 2\u2033 and 1.25\u2033 adapters<\/li>\n
      • Two Losmandy dovetails<\/li>\n
      • Extension rings (2\u00d725 mm, 1\u00d750 mm)<\/li>\n
      • Protective cap<\/li>\n<\/ul>\n

        In a nutshell<\/h3>\n

        Visit TS-Optics GSO 12\u2033 RC Pro Carbon Truss<\/strong> is the tool for the demanding astrophotographer: generous diameter, stability thanks to carbon + quartz, robust mechanics, optimized baffles and high-end focuser. A solution ready to rival professional standards for deep, sharp and bright images.<\/p>","protected":false},"excerpt":{"rendered":"

        TS-Optics GSO 12″ RC Pro Carbone Truss Tube 304\/2432 \u2013 La puissance astrophoto Le TS-Optics GSO 12″ Ritchey-Chr\u00e9tien (304 mm, 2432 mm, f\/8) avec truss tube carbone\u00a0est con\u00e7u pour les astrophotographes qui exigent des r\u00e9sultats professionnels. Avec son grand diam\u00e8tre, ses miroirs quartz \u00e0 94 % de r\u00e9flectivit\u00e9 et sa m\u00e9canique robuste, il combine puissance […]<\/p>\n","protected":false},"featured_media":11006,"comment_status":"open","ping_status":"closed","template":"","meta":[],"product_brand":[842],"product_cat":[750],"product_tag":[],"class_list":{"0":"post-11005","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_brand-ts-optics","7":"product_cat-ritchey-chretien","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\/11005","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=11005"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/deep-space-astronomy.ch\/en\/wp-json\/wp\/v2\/media\/11006"}],"wp:attachment":[{"href":"https:\/\/deep-space-astronomy.ch\/en\/wp-json\/wp\/v2\/media?parent=11005"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/deep-space-astronomy.ch\/en\/wp-json\/wp\/v2\/product_brand?post=11005"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/deep-space-astronomy.ch\/en\/wp-json\/wp\/v2\/product_cat?post=11005"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/deep-space-astronomy.ch\/en\/wp-json\/wp\/v2\/product_tag?post=11005"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}