Visit TS-Optics GSO 10\u2033 Ritchey-Chr\u00e9tien (250 mm, 2000 mm, f\/8)<\/strong> with carbon truss tube<\/strong> is a dream instrument for astrophotography. Designed on the same principle as large professional telescopes, it offers a corrected field of view, exceptional focus stability and robust mechanics suitable for heavy setups.<\/p>\n The 10\u2033 RC makes it possible to operate sensors up to APS-C<\/strong> with no corrector, delivering razor-sharp images. For the full format<\/strong>In order to obtain a perfectly flat field, we recommend the use of an RC corrector. With the CCD47 reducer 0.67\u00d7<\/strong>the focal length is reduced from 2000 mm to around 1340 mm, and the f\/8 ratio to f\/5,36<\/strong>reducing exposure time by more than half, while widening the field of view.<\/p>\n The weight reduction is minimal (~500 g), but the focus stability<\/strong> temperature variations is incomparable. The carbon has virtually zero expansion, guaranteeing long, refocus-free sessions. The truss structure maintains collimation perfectly, whatever the position of the telescope, while facilitating ventilation.<\/p>\n An evolution of the classic Crayford, the Monorail 3\u2033<\/strong> is based on a solid stainless steel slide, preventing tilt even with heavy optical trains. It features a stroke of approx. 80 mm, a clear aperture of 68 mm, a 1:10 gear ratio for fine adjustment, 360\u00b0 rotation and dedicated threads (M77x0.75 female, M74x0.75 male, M68 internal) for optimum compatibility (correctors, OAG, heavy cameras).<\/p>\n Visit TS-Optics GSO 10\u2033 RC Pro Carbon Truss<\/strong> is a benchmark for deep-sky imaging: wide, corrected field, focusing stability thanks to carbon + quartz, robust mechanics with tiltable focuser and support for heavy optical trains. A telescope designed for the demanding astrophotographer aiming for results worthy of professionals.<\/p>","protected":false},"excerpt":{"rendered":" TS-Optics GSO 10″ RC Pro Carbone Truss 250\/2000 \u2013 L\u2019astrographe haut de gamme Le TS-Optics GSO 10″ Ritchey-Chr\u00e9tien (250 mm, 2000 mm, f\/8) avec tube carbone truss est un instrument de r\u00eave pour l\u2019astrophotographie. Con\u00e7u sur le m\u00eame principe que les grands t\u00e9lescopes professionnels, il offre un champ corrig\u00e9, une stabilit\u00e9 de focus exceptionnelle et […]<\/p>\n","protected":false},"featured_media":11001,"comment_status":"open","ping_status":"closed","template":"","meta":[],"product_brand":[842],"product_cat":[750],"product_tag":[],"class_list":{"0":"post-11000","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\/11000","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=11000"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/deep-space-astronomy.ch\/en\/wp-json\/wp\/v2\/media\/11001"}],"wp:attachment":[{"href":"https:\/\/deep-space-astronomy.ch\/en\/wp-json\/wp\/v2\/media?parent=11000"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/deep-space-astronomy.ch\/en\/wp-json\/wp\/v2\/product_brand?post=11000"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/deep-space-astronomy.ch\/en\/wp-json\/wp\/v2\/product_cat?post=11000"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/deep-space-astronomy.ch\/en\/wp-json\/wp\/v2\/product_tag?post=11000"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}Highlights<\/h3>\n
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Astrophotography<\/h3>\n
Why a carbon truss tube?<\/h3>\n
The MONORAIL 3\u2033 focuser<\/h3>\n
RC vs SCT\/Mak advantages<\/h3>\n
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Technical specifications<\/h3>\n
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\n Optical design<\/strong><\/td>\n Ritchey-Chr\u00e9tien (hyperbolic mirrors)<\/td>\n<\/tr>\n \n Opening<\/strong><\/td>\n 250 mm (10\u2033)<\/td>\n<\/tr>\n \n Focal length<\/strong><\/td>\n 2000 mm<\/td>\n<\/tr>\n \n Ratio f\/<\/strong><\/td>\n f\/8 (\u2248 f\/5.36 with reducer 0.67\u00d7)<\/td>\n<\/tr>\n \n Theoretical resolution<\/strong><\/td>\n 0,46\u2033<\/td>\n<\/tr>\n \n Mirrors<\/strong><\/td>\n Quartz, reflectivity 94 %<\/td>\n<\/tr>\n \n Backfocus<\/strong><\/td>\n \u2248210 mm from M117x1 thread or \u2248131 mm from 2\u2033 runner<\/td>\n<\/tr>\n \n Tube<\/strong><\/td>\n Carbon truss with internal baffles<\/td>\n<\/tr>\n \n Tube diameter<\/strong><\/td>\n \u2248420 mm<\/td>\n<\/tr>\n \n Tube length<\/strong><\/td>\n \u2248580 mm (with focuser)<\/td>\n<\/tr>\n \n Weight<\/strong><\/td>\n \u224816.5 kg (including focuser) + 1 kg focuser<\/td>\n<\/tr>\n \n Secondary obstruction<\/strong><\/td>\n -<\/td>\n<\/tr>\n \n Focuser<\/strong><\/td>\n MONORAIL 3\u2033 microfocuser, load capacity 5 kg<\/td>\n<\/tr>\n \n Connections<\/strong><\/td>\n 2\u2033 & 1,25\u2033 + M77x0.75 female \/ M74x0.75 male \/ M68 internal threads<\/td>\n<\/tr>\n \n Dovetails<\/strong><\/td>\n 2\u00d7 Losmandy style<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n In the box<\/h3>\n
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In a nutshell<\/h3>\n