Designed for deep-sky astrophotography (galaxies, planetary nebulae) while remaining compact and lightweight, the The 6\u2033 RC delivers fine, regular stars<\/strong> with cameras up to APS-C<\/strong> The home is very affordable: about 159 mm from 2\u2033 runner<\/strong>. Do I need a corrector?<\/strong> \u2192 Up to APS-C, many users shoot without corrector. Can it be used for visuals?<\/strong> \u2192 Yes. The RC is designed for photography, but visually it offers Visit TS-Optics GSO 6\u2033 RC Pro<\/strong> condenses the essence of professional RCs into a lightweight, affordable format. TS-Optics GSO 6″ RC Pro 154\/1370 \u2013 Le petit Ritchey-Chr\u00e9tien qui pense grand Con\u00e7u pour l\u2019astrophotographie du ciel profond (galaxies, n\u00e9buleuses plan\u00e9taires) tout en restant compact et l\u00e9ger, le TS-Optics GSO 6″ Ritchey-Chr\u00e9tien (154 mm, 1370 mm, f\/9) offre un piqu\u00e9 homog\u00e8ne sur un grand champ, une mise au point stable et des temps de […]<\/p>\n","protected":false},"featured_media":10984,"comment_status":"open","ping_status":"closed","template":"","meta":[],"product_brand":[842],"product_cat":[750],"product_tag":[],"class_list":["post-10982","product","type-product","status-publish","has-post-thumbnail","product_brand-ts-optics","product_cat-ritchey-chretien","first","on_supplier","taxable","shipping-taxable","purchasable","product-type-simple"],"_links":{"self":[{"href":"https:\/\/deep-space-astronomy.ch\/en\/wp-json\/wp\/v2\/product\/10982","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=10982"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/deep-space-astronomy.ch\/en\/wp-json\/wp\/v2\/media\/10984"}],"wp:attachment":[{"href":"https:\/\/deep-space-astronomy.ch\/en\/wp-json\/wp\/v2\/media?parent=10982"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/deep-space-astronomy.ch\/en\/wp-json\/wp\/v2\/product_brand?post=10982"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/deep-space-astronomy.ch\/en\/wp-json\/wp\/v2\/product_cat?post=10982"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/deep-space-astronomy.ch\/en\/wp-json\/wp\/v2\/product_tag?post=10982"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
\nTS-Optics GSO 6\u2033 Ritchey-Chr\u00e9tien (154 mm, 1370 mm, f\/9)<\/strong> offers uniform sharpness over a wide field,
\nstable focus and short cooling times thanks to its open tube.
\nIts hyperbolic mirrors in fused silica<\/em> (quartz) with 94 % reflectivity treatment deliver
\nfine stars and sharp details, without lenses in the optical path.<\/p>\nHighlights to remember<\/h3>\n
\n
Why choose a 6\u2033 RC over a SCT\/Mak?<\/h3>\n
\n
Astrophotography performance<\/h3>\n
\n(without corrector). For larger sensors (full format), the addition of a dedicated RC corrector is recommended.
\nto optimize field flatness and illumination. 94 % coating and no front glass
\nenable more effective exhibitions<\/strong> than with permanent blade\/corrector systems.<\/p>\nFocus & backfocus: simple and flexible<\/h3>\n
\nVisit M90 bushings (50 mm + 2\u00d725 mm)<\/strong> are screwed between the focuser and the tube to position
\nyour optical train (angle drive, OAG, filter wheel, camera). Visit Crayford 2\u2033 dual-speed<\/strong>
\nensures fine, backlash-free MAP.<\/p>\nSensors, correctors & reducers<\/h3>\n
\n
\n(1370 mm \u00d7 0.67 \u2248 918 mm<\/strong>) \u2192 shorter exposures, wide field for diffuse nebulae\/galaxies.<\/li>\n<\/ul>\nTechnical specifications<\/h3>\n
\n\n
\n Optical design<\/strong><\/td>\n Ritchey-Chr\u00e9tien (primary & secondary hyperbolic)<\/td>\n<\/tr>\n \n Opening<\/strong><\/td>\n 154 mm (6\u2033)<\/td>\n<\/tr>\n \n Focal length<\/strong><\/td>\n 1370 mm<\/td>\n<\/tr>\n \n Ratio f\/<\/strong><\/td>\n f\/9 (\u2248 f\/6.0 with reducer 0.67\u00d7)<\/td>\n<\/tr>\n \n Theoretical resolution<\/strong><\/td>\n 0,76\u2033<\/td>\n<\/tr>\n \n Mirrors<\/strong><\/td>\n Quartz (fused silica<\/em>) - reflectivity 94 %<\/td>\n<\/tr>\n \n Backfocus<\/strong><\/td>\n \u2248159 mm from the 2\u2033 runner<\/td>\n<\/tr>\n \n Secondary obstruction<\/strong><\/td>\n 77 mm<\/td>\n<\/tr>\n \n Focuser<\/strong><\/td>\n Crayford 2\u2033 double speed + 1.25\u2033 adapter<\/td>\n<\/tr>\n \n Connection thread<\/strong><\/td>\n M90\u00d71 (between tube and focuser)<\/td>\n<\/tr>\n \n Dovetail<\/strong><\/td>\n Vixen-type dovetail (GP)<\/td>\n<\/tr>\n \n Tube diameter<\/strong><\/td>\n \u2248191 mm<\/td>\n<\/tr>\n \n Tube length<\/strong><\/td>\n \u2248500 mm (with focuser)<\/td>\n<\/tr>\n \n Weight<\/strong><\/td>\n \u22485.4 kg<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n In the box<\/h3>\n
\n
Recommended accessories (optional)<\/h3>\n
\n
Frequently asked questions<\/h3>\n
\nOn full-frame, a dedicated RC corrector is highly recommended for an impeccable field.<\/p>\n
\nvery fine stars and enhanced contrast (especially with good eyepieces and a 2\u2033 angled return). On the other hand, planetary photography really isn't its forte, due to its central obstruction.<\/p>\nIn brief<\/h3>\n
\nSharpness, MAP stability, naturally corrected field and simple integration: an excellent choice for
\nget started (or make serious progress) in medium-focus astrophotography<\/strong>, with room for improvement
\n(corrector, reducer, OAG, filter wheels) to suit your projects.<\/p>","protected":false},"excerpt":{"rendered":"