{"id":16639,"date":"2026-09-09T14:45:07","date_gmt":"2026-09-09T12:45:07","guid":{"rendered":"https:\/\/deep-space-astronomy.ch\/?post_type=product&p=16639"},"modified":"2026-09-09T14:59:58","modified_gmt":"2026-09-09T12:59:58","slug":"zwo-oag-l","status":"publish","type":"product","link":"https:\/\/deep-space-astronomy.ch\/en\/product\/zwo-oag-l\/","title":{"rendered":"ZWO OAG-L"},"content":{"rendered":"
\n

ZWO OAG-L: Large-Prism Optical Splitter for Astrophotography<\/h2>\n

Guide directly through your telescope with the
\nZWO OAG-L<\/strong>. This optical splitter splits off a portion
\nlight to power a guidance camera, while allowing
\nThe main camera takes a picture of your target. It avoids the
\ndifferential deflections between a separate guide ring
\nand the main instrument.<\/p>\n

Large prism and precise focusing<\/h3>\n

Sound 12 \u00d7 12 mm prism<\/strong> provides a useful insight
\n11.7 \u00d7 8.3 mm. The built-in helical focus mechanism makes it easy to
\nAdjusting the guide camera to the 31.75 mm slide.<\/p>\n

Interfaces and Connections<\/h3>\n\n\n\n\n\n\n
Telescope or corrector<\/th>\nM48 \u00d7 0.75 female thread via the adjustment plate
\nof the included M48 tilt head.<\/td>\n<\/tr>\n
Main camera or filter wheel<\/th>\nScrew-on mounting on a ZWO-compatible interface.
\nIntended for use specifically with filter wheels
\nCompatible with ZWO EFW 36 mm and 2\u2033.<\/td>\n<\/tr>\n
Guidance camera<\/th>\n31.75 mm (1.25\u2033) sliding camera mount with focus adjustment
\nHelical, compatible with ZWO ASI Mini cameras.<\/td>\n<\/tr>\n
Installation without a filter wheel<\/th>\nA specific adapter is required, depending on the camera.
\nZWO offers an M54 adapter for the 15 mm OAG-L,
\nSold separately, for compatible configurations.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Thickness and Backfocus Calculation<\/h3>\n

The body of the OAG-L measures 17.5 mm thick<\/strong>.
\nThe M48 turntable adds 5 mm<\/strong>, or
\n22.5 mm with this plate installed<\/strong>.
\nAdditional connections and the camera cable must
\n...should also be included in the calculation.<\/p>\n

For a corrector that imposes a backfocus of 55 mm, check
\nthe entire assembly, from its reference surface to the sensor.
\nFocus should be achievable simultaneously on
\nthe main camera and the guidance camera.<\/p>\n

Compatibility with the ASI585MC Pro<\/h3>\n

L'ASI585MC Pro<\/strong> requires a mechanical modification
\nspecific: its M42 connector does not attach directly to
\nthe rear interface of the OAG-L. The choice of parts depends on
\nthe corrector and the available spacing. The M54 adapter
\nBeing optional does not, in and of itself, constitute a guarantee of
\nCompatibility with this camera.<\/p>\n<\/section>","protected":false},"excerpt":{"rendered":"

ZWO OAG-L : diviseur optique \u00e0 grand prisme pour astrophotographie Guidez directement \u00e0 travers votre t\u00e9lescope avec le ZWO OAG-L. Ce diviseur optique pr\u00e9l\u00e8ve une partie de la lumi\u00e8re pour alimenter une cam\u00e9ra de guidage, tout en laissant la cam\u00e9ra principale photographier votre cible. Il \u00e9vite les flexions diff\u00e9rentielles entre une lunette de guidage s\u00e9par\u00e9e […]<\/p>\n","protected":false},"featured_media":16640,"comment_status":"open","ping_status":"closed","template":"","meta":[],"product_brand":[893],"product_cat":[606],"product_tag":[],"class_list":["post-16639","product","type-product","status-publish","has-post-thumbnail","product_brand-zwo","product_cat-diviseurs-optiques-astrophotographie","first","on_supplier","taxable","shipping-taxable","purchasable","product-type-simple"],"_links":{"self":[{"href":"https:\/\/deep-space-astronomy.ch\/en\/wp-json\/wp\/v2\/product\/16639","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=16639"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/deep-space-astronomy.ch\/en\/wp-json\/wp\/v2\/media\/16640"}],"wp:attachment":[{"href":"https:\/\/deep-space-astronomy.ch\/en\/wp-json\/wp\/v2\/media?parent=16639"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/deep-space-astronomy.ch\/en\/wp-json\/wp\/v2\/product_brand?post=16639"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/deep-space-astronomy.ch\/en\/wp-json\/wp\/v2\/product_cat?post=16639"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/deep-space-astronomy.ch\/en\/wp-json\/wp\/v2\/product_tag?post=16639"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}