{"id":15577,"date":"2025-07-10T10:30:14","date_gmt":"2025-07-10T08:30:14","guid":{"rendered":"https:\/\/www.telescoop.nl\/?post_type=product&#038;p=15577"},"modified":"2026-08-25T15:09:49","modified_gmt":"2026-08-25T13:09:49","slug":"zwo-off-axis-guider","status":"publish","type":"product","link":"https:\/\/www.telescoop.nl\/en\/zwo-off-axis-guider\/","title":{"rendered":"ZWO Off-Axis-Guider"},"content":{"rendered":"<h2 class=\"wp-block-heading has-text-align-center\"><strong>ZWO Off-Axis-Guider: Guide Through Your Own Telescope<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">An off-axis guider captures a sliver of your main telescope's light path with a small prism and directs it to the guide camera. Guiding through the same optics as the imaging means no flexure, no separate guidescope, and therefore no differential tracking errors, especially at longer focal lengths.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">This ZWO OAG has a generous 8 x 8 mm prism, ensuring sufficient guide stars are available even at the edge of the field. With an optical length of only 16.5 mm, it fits into tight imaging trains with a filter wheel and cooled camera. Adapters for M48, T2, and 1.25 inches are included.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Features<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n\n<li>Large prism of 8 x 8 mm for sufficient guide stars<\/li>\n\n\n<li>Only 16.5 mm optical length<\/li>\n\n\n<li>No more autoguider needed: less weight and sources of error<\/li>\n\n\n<li>Including M48, T2, and 1.25 inch adapters<\/li>\n\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Compatibility<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Suitable for virtually any telescope and camera combination, from DSLRs to ASI. Combine with a mini guide camera such as the ASI120MM Mini or ASI220MM Mini in the 1.25 inch guide port. For full-frame sensors and long focal lengths, the OAG-L with a larger prism is the more spacious choice.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Specifications<\/h3>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td><strong>Prism<\/strong><\/td><td>8 x 8 mm<\/td><\/tr><tr><td><strong>Optical length<\/strong><\/td><td>16.5 mm<\/td><\/tr><tr><td><strong>Connections<\/strong><\/td><td>M48, T2 in 1.25 inch (adapters included)<\/td><\/tr><tr><td><strong>Guide camera<\/strong><\/td><td>1.25 inch, for example ASI Mini-series<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">The compact guiding solution of <a href=\"https:\/\/www.telescoop.nl\/en\/brands\/zwo\/\">ZWO<\/a> for sharp stars without extra viewing on the tube.<\/p>","protected":false},"excerpt":{"rendered":"<p>Compact off-axis guider with large 8 x 8 mm prism and only 16.5 mm optical length. Guiding through the main telescope, includes M48, T2, and 1.25 inch adapters.<\/p>","protected":false},"featured_media":21334,"comment_status":"open","ping_status":"closed","template":"","meta":{"_acf_changed":false},"product_brand":[123],"product_cat":[56,587,3110],"product_tag":[],"class_list":["post-15577","product","type-product","status-publish","has-post-thumbnail","product_brand-zwo","product_cat-telescoop-accessoires","product_cat-camera-accessoires","product_cat-off-axis-guiders-camera-rotators","product_shipping_class-licht","first","instock","taxable","shipping-taxable","purchasable","product-type-simple"],"bundled_by":[],"bundle_stock_status":"instock","bundle_stock_quantity":null,"bundle_virtual":false,"bundle_layout":"","bundle_add_to_cart_form_location":"","bundle_editable_in_cart":false,"bundle_sold_individually_context":"","bundle_item_grouping":"","bundle_min_size":"","bundle_max_size":"","bundle_price":[],"bundled_items":[],"bundle_sell_ids":[],"acf":[],"jetpack_sharing_enabled":true,"jetpack-related-posts":[{"id":15598,"url":"https:\/\/www.telescoop.nl\/en\/zwo-off-axis-guider-oag-l\/","url_meta":{"origin":15577,"position":0},"title":"ZWO Off-Axis-Guider OAG-L","author":"Info telescoop","date":"10-07-2025","format":false,"excerpt":"Large off-axis guider with a 12 x 12 mm prism for full-frame cameras and long focal lengths. Optical assembly measuring exactly 55 mm with EFW and a cooled camera, including an M48 tilt adapter.","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"ZWO Off-Axis-Guider OAG-L","src":"https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2025\/07\/ZWO-Off-Axis-Guider-OAG-L.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2025\/07\/ZWO-Off-Axis-Guider-OAG-L.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2025\/07\/ZWO-Off-Axis-Guider-OAG-L.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2025\/07\/ZWO-Off-Axis-Guider-OAG-L.jpg?resize=700%2C400&ssl=1 2x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2025\/07\/ZWO-Off-Axis-Guider-OAG-L.jpg?resize=1050%2C600&ssl=1 3x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2025\/07\/ZWO-Off-Axis-Guider-OAG-L.jpg?resize=1400%2C800&ssl=1 4x"},"classes":[]},{"id":26497,"url":"https:\/\/www.telescoop.nl\/en\/omegon-off-axis-guider-advanced-t2\/","url_meta":{"origin":15577,"position":1},"title":"Omegon Off-Axis Guider Advanced T2","author":"","date":"26-08-2025","format":false,"excerpt":"Off-axis guider with 2-inch telescope side, T2 camera side, and T2 guiding port with 7mm sliding focuser. Minimum build length 30mm.","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"Omegon Off-Axis Guider Advanced T2","src":"https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2025\/08\/Omegon-Off-Axis-Guider-Advanced-T2.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2025\/08\/Omegon-Off-Axis-Guider-Advanced-T2.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2025\/08\/Omegon-Off-Axis-Guider-Advanced-T2.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2025\/08\/Omegon-Off-Axis-Guider-Advanced-T2.jpg?resize=700%2C400&ssl=1 2x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2025\/08\/Omegon-Off-Axis-Guider-Advanced-T2.jpg?resize=1050%2C600&ssl=1 3x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2025\/08\/Omegon-Off-Axis-Guider-Advanced-T2.jpg?resize=1400%2C800&ssl=1 4x"},"classes":[]},{"id":13242,"url":"https:\/\/www.telescoop.nl\/en\/zwo-asi-174mm-mini\/","url_meta":{"origin":15577,"position":2},"title":"ZWO ASI 174MM Mini","author":"","date":"19-03-2025","format":false,"excerpt":"Monochrome guiding camera with the large Sony IMX174 sensor (5.86-micrometer pixels, 77% QE). The large sensor area always finds a guide star, making it ideal for off-axis guiding.","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2025\/03\/ZWO-Camera-ASI-174-MM-Mini-Mono-4.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2025\/03\/ZWO-Camera-ASI-174-MM-Mini-Mono-4.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2025\/03\/ZWO-Camera-ASI-174-MM-Mini-Mono-4.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2025\/03\/ZWO-Camera-ASI-174-MM-Mini-Mono-4.jpg?resize=700%2C400&ssl=1 2x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2025\/03\/ZWO-Camera-ASI-174-MM-Mini-Mono-4.jpg?resize=1050%2C600&ssl=1 3x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2025\/03\/ZWO-Camera-ASI-174-MM-Mini-Mono-4.jpg?resize=1400%2C800&ssl=1 4x"},"classes":[]},{"id":15674,"url":"https:\/\/www.telescoop.nl\/en\/zwo-spiraalvormige-focuser-125\/","url_meta":{"origin":15577,"position":3},"title":"ZWO Spiral Focuser 1.25\u2033","author":"","date":"10-07-2025","format":false,"excerpt":"Helical focuser 1.25 inch with 6 mm travel and 0.1 mm fine adjustment. Non-rotating focusing for off-axis guiders and compact camera setups.","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"ZWO Spiralf\u00f6rmiger Fokussierer 1,25\"","src":"https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2025\/07\/ZWO-Spiraalvormige-focuser-1-25-.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2025\/07\/ZWO-Spiraalvormige-focuser-1-25-.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2025\/07\/ZWO-Spiraalvormige-focuser-1-25-.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2025\/07\/ZWO-Spiraalvormige-focuser-1-25-.jpg?resize=700%2C400&ssl=1 2x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2025\/07\/ZWO-Spiraalvormige-focuser-1-25-.jpg?resize=1050%2C600&ssl=1 3x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2025\/07\/ZWO-Spiraalvormige-focuser-1-25-.jpg?resize=1400%2C800&ssl=1 4x"},"classes":[]},{"id":13293,"url":"https:\/\/www.telescoop.nl\/en\/zwo-camera-asi-220mm-mini-mono\/","url_meta":{"origin":15577,"position":4},"title":"ZWO Camera ASI 220MM Mini Mono","author":"","date":"19-03-2025","format":false,"excerpt":"Highly sensitive monochrome guiding camera with an SC2210 sensor: 92% quantum efficiency and readout noise as low as 0.6 electrons. The most advanced guider in the Mini line.","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2025\/03\/ZWO-Camera-ASI-220-MM-Mini-Mono.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2025\/03\/ZWO-Camera-ASI-220-MM-Mini-Mono.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2025\/03\/ZWO-Camera-ASI-220-MM-Mini-Mono.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2025\/03\/ZWO-Camera-ASI-220-MM-Mini-Mono.jpg?resize=700%2C400&ssl=1 2x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2025\/03\/ZWO-Camera-ASI-220-MM-Mini-Mono.jpg?resize=1050%2C600&ssl=1 3x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2025\/03\/ZWO-Camera-ASI-220-MM-Mini-Mono.jpg?resize=1400%2C800&ssl=1 4x"},"classes":[]},{"id":13229,"url":"https:\/\/www.telescoop.nl\/en\/zwo-camera-asi-120mm-mini-mono\/","url_meta":{"origin":15577,"position":5},"title":"ZWO Camera ASI 120MM Mini Mono","author":"","date":"19-03-2025","format":false,"excerpt":"Compact monochrome camera (AR0130CS, 1280 x 960, 3.75 micrometer) for autoguiding and moon and planet photography. Only 60 grams, with ST-4 port and 1.25 inch mount.","rel":"","context":"With 1 comment","block_context":{"text":"With 1 comment","link":"https:\/\/www.telescoop.nl\/en\/zwo-camera-asi-120mm-mini-mono\/#comments"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2025\/03\/ZWO-Camera-ASI-120MM-Mini-Mono.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2025\/03\/ZWO-Camera-ASI-120MM-Mini-Mono.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2025\/03\/ZWO-Camera-ASI-120MM-Mini-Mono.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2025\/03\/ZWO-Camera-ASI-120MM-Mini-Mono.jpg?resize=700%2C400&ssl=1 2x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2025\/03\/ZWO-Camera-ASI-120MM-Mini-Mono.jpg?resize=1050%2C600&ssl=1 3x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2025\/03\/ZWO-Camera-ASI-120MM-Mini-Mono.jpg?resize=1400%2C800&ssl=1 4x"},"classes":[]}],"_links":{"self":[{"href":"https:\/\/www.telescoop.nl\/en\/wp-json\/wp\/v2\/product\/15577","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.telescoop.nl\/en\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/www.telescoop.nl\/en\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/www.telescoop.nl\/en\/wp-json\/wp\/v2\/comments?post=15577"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.telescoop.nl\/en\/wp-json\/wp\/v2\/media\/21334"}],"wp:attachment":[{"href":"https:\/\/www.telescoop.nl\/en\/wp-json\/wp\/v2\/media?parent=15577"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/www.telescoop.nl\/en\/wp-json\/wp\/v2\/product_brand?post=15577"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/www.telescoop.nl\/en\/wp-json\/wp\/v2\/product_cat?post=15577"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/www.telescoop.nl\/en\/wp-json\/wp\/v2\/product_tag?post=15577"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}