{"id":93172,"date":"2026-01-09T14:44:24","date_gmt":"2026-01-09T13:44:24","guid":{"rendered":"https:\/\/www.telescoop.nl\/?post_type=product&p=93172"},"modified":"2026-03-06T10:51:55","modified_gmt":"2026-03-06T09:51:55","slug":"omegon-step-down-ring-109mm-78mm","status":"publish","type":"product","link":"https:\/\/www.telescoop.nl\/en\/omegon-step-down-ring-109mm-78mm\/","title":{"rendered":"Omegon Step-Down Ring 109 mm to 78 mm (Adapter Ring)"},"content":{"rendered":"

Omegon Step-by-Step Ring - Connect your telescope without the hassle<\/strong>
With the Omegon Step Ring, you easily connect Newtonian telescopes with a 109 mm ring clamp to focusers with a 78 mm ring clamp. No improvisation, no loose adapters - just plug and focus instantly.<\/p>\n\n\n\n

Stable and reliable<\/strong>
The adapter consists of two parts that fit together perfectly. Part A fits into the 109 mm flange of your telescope, while Part B securely attaches the 78 mm focuser. Everything stays firmly in place, even with heavy eyepieces or cameras. This keeps your image clear and stable, without wobbling or shifting.<\/p>\n\n\n\n

\"Omegon<\/figure>\n\n\n\n

Easy to assemble<\/strong>
You don't need any tools, just the included set screws. Screw Part A to the telescope base, connect Part B to the focuser, and tighten them together via the M85 thread. Within minutes, everything is ready to use.<\/p>\n\n\n\n

What we recommend<\/strong>
\u2713 Newtonian telescopes with 109 mm ring clamp
\u2713 Focusers of 78 mm
\u2717 Not suitable for other types of telescopes or ring sizes
\u2713 Ideal for astrophotography setups or visual observation where a stable connection is crucial<\/p>\n\n\n\n

Specifications<\/h3>\n\n\n\n

Capacity<\/strong><\/p>\n\n\n\n

Feature<\/th>Description<\/th><\/tr><\/thead>
Free passage (mm)<\/td>75<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

Telescope connection<\/strong><\/p>\n\n\n\n

Feature<\/th>Description<\/th><\/tr><\/thead>
Ring clamp<\/td>109 mm<\/td><\/tr>
Other side connection<\/td>78 mm<\/td><\/tr>
Optical length (mm)<\/td>2<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

General<\/strong><\/p>\n\n\n\n

Feature<\/th>Description<\/th><\/tr><\/thead>
Material<\/td>Anodized aluminum<\/td><\/tr>
Width (mm)<\/td>114<\/td><\/tr>
Height (mm)<\/td>12<\/td><\/tr>
Color<\/td>Black<\/td><\/tr>
Weight (g)<\/td>130<\/td><\/tr>
External dimensions LxWxH (mm)<\/td>114\u00d7114\u00d712<\/td><\/tr><\/tbody><\/table><\/figure>","protected":false},"excerpt":{"rendered":"

Omegon Step Ring<\/span>\u00a0Comes with two-piece adapter made of black anodized aluminum, suitable for Newton telescopes with 109 mm flange and focusers with 78 mm clamp - includes M85 thread and 4 set screws for stable and accurate mounting.<\/span><\/p>","protected":false},"featured_media":99379,"comment_status":"open","ping_status":"closed","template":"","meta":{"_acf_changed":false},"product_brand":[126],"product_cat":[56,499],"product_tag":[],"class_list":["post-93172","product","type-product","status-publish","has-post-thumbnail","product_brand-omegon","product_cat-telescoop-accessoires","product_cat-adapters","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":93169,"url":"https:\/\/www.telescoop.nl\/en\/omegon-sct-adapter\/","url_meta":{"origin":93172,"position":0},"title":"Omegon SCT Adapter","author":"Info telescoop","date":"09-01-2026","format":false,"excerpt":"Omegon SCT adapter comes with black anodized ring of 31 mm length, 78 mm eyepiece connection and 5 M4 hex screws - 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