{"id":107524,"date":"2026-04-28T11:38:35","date_gmt":"2026-04-28T09:38:35","guid":{"rendered":"https:\/\/www.telescoop.nl\/?post_type=product&p=107524"},"modified":"2026-04-28T11:42:48","modified_gmt":"2026-04-28T09:42:48","slug":"televue-ebx-2120-2-eyepiece-holder-extension","status":"publish","type":"product","link":"https:\/\/www.telescoop.nl\/en\/televue-ebx-2120-2-oculairhouder-verlengstuk\/","title":{"rendered":"TeleVue EBX-2120 \u2013 2\u2033 Eyepiece Holder Extension"},"content":{"rendered":"

TeleVue EBX-2120 \u2013 2\u2033 Eyepiece Holder Extension<\/h3>\n\n\n\n

The TeleVue EBX-2120<\/strong> is a solid 2\" extension<\/strong> for your focuser. This extension tube increases the available back focus and allows for 2\" eyepiece filters<\/strong> to use in combination with your eyepieces.<\/p>\n\n\n\n

The extension adds 1.2 inches (30.48 mm)<\/strong> Add extra length to the optical train. This may be necessary when you don't have enough focusing range or when combining accessories that require extra build length.<\/p>\n\n\n\n

\"TeleVue<\/figure>\n\n\n\n

More flexibility in your optical train<\/h3>\n\n\n\n

With this 2\" eyepiece holder extension<\/strong> Can you make complete eyepiece sets parafocal? This means that when switching eyepieces, you barely have to adjust the focuser - ideal during dark observing sessions.<\/p>\n\n\n\n

In addition, the extension bus offers the possibility to 2\" filters<\/strong> to assemble in a practical and safe way.<\/p>\n\n\n\n

\"TeleVue<\/figure>\n\n\n\n

Sturdy construction and perfect fit<\/h3>\n\n\n\n

As you would expect from TeleVue, the finish is precise and mechanically reliable. The fit in a 2\u2033 focuser<\/strong> is exact, so your accessories remain mounted stably and without play.<\/p>\n\n\n\n

What we recommend<\/h3>\n\n\n\n
    \n
  • For homofocal clamping, you need an extra fine adjustment ring per eyepiece.<\/li>\n\n\n\n
  • A suitable option is the\u00a0Baader Finetuning Stop Ring<\/strong><\/li>\n\n\n\n
  • Check in advance if you actually need extra back focus<\/li>\n<\/ul>\n\n\n\n

    What you can do with it<\/h3>\n\n\n\n
      \n
    • Additional\u00a0backfocus<\/strong>\u00a0create in your optical setup<\/li>\n\n\n\n
    • 2\" eyepiece filters<\/strong>\u00a0use in conjunction with your eyepieces<\/li>\n\n\n\n
    • Make eyepiece sets parfocal for faster switching<\/li>\n<\/ul>\n\n\n\n

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

      General<\/h3>\n\n\n\n
        \n
      • Type:<\/strong>\u00a0Adapter<\/li>\n\n\n\n
      • Design:<\/strong>\u00a0Extension<\/li>\n\n\n\n
      • Connection:<\/strong>\u00a02\u2033<\/li>\n\n\n\n
      • Extension<\/strong>\u00a01.2 inches (30.48 mm)<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

        The TeleVue EBX-2120 - 2\" eyepiece holder extension is supplied as a robust extension tube for additional backfocus and 2\" filter use.<\/p>","protected":false},"featured_media":107526,"comment_status":"open","ping_status":"closed","template":"","meta":{"_acf_changed":false},"product_brand":[1551],"product_cat":[56,499,469,3104],"product_tag":[],"class_list":["post-107524","product","type-product","status-publish","has-post-thumbnail","product_brand-televue","product_cat-telescoop-accessoires","product_cat-adapters","product_cat-astro-fotografie","product_cat-overige-astrofotografie-accessoires","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":107738,"url":"https:\/\/www.telescoop.nl\/en\/televue-imaging-system-2-mm-verlengstuk\/","url_meta":{"origin":107524,"position":0},"title":"TeleVue Imaging System 2 mm - 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