{"id":34072,"date":"2025-11-16T15:31:28","date_gmt":"2025-11-16T14:31:28","guid":{"rendered":"https:\/\/www.telescoop.nl\/?post_type=product&#038;p=34072"},"modified":"2026-03-04T16:49:39","modified_gmt":"2026-03-04T15:49:39","slug":"william-optics-105-148mm-bahtinov-focus-mask","status":"publish","type":"product","link":"https:\/\/staging.telescoop.nl\/en\/william-optics-105-148mm-bahtinov-focusmasker\/","title":{"rendered":"William Optics 105-148mm Bahtinov Focus Mask"},"content":{"rendered":"<h3 class=\"wp-block-heading\"><strong>Always sharp, even at faint stars<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">The William Optics 105-148mm focusing mask helps you focus quickly and accurately. It is made of high-quality acrylic glass with a light transmission of 92%. This keeps your image clear and sharp, even with faint stars.<\/p>\n\n\n\n<figure class=\"wp-block-gallery has-nested-images columns-default is-cropped wp-block-gallery-1 is-layout-flex wp-block-gallery-is-layout-flex\">\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" data-id=\"34073\" src=\"https:\/\/staging.telescoop.nl\/wp-content\/uploads\/2025\/11\/William-Optics-105-148mm-Focus-masker-Bahtinov-1.jpg\" alt=\"William Optics 105-148mm Focus mask Bahtinov of transparent acrylic glass with the three adjustable mounting pins.\" class=\"wp-image-34073\" title=\"\"><\/figure>\n<\/figure>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Clearer bending pattern<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">The imprint pattern of the mask is three times more pronounced than classic metal masks. This allows you to see the inflection more clearly and adjust the focus more quickly and precisely.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Easy to use<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">The mask fits telescopes from 105 to 148 mm in diameter. Simply place it over your telescope, and you're ready to focus. Thanks to the acrylic glass, you immediately notice the difference in clarity and contrast.<\/p>\n\n\n\n<figure class=\"wp-block-gallery has-nested-images columns-default is-cropped wp-block-gallery-2 is-layout-flex wp-block-gallery-is-layout-flex\">\n<figure class=\"wp-block-image aligncenter size-large\"><img decoding=\"async\" data-id=\"34074\" src=\"https:\/\/staging.telescoop.nl\/wp-content\/uploads\/2025\/11\/William-Optics-105-148mm-Focus-masker-Bahtinov-2.jpg\" alt=\"William Optics 105-148mm Focus mask Bahtinov illustration of focusing result with diffraction patterns.\" class=\"wp-image-34074\" title=\"\"><\/figure>\n<\/figure>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Specifications<\/strong><\/h3>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>General<\/strong><\/h4>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Feature<\/th><th>Description<\/th><\/tr><\/thead><tbody><tr><td>Color<\/td><td>Transparent<\/td><\/tr><tr><td>Material<\/td><td>Acrylic<\/td><\/tr><tr><td>Diameter (mm)<\/td><td>105-148<\/td><\/tr><tr><td>Type<\/td><td>Mask<\/td><\/tr><tr><td>Design<\/td><td>Focus Mask<\/td><\/tr><\/tbody><\/table><\/figure>","protected":false},"excerpt":{"rendered":"<p>William Optics 105-148mm Focus mask Bahtinov comes with adjustable mounting pins for telescopes from 105 to 148mm diameter. \u00a0<\/p>","protected":false},"featured_media":97501,"comment_status":"open","ping_status":"closed","template":"","meta":{"_acf_changed":false},"product_brand":[643],"product_cat":[3115,56],"product_tag":[],"class_list":["post-34072","product","type-product","status-publish","has-post-thumbnail","product_brand-william-optics","product_cat-focusing","product_cat-telescoop-accessoires","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":[],"_links":{"self":[{"href":"https:\/\/staging.telescoop.nl\/en\/wp-json\/wp\/v2\/product\/34072","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/staging.telescoop.nl\/en\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/staging.telescoop.nl\/en\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/staging.telescoop.nl\/en\/wp-json\/wp\/v2\/comments?post=34072"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/staging.telescoop.nl\/en\/wp-json\/wp\/v2\/media\/97501"}],"wp:attachment":[{"href":"https:\/\/staging.telescoop.nl\/en\/wp-json\/wp\/v2\/media?parent=34072"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/staging.telescoop.nl\/en\/wp-json\/wp\/v2\/product_brand?post=34072"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/staging.telescoop.nl\/en\/wp-json\/wp\/v2\/product_cat?post=34072"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/staging.telescoop.nl\/en\/wp-json\/wp\/v2\/product_tag?post=34072"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}