{"id":14959,"date":"2025-07-03T13:17:29","date_gmt":"2025-07-03T11:17:29","guid":{"rendered":"https:\/\/www.telescoop.nl\/?post_type=product&#038;p=14959"},"modified":"2026-07-19T21:19:10","modified_gmt":"2026-07-19T19:19:10","slug":"omegon-plossl-eyepiece-4-mm-1-25-inches","status":"publish","type":"product","link":"https:\/\/www.telescoop.nl\/en\/omegon-plossl-oculair-4-mm-1-25-inch\/","title":{"rendered":"Omegon Pl\u00f6ssl 4mm Eyepiece (1.25 inch)"},"content":{"rendered":"<h2 class=\"wp-block-heading has-text-align-center\"><strong>Omegon Pl\u00f6ssl 4mm Eyepiece (1.25 inch): Classic four-element with sharp image<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">The Omegon Pl\u00f6ssl 4 mm is a classic eyepiece with four lens elements and multi-coating. The shortest focal length in the series, for maximum magnification in calm atmospheric conditions.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">With a telescope of 650mm focal length, 4mm gives a magnification of 163x, and at 900mm, 225x. Follow the rule of thumb of a maximum of 2x the aperture in millimeters: then lunar craters and planetary detail will remain sharp instead of blurry.<\/p>\n\n\n\n<figure class=\"wp-block-gallery has-nested-images columns-3 is-cropped wp-block-gallery-1 is-layout-flex wp-block-gallery-is-layout-flex\"><figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/www.telescoop.nl\/wp-content\/uploads\/2025\/07\/Omegon-Ploessl-oculair-4mm-1-25-.jpg\" alt=\"Omegon Plossl 4 mm eyepiece with 1.25 inch barrel\" title=\"\"><\/figure><figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/www.telescoop.nl\/wp-content\/uploads\/2025\/07\/Omegon-Ploessl-oculair-4mm-1-25-1.jpg\" alt=\"Omegon Plossl 4 mm eyepiece with 1.25 inch barrel\" title=\"\"><\/figure><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">Features<\/h3>\n\n\n\n<ul class=\"wp-block-list\"><li>Classic Pl\u00f6ssl design with four lens elements: sharp to the edge, even on faster telescopes<\/li><li>Apparent field of view of 50 degrees<\/li><li>Multicoating for high light transmission and good contrast<\/li><li>Rubber eyecup against stray light from the side<\/li><li>Filter thread for moon and color filters (1.25 inch)<\/li><\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Compatibility<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Fits any telescope with a 1.25-inch eyepiece holder: Newtonians, Dobsonian, refractors, and Schmidt-Cassegrains. Not suitable for smart telescopes without interchangeable eyepieces.<\/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>Focal length<\/strong><\/td><td>4 mm<\/td><\/tr><tr><td><strong>Apparent field of view<\/strong><\/td><td>50 degrees<\/td><\/tr><tr><td><strong>Optical design<\/strong><\/td><td>Pl\u00f6ssl, 4 lens elements, multicoated<\/td><\/tr><tr><td><strong>Mount<\/strong><\/td><td>1.25 inch (31.7 mm), with filter thread<\/td><\/tr><tr><td><strong>Eyecup<\/strong><\/td><td>rubber<\/td><\/tr><tr><td><strong>Series<\/strong><\/td><td>Omegon Pl\u00f6ssl<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">You can find more accessories for this merk at the <a href=\"\/en\/brands\/omegon\/\">Omegon merk Page<\/a>.<\/p>","protected":false},"excerpt":{"rendered":"<p>The Omegon Pl\u00f6ssl 4 mm eyepiece (1.25 inch) delivers a sharp, high-contrast image with four multicoated lens elements. Affordable classic with a rubber eyecup and filter thread.<\/p>","protected":false},"featured_media":20486,"comment_status":"open","ping_status":"closed","template":"","meta":{"_acf_changed":false},"product_brand":[126],"product_cat":[3130,56],"product_tag":[],"class_list":["post-14959","product","type-product","status-publish","has-post-thumbnail","product_brand-omegon","product_cat-oculairen-standaard-gezichtsveld","product_cat-telescoop-accessoires","product_shipping_class-licht","first","instock","taxable","shipping-taxable","purchasable","product-type-simple"],"bundled_by":["14722","14763","14719","14720","14721","14971","31792","31800"],"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":16009,"url":"https:\/\/www.telescoop.nl\/en\/omegon-plossl-oculair-32-mm-125\/","url_meta":{"origin":14959,"position":0},"title":"Omegon Pl\u00f6ssl 32mm Eyepiece (1.25 inch)","author":"","date":"18-07-2025","format":false,"excerpt":"The Omegon Pl\u00f6ssl 32mm Eyepiece (1.25 inch) delivers a sharp, high-contrast image with four multicoated lens elements. 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