{"id":7228,"date":"2025-04-26T16:17:54","date_gmt":"2025-04-26T14:17:54","guid":{"rendered":"https:\/\/deep-space-astronomy.ch\/?post_type=product&#038;p=7228"},"modified":"2025-09-17T15:41:25","modified_gmt":"2025-09-17T13:41:25","slug":"filtre-planetaire-antlia-u-venus","status":"publish","type":"product","link":"https:\/\/deep-space-astronomy.ch\/en\/product\/filtre-planetaire-antlia-u-venus\/","title":{"rendered":"Antlia U-Venus planetary filter"},"content":{"rendered":"<h3 style=\"text-align: center;\">Antlia U-Venus filter<\/h3>\n<p>The Antlia U-Venus filter is designed to capture the cloud structure of Venus and Jupiter in the ultraviolet spectrum. Using the latest dielectric coating technology, it offers high UV transmission while blocking the visible stray frequencies that usually drown out cloud detail in conventional sensors. This filter is dedicated to astronomical photography, not visual observation.<\/p>\n<h3>Key features<\/h3>\n<ul>\n<li>Transmission higher than 80% in critical UV bands<\/li>\n<li>OD3 suppression (\u22650.001) of spurious wavelengths from 200nm to 1050nm<\/li>\n<li>One-piece, unglued optical substrate<\/li>\n<li>Double-sided polished surface for \u03bb\/4 wave flatness<\/li>\n<li>Surface quality: 60\/40 (MIL-O-13830 standard)<\/li>\n<li>Parallelism less than 30 arcsec<\/li>\n<li>Double-sided dielectric multilayer coating<\/li>\n<li>Anti-halo design for bright stars<\/li>\n<\/ul>\n<h3>Ideal applications<\/h3>\n<ul>\n<li>UV imaging of Venus' cloud structure<\/li>\n<li>Capturing UV details on Jupiter and other planets<\/li>\n<li>UV photography outside astronomy: flora, plant health, insects, forensic investigations<\/li>\n<\/ul>\n<h3>Recommendations for use<\/h3>\n<ul>\n<li>Remove all UV\/IR filters from planetary cameras to maximize UV transmission<\/li>\n<li>Allow for longer exposure times in the UV range, as sensor sensitivity decreases sharply below 400nm.<\/li>\n<li>Using cameras specially modified for UV photography with DSLRs<\/li>\n<li>Avoid use with standard electronic flash units (low UV emission useful)<\/li>\n<\/ul>\n<h3>Technical specifications<\/h3>\n<ul>\n<li>Format: 1.25\u2033 mounted (M28.5\u00d70.6)<\/li>\n<li>Thickness: 2mm \u00b1 0.05mm<\/li>\n<li>Average transmission (Tave) : &gt;80%<\/li>\n<li>OD3 suppression between 200-1050nm outside the targeted UV band<\/li>\n<\/ul>\n<h3>Bracket design<\/h3>\n<ul>\n<li>Ultra-thin cell to maximize useful aperture<\/li>\n<li>Durable black anodized finish<\/li>\n<li>Durable, fade-free laser engraving<\/li>\n<\/ul>\n<h3>Cautions and warnings<\/h3>\n<ul>\n<li><strong style=\"color: red;\">Do not use for solar observation.<\/strong><\/li>\n<li><strong style=\"color: red;\">Forbidden for all UV visual observation.<\/strong><\/li>\n<li>This filter is reserved exclusively for photographic imaging.<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>","protected":false},"excerpt":{"rendered":"<p>Filtre Antlia U-Venus Le filtre Antlia U-Venus est con\u00e7u pour capturer la structure nuageuse de V\u00e9nus et Jupiter dans le spectre ultraviolet. Utilisant les derni\u00e8res technologies de rev\u00eatement di\u00e9lectrique, il offre une transmission UV \u00e9lev\u00e9e tout en bloquant les fr\u00e9quences parasites visibles qui noient habituellement les d\u00e9tails des nuages dans les capteurs classiques. Ce filtre [&hellip;]<\/p>\n","protected":false},"featured_media":7229,"comment_status":"open","ping_status":"closed","template":"","meta":[],"product_brand":[791],"product_cat":[780,804],"product_tag":[],"class_list":["post-7228","product","type-product","status-publish","has-post-thumbnail","product_brand-antlia","product_cat-filtres-bande-etroite","product_cat-filtres-planetaires","first","on_supplier","taxable","shipping-taxable","purchasable","product-type-simple"],"_links":{"self":[{"href":"https:\/\/deep-space-astronomy.ch\/en\/wp-json\/wp\/v2\/product\/7228","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/deep-space-astronomy.ch\/en\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/deep-space-astronomy.ch\/en\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/deep-space-astronomy.ch\/en\/wp-json\/wp\/v2\/comments?post=7228"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/deep-space-astronomy.ch\/en\/wp-json\/wp\/v2\/media\/7229"}],"wp:attachment":[{"href":"https:\/\/deep-space-astronomy.ch\/en\/wp-json\/wp\/v2\/media?parent=7228"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/deep-space-astronomy.ch\/en\/wp-json\/wp\/v2\/product_brand?post=7228"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/deep-space-astronomy.ch\/en\/wp-json\/wp\/v2\/product_cat?post=7228"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/deep-space-astronomy.ch\/en\/wp-json\/wp\/v2\/product_tag?post=7228"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}