{"id":178363,"date":"2024-01-20T19:17:12","date_gmt":"2024-01-20T19:17:12","guid":{"rendered":"https:\/\/www.techweekmag.com\/?p=178363"},"modified":"2024-05-13T18:17:46","modified_gmt":"2024-05-13T18:17:46","slug":"astrhori-25mm-f-2-8-2x-5x-macro-lens-announced-for-mirrorless-cameras","status":"publish","type":"post","link":"https:\/\/www.stereoindex.com\/tech\/photo\/astrhori-25mm-f-2-8-2x-5x-macro-lens-announced-for-mirrorless-cameras\/","title":{"rendered":"AstrHori 25mm F\/2.8 2x-5x macro lens announced for mirrorless cameras"},"content":{"rendered":"<p>AstrHori has released a new advanced macro lens for most popular full-frame mirrorless cameras: Sony E\/FX\/RF\/Z\/L-mount.\u00a0The AstrHori 25mm F\/2.8 2x-5x lens weighs 474 grams and has 10 elements in 7 groups (two high refractive index elements and two low dispersion elements) in its optical design.<\/p>\n<p>The optical design of the AstrHori 25mm F\/2.8 2x-5x macro lens is as follows:<\/p>\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-287286\" src=\"https:\/\/www.stereoindex.com\/tech\/wp-content\/uploads\/2024\/01\/137_techweek.jpg\" alt=\"\" width=\"939\" height=\"567\" \/><\/figure>\n<p>The new lens has an available aperture range: F\/2.8-F\/16.\u00a0The aperture ring itself is controlled with clicks.\u00a0And the focusing ring is exclusively manual.<\/p>\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-287289\" src=\"https:\/\/www.stereoindex.com\/tech\/wp-content\/uploads\/2024\/01\/138_techweek.jpg\" alt=\"\" width=\"1024\" height=\"1024\" \/><\/figure>\n<p>Different magnification ratios are supported: 2x-5x.\u00a0In the first case, the viewing angle will be 20\u00b0, and in the second \u2013 9\u00b0.\u00a0The minimum focusing distance is: 2X (113 mm), 3X (137.8 mm), 4X (162 mm), 5X (186.4 mm).<\/p>\n<p>To change the magnification factor, the lens moves forward:<\/p>\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-287287\" src=\"https:\/\/www.stereoindex.com\/tech\/wp-content\/uploads\/2024\/01\/139_techweek.jpg\" alt=\"\" width=\"1024\" height=\"576\" \/><\/figure>\n<p>When fully extended, the lens increases in size quite seriously:<\/p>\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-287290\" src=\"https:\/\/www.stereoindex.com\/tech\/wp-content\/uploads\/2024\/01\/140_techweek.jpg\" alt=\"\" width=\"1024\" height=\"1024\" \/><\/figure>\n<p>The cost of the lens is $249. The company provides an illustration demonstrating the macro capabilities of the new AstrHori 25mm F\/2.8 2x-5x lens:<\/p>\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-287288\" src=\"https:\/\/www.stereoindex.com\/tech\/wp-content\/uploads\/2024\/01\/141_techweek.jpg\" alt=\"\" width=\"970\" height=\"600\" \/><\/figure>\n<p>Previously, the company released an updated\u00a0\u00a0AstrHori 28mm F\/13 2X macro\u00a0lens .\u00a0It has received several improvements over the previous version, released in 2022, and is suitable for all popular bayonet mounts: L-mount, Fujifilm X, Canon RF\/EF, Sony E, PL-mount, Z-mount, Nikon F.<\/p>\n<p>The lens is available for full-frame cameras and has a maximum magnification ratio of 2:1.\u00a0The minimum focusing distance is 8 mm.\u00a0The AstrHori 28mm F\/13 2X macro lens has a 7-blade aperture, as well as an optical design of 21 elements in 16 groups.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>AstrHori has released a new advanced macro lens for most popular full-frame mirrorless cameras: Sony E\/FX\/RF\/Z\/L-mount.\u00a0The AstrHori 25mm F\/2.8 2x-5x lens weighs 474 grams and has 10 elements in 7 groups (two high refractive index elements and two low dispersion elements) in its optical design. The optical design of the AstrHori 25mm F\/2.8 2x-5x macro [&hellip;] <a class=\"g1-link g1-link-more\" href=\"https:\/\/www.stereoindex.com\/tech\/photo\/astrhori-25mm-f-2-8-2x-5x-macro-lens-announced-for-mirrorless-cameras\/\">More<\/a><\/p>\n","protected":false},"author":10404,"featured_media":178364,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[651],"tags":[779],"class_list":{"0":"post-178363","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-photo","8":"tag-news"},"acf":[],"aioseo_notices":[],"amp_enabled":true,"_links":{"self":[{"href":"https:\/\/www.stereoindex.com\/tech\/wp-json\/wp\/v2\/posts\/178363","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.stereoindex.com\/tech\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.stereoindex.com\/tech\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.stereoindex.com\/tech\/wp-json\/wp\/v2\/users\/10404"}],"replies":[{"embeddable":true,"href":"https:\/\/www.stereoindex.com\/tech\/wp-json\/wp\/v2\/comments?post=178363"}],"version-history":[{"count":0,"href":"https:\/\/www.stereoindex.com\/tech\/wp-json\/wp\/v2\/posts\/178363\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.stereoindex.com\/tech\/wp-json\/wp\/v2\/media\/178364"}],"wp:attachment":[{"href":"https:\/\/www.stereoindex.com\/tech\/wp-json\/wp\/v2\/media?parent=178363"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.stereoindex.com\/tech\/wp-json\/wp\/v2\/categories?post=178363"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.stereoindex.com\/tech\/wp-json\/wp\/v2\/tags?post=178363"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}