{"id":151,"date":"2021-05-12T17:44:49","date_gmt":"2021-05-12T16:44:49","guid":{"rendered":"http:\/\/iso3200.org\/blog\/?page_id=151"},"modified":"2026-05-01T11:19:06","modified_gmt":"2026-05-01T10:19:06","slug":"mamiya-z-mount-lenses","status":"publish","type":"page","link":"https:\/\/iso3200.org\/blog\/references\/mamiya-z-mount-lenses\/","title":{"rendered":"Mamiya Z mount lenses"},"content":{"rendered":"\n<p>The Z mount is a lens mount designed by Mamiya in 1980 for 35mm film cameras. It is a bayonet mount with three tabs, mechanical aperture linkage, and electronic contacts, with a focal flange distance of 45.5mm. Lenses have an aperture ring, but it is not coupled mechanically; the aperture is controlled electronically by the camera, and the camera can override the aperture ring position.<\/p>\n\n\n\n<div class=\"wp-block-greenshift-blocks-infobox gspb_infoBox gspb_infoBox-id-gsbp-452880f\" id=\"gspb_infoBox-id-gsbp-452880f\"><div class=\"gs-box notice_type icon_type\"><div class=\"gs-box-icon\"><svg x=\"0px\" y=\"0px\" viewBox=\"0 0 486.463 486.463\"> <g> <g> <path d=\"M243.225,333.382c-13.6,0-25,11.4-25,25s11.4,25,25,25c13.1,0,25-11.4,24.4-24.4 C268.225,344.682,256.925,333.382,243.225,333.382z\"><\/path> <path d=\"M474.625,421.982c15.7-27.1,15.8-59.4,0.2-86.4l-156.6-271.2c-15.5-27.3-43.5-43.5-74.9-43.5s-59.4,16.3-74.9,43.4 l-156.8,271.5c-15.6,27.3-15.5,59.8,0.3,86.9c15.6,26.8,43.5,42.9,74.7,42.9h312.8 C430.725,465.582,458.825,449.282,474.625,421.982z M440.625,402.382c-8.7,15-24.1,23.9-41.3,23.9h-312.8 c-17,0-32.3-8.7-40.8-23.4c-8.6-14.9-8.7-32.7-0.1-47.7l156.8-271.4c8.5-14.9,23.7-23.7,40.9-23.7c17.1,0,32.4,8.9,40.9,23.8 l156.7,271.4C449.325,369.882,449.225,387.482,440.625,402.382z\"><\/path> <path d=\"M237.025,157.882c-11.9,3.4-19.3,14.2-19.3,27.3c0.6,7.9,1.1,15.9,1.7,23.8c1.7,30.1,3.4,59.6,5.1,89.7 c0.6,10.2,8.5,17.6,18.7,17.6c10.2,0,18.2-7.9,18.7-18.2c0-6.2,0-11.9,0.6-18.2c1.1-19.3,2.3-38.6,3.4-57.9 c0.6-12.5,1.7-25,2.3-37.5c0-4.5-0.6-8.5-2.3-12.5C260.825,160.782,248.925,155.082,237.025,157.882z\"><\/path> <\/g> <\/g> <\/svg><\/div><div class=\"gs-box-text\">\n<p>Mamiya Z-mount lenses should not be confused with <a href=\"https:\/\/iso3200.org\/blog\/references\/nikon-z-mount-lenses\/\" data-type=\"page\" data-id=\"1032\">Nikon Z-mount lenses<\/a>.<\/p>\n<\/div><\/div><\/div>\n\n\n\n<p class=\"has-very-light-gray-to-cyan-bluish-gray-gradient-background has-background\">Jump to: <strong><a href=\"#mamiya-sekor-e-lenses\">E lenses<\/a><\/strong>, <strong><a href=\"#mamiya-sekor-ef-lenses\">EF lenses<\/a><\/strong>, <strong><a href=\"#osawa-lenses\">Osawa lenses<\/a><\/strong>.<\/p>\n\n\n\n<div style=\"height:60px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<div class=\"wp-block-group\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\">\n<h2 class=\"wp-block-heading\" id=\"mamiya-sekor-e-lenses\">Mamiya-Sekor E lenses<\/h2>\n\n\n\n<p>Mamiya-Sekor-E <span class=\"has-inline-color has-vivid-red-color\">S<\/span> lenses are slightly restyled lenses to better fit the Mamiya ZM camera.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Mamiya-Sekor E <strong>28mm F2.8<\/strong><\/li>\n\n\n\n<li>Mamiya-Sekor E <strong>28mm F3.5<\/strong> [<span class=\"has-inline-color has-vivid-red-color\">S<\/span>]<\/li>\n\n\n\n<li>Mamiya-Sekor Zoom E <strong>28\u200d\u2013\u200d50mm F3.5\u200d\u2013\u200d4.5<\/strong><\/li>\n\n\n\n<li>Mamiya-Sekor E <strong>35mm F2.8<\/strong><\/li>\n\n\n\n<li>Mamiya-Sekor Zoom E <strong>35\u200d\u2013\u200d70mm F3.5\u200d\u2013\u200d4.5<\/strong><\/li>\n\n\n\n<li>Mamiya-Sekor Zoom E <strong>35\u200d\u2013\u200d105mm F3.5\u200d\u2013\u200d4.3<\/strong><\/li>\n\n\n\n<li>Mamiya-Sekor E <strong>50mm F1.4<\/strong><\/li>\n\n\n\n<li>Mamiya-Sekor E <strong>50mm F1.7<\/strong> [<span class=\"has-inline-color has-vivid-red-color\">S<\/span>]<\/li>\n\n\n\n<li>Mamiya-Sekor E <strong>50mm F2<\/strong> [<span class=\"has-inline-color has-vivid-red-color\">S<\/span>]<\/li>\n\n\n\n<li>Mamiya-Sekor E <strong>50mm F3.5<\/strong> Macro <mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-cyan-blue-color\">macro lens<\/mark><\/li>\n\n\n\n<li>Mamiya-Sekor Zoom E <strong>70\u200d\u2013\u200d150mm F3.8<\/strong><\/li>\n\n\n\n<li>Mamiya-Sekor Zoom E <strong>80\u200d\u2013\u200d200mm F3.8<\/strong><\/li>\n\n\n\n<li>Mamiya-Sekor Zoom E <strong>80\u200d\u2013\u200d200mm F4<\/strong><\/li>\n\n\n\n<li>Mamiya-Sekor E <strong>135mm F2.8<\/strong><\/li>\n\n\n\n<li>Mamiya-Sekor E <strong>135mm F3.5<\/strong><\/li>\n\n\n\n<li>Mamiya-Sekor E <strong>200mm F4<\/strong><\/li>\n\n\n\n<li>Mamiya-Sekor E <strong>300mm F4<\/strong><\/li>\n<\/ul>\n\n\n\n<div style=\"height:30px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-group\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\">\n<h2 class=\"wp-block-heading\" id=\"mamiya-sekor-ef-lenses\">Mamiya-Sekor EF lenses<\/h2>\n\n\n\n<p>EF lenses have an additional distance encoder built-in and pass focusing distance information to the body, enabling advanced flash automation.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Mamiya-Sekor EF <strong>35mm F2.8<\/strong><\/li>\n\n\n\n<li>Mamiya-Sekor EF <strong>50mm F1.4<\/strong><\/li>\n\n\n\n<li>Mamiya-Sekor EF <strong>50mm F1.7<\/strong><\/li>\n\n\n\n<li>Mamiya-Sekor EF <strong>135mm F2.8<\/strong><\/li>\n<\/ul>\n\n\n\n<div style=\"height:30px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-group\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\">\n<h2 class=\"wp-block-heading\" id=\"osawa-lenses\">Osawa lenses<\/h2>\n\n\n\n<p>Osawa was the only other manufacturer producing lenses in the Z mount in significant numbers. The same lenses were available in other mounts, as well. Osawa lenses often have colourful front markings, either yellow and white or orange and yellow, making them visually stand out.<\/p>\n\n\n\n<p>Some Osawa lenses have almost identical technical characteristics as Mamiya-Sekor-E lenses (except weight), indicating potential rebranding.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Osawa MC <strong>24mm F2.8<\/strong><\/li>\n\n\n\n<li>Osawa MC <strong>28mm F2.8<\/strong><\/li>\n\n\n\n<li>Osawa MC <strong>28\u201390mm F3.5\u20134.5<\/strong><\/li>\n\n\n\n<li>Osawa MC <strong>35\u201370mm F3.5\u20134.5<\/strong><\/li>\n\n\n\n<li>Osawa MC <strong>35\u2013105mm F3.5\u20134.5<\/strong><\/li>\n\n\n\n<li>Osawa MC <strong>60\u2013300mm F5.6<\/strong><\/li>\n\n\n\n<li>Osawa MC <strong>70\u2013150mm F3.8<\/strong><\/li>\n\n\n\n<li>Osawa MC <strong>70\u2013220mm F4.5<\/strong><\/li>\n\n\n\n<li>Osawa MC <strong>75\u2013260mm F4.5<\/strong><\/li>\n\n\n\n<li>Osawa MC <strong>80\u2013205mm F4.5<\/strong><\/li>\n\n\n\n<li>Osawa MC <strong>135mm F2.8<\/strong><\/li>\n\n\n\n<li>Osawa MC <strong>200mm F4<\/strong><\/li>\n\n\n\n<li>Osawa MC <strong>300mm F3.5<\/strong><\/li>\n\n\n\n<li>Osawa MC<strong> 400mm F5.6<\/strong><\/li>\n\n\n\n<li>Osawa MC<strong> 650mm F8.5<\/strong><\/li>\n<\/ul>\n\n\n\n<div style=\"height:30px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-group\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\">\n<h2 class=\"wp-block-heading\" id=\"references\">References<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><a href=\"https:\/\/mamiya-ze.joerg-mueck.de\/index2de.html\" target=\"_blank\" rel=\"noreferrer noopener\">Mamiya Sekor-Objektive<\/a> on Mamiya Fanpage at J\u00f6rg M\u00fcck.de<\/li>\n\n\n\n<li><a href=\"http:\/\/www.thecamerasite.lauro.fi\/08_Accessories_Lenses\/Pages\/lenses.htm\" target=\"_blank\" rel=\"noreferrer noopener\">Mamiya-Sekor Lenses<\/a> on The Camera Site<\/li>\n<\/ul>\n\n\n\n<div style=\"height:45px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n<\/div><\/div>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity is-style-wide\"\/>\n\n\n\n<p><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-light-green-cyan-color\">Last update: 1. 5. 2026.<\/mark><\/p>\n","protected":false},"excerpt":{"rendered":"<p>The Z mount is a lens mount designed by Mamiya in 1980 for 35mm film cameras. It is a bayonet mount with three tabs, mechanical aperture linkage, and electronic contacts, with a focal flange distance of 45.5mm. Lenses have an aperture ring, but it is &hellip;<\/p>\n","protected":false},"author":2,"featured_media":0,"parent":82,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_gspb_post_css":".gs-box{padding:20px;border-left:5px solid transparent;margin-bottom:25px}.gs-box-text>p{margin-bottom:20px;margin-top:0}.gs-box-text>p:last-of-type{margin-bottom:0}.gs-box.notice_type{color:#856404;background-color:#fff3cd;border-color:#ffeeba}.gs-box.notice_type svg{fill:#f7a000}.gs-box.icon_type{display:flex}.gs-box.icon_type .gs-box-icon{width:28px;min-width:28px}.gs-box.icon_type .gs-box-text{flex-grow:1;margin:0 15px}","inline_featured_image":false,"_import_markdown_pro_load_document_selector":0,"_import_markdown_pro_submit_text_textarea":"","jetpack_post_was_ever_published":false,"footnotes":""},"class_list":["post-151","page","type-page","status-publish","hentry"],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/iso3200.org\/blog\/wp-json\/wp\/v2\/pages\/151","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/iso3200.org\/blog\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/iso3200.org\/blog\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/iso3200.org\/blog\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/iso3200.org\/blog\/wp-json\/wp\/v2\/comments?post=151"}],"version-history":[{"count":18,"href":"https:\/\/iso3200.org\/blog\/wp-json\/wp\/v2\/pages\/151\/revisions"}],"predecessor-version":[{"id":5672,"href":"https:\/\/iso3200.org\/blog\/wp-json\/wp\/v2\/pages\/151\/revisions\/5672"}],"up":[{"embeddable":true,"href":"https:\/\/iso3200.org\/blog\/wp-json\/wp\/v2\/pages\/82"}],"wp:attachment":[{"href":"https:\/\/iso3200.org\/blog\/wp-json\/wp\/v2\/media?parent=151"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}