{"id":25121,"date":"2023-02-06T01:03:45","date_gmt":"2023-02-06T05:03:45","guid":{"rendered":"https:\/\/phsc.ca\/camera\/?p=25121"},"modified":"2023-02-06T00:39:03","modified_gmt":"2023-02-06T04:39:03","slug":"a-super-lens","status":"publish","type":"post","link":"https:\/\/phsc.ca\/camera\/a-super-lens\/","title":{"rendered":"a super lens"},"content":{"rendered":"<div id=\"attachment_25122\" style=\"width: 271px\" class=\"wp-caption alignleft\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-25122\" class=\"size-full wp-image-25122\" src=\"https:\/\/phsc.ca\/camera\/wp-content\/uploads\/2023\/02\/Rokkor_5cm_f2-0_front-sm.jpg\" alt=\"\" width=\"261\" height=\"255\" \/><p id=\"caption-attachment-25122\" class=\"wp-caption-text\">The 5cm f\/2 Super Rokkor lens c 1950s<\/p><\/div>\n<p><strong>Toronto<\/strong>. In the late 1950s, I volunteered to serve in Labrador on a then new Tropospheric Scatter telephone network joining a few remote towns and mines to the outside world.<\/p>\n<p>While training for the job, I bought my first 35mm camera &#8211; a Minolta Rangefinder camera equipped with a leaf shutter and a fixed 5cm f\/2 lens. Until I owned a camera made in Japan, I was unaware of the quality build and resolution of Japanese photographic products.<\/p>\n<p>The <a href=\"https:\/\/www.canonrangefinder.org\/Minolta_lenses.htm\">Super Rokkor lens<\/a> was coated and incredibly clear to my eyes. The image shown is courtesy of the <a href=\"https:\/\/www.canonrangefinder.org\/\">Canon Rangefinder web site<\/a>.<\/p>\n<p>A year or so later, I sold the camera and lens to buy a USSR made 35mm SLR, the Exakta VX IIa from Dresden, East Germany. I also bought two well made German Steinheil lenses and an equally well made French lens (an early retro-focus 28mm wide angle design that allowed the SLR mirror to move freely at the cost of severe geometric distortion).<\/p>\n<p>The Super Rokkor? Beautiful. Only later did I understand that even a &#8216;normal&#8217; prime lens for my SLR was slightly retro-focus in design affecting its resolution (if measured, but not especially evident in practical use) and focal length.<\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Toronto. In the late 1950s, I volunteered to serve in Labrador on a then new Tropospheric Scatter telephone network joining a few remote towns and mines to the outside world. While training for the job, I bought my first 35mm &hellip; <a href=\"https:\/\/phsc.ca\/camera\/a-super-lens\/\">Continue reading <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[24],"tags":[131,401,308],"class_list":["post-25121","post","type-post","status-publish","format-standard","hentry","category-camera","tag-japan","tag-lens","tag-minolta"],"_links":{"self":[{"href":"https:\/\/phsc.ca\/camera\/wp-json\/wp\/v2\/posts\/25121","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/phsc.ca\/camera\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/phsc.ca\/camera\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/phsc.ca\/camera\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/phsc.ca\/camera\/wp-json\/wp\/v2\/comments?post=25121"}],"version-history":[{"count":3,"href":"https:\/\/phsc.ca\/camera\/wp-json\/wp\/v2\/posts\/25121\/revisions"}],"predecessor-version":[{"id":25137,"href":"https:\/\/phsc.ca\/camera\/wp-json\/wp\/v2\/posts\/25121\/revisions\/25137"}],"wp:attachment":[{"href":"https:\/\/phsc.ca\/camera\/wp-json\/wp\/v2\/media?parent=25121"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/phsc.ca\/camera\/wp-json\/wp\/v2\/categories?post=25121"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/phsc.ca\/camera\/wp-json\/wp\/v2\/tags?post=25121"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}