{"id":79,"date":"2015-02-01T09:32:36","date_gmt":"2015-02-01T15:32:36","guid":{"rendered":"http:\/\/light.elliottmccrory.com\/?p=79"},"modified":"2015-02-01T11:42:31","modified_gmt":"2015-02-01T17:42:31","slug":"tertiary-effects-diffraction","status":"publish","type":"post","link":"https:\/\/light.elliottmccrory.com\/?p=79","title":{"rendered":"Tertiary effects: Diffraction"},"content":{"rendered":"<p>Another tertiary effect that photographers are aware of is something called diffraction.\u00a0 This occurs when you have a very small aperture\u2014the light is actually diffracted by the iris in a way that can be seen in the photograph.\u00a0 Generally, this effect is not desirable since it affects all the light in the image\u2014nothing is perfectly sharp.<\/p>\n<p>Here is a photograph that was set up to demonstrate the subtle effect of diffraction.\u00a0 It was taken at several apertures, and the subject is a bit of US currency.<\/p>\n<p><a href=\"http:\/\/light.elliottmccrory.com\/wp-content\/uploads\/2015\/02\/diffraction.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-medium wp-image-80\" src=\"http:\/\/light.elliottmccrory.com\/wp-content\/uploads\/2015\/02\/diffraction-300x107.jpg\" alt=\"diffraction\" width=\"300\" height=\"107\" srcset=\"https:\/\/light.elliottmccrory.com\/wp-content\/uploads\/2015\/02\/diffraction-300x107.jpg 300w, https:\/\/light.elliottmccrory.com\/wp-content\/uploads\/2015\/02\/diffraction-1024x367.jpg 1024w, https:\/\/light.elliottmccrory.com\/wp-content\/uploads\/2015\/02\/diffraction-720x258.jpg 720w, https:\/\/light.elliottmccrory.com\/wp-content\/uploads\/2015\/02\/diffraction.jpg 1094w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/a><\/p>\n<p>It is a little hard to see, but the images have peak sharpness around f\/8 and they get slightly less sharp to the right.<\/p>\n<hr \/>\n<p>Next: <a title=\"Tertiary effects: Starburst\" href=\"http:\/\/light.elliottmccrory.com\/?p=82\">Starburst<\/a><\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Another tertiary effect that photographers are aware of is something called diffraction.\u00a0 This occurs when you have a very small aperture\u2014the light is actually diffracted by the iris in a way that can be seen in the photograph.\u00a0 Generally, this effect is not desirable since it affects all the light in the image\u2014nothing is perfectly&hellip;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[7],"tags":[],"class_list":["post-79","post","type-post","status-publish","format-standard","hentry","category-aperture"],"_links":{"self":[{"href":"https:\/\/light.elliottmccrory.com\/index.php?rest_route=\/wp\/v2\/posts\/79","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/light.elliottmccrory.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/light.elliottmccrory.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/light.elliottmccrory.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/light.elliottmccrory.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=79"}],"version-history":[{"count":2,"href":"https:\/\/light.elliottmccrory.com\/index.php?rest_route=\/wp\/v2\/posts\/79\/revisions"}],"predecessor-version":[{"id":122,"href":"https:\/\/light.elliottmccrory.com\/index.php?rest_route=\/wp\/v2\/posts\/79\/revisions\/122"}],"wp:attachment":[{"href":"https:\/\/light.elliottmccrory.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=79"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/light.elliottmccrory.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=79"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/light.elliottmccrory.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=79"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}