{"id":4207,"date":"2010-07-27T19:51:20","date_gmt":"2010-07-27T23:51:20","guid":{"rendered":"https:\/\/neilvn.com\/tangents\/?p=4207"},"modified":"2017-08-11T17:09:35","modified_gmt":"2017-08-11T21:09:35","slug":"flash-ambient-light-reverse-engineered-2","status":"publish","type":"post","link":"https:\/\/neilvn.com\/tangents\/flash-ambient-light-reverse-engineered-2\/","title":{"rendered":"flash &#038; ambient light \u2013 reverse engineering an image (2)"},"content":{"rendered":"<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone\" src=\"https:\/\/neilvn.com\/tangents\/images\/guest\/joshlynn\/LisaEdtease618.jpg\" alt=\"\" width=\"900\" height=\"600\" \/><\/p>\n<h1>off camera flash for portraits of the bridal couple<\/h1>\n<p>My friend, <a href=\"http:\/\/www.joshlynn.com\" target=\"_blank\">Josh Lynn<\/a>, just posted this spectacular wedding photograph. \u00a0It does look like he used flash there, so I thought this would make a <a href=\"https:\/\/neilvn.com\/tangents\/flash-ambient-light-reverse-engineered\/\">another good example to see if we can &#8216;reverse engineer&#8217; a photograph<\/a> in terms of his settings and setup.<\/p>\n<p>I first had a guess at how he set this up; and then had a look at the EXIF data, and this revealed the true story. \u00a0See if you can decipher this image yourself, without scrolling down at first &#8230;<\/p>\n<p><!--more--><\/p>\n<p><strong>My first impression and educated guess, (before looking at the EXIF data):<\/strong><\/p>\n<p>It does look like <strong>low light levels<\/strong>, with flash being fired into the umbrella the couple is holding up. Since the flash would be behind the bridal couple, I would assume a wireless transmitter and receiver being used to fire the flash.<\/p>\n<p>The <strong>umbrella<\/strong> looks like a photographic umbrella. Look at the way the interior is drooping away from the backing at the top. \u00a0That double layer says to me it is a photographic umbrella &#8211; reflective layer inside, and black backing on the outside. \u00a0This would most likely make it a 60&#8243; umbrella if I have to go by the size of it in relation to the couple.<\/p>\n<p>The way the flash was triggered, makes me think it was a <strong>Radio Poppers<\/strong> set that controlled the Slave flash behind them. \u00a0Here&#8217;s why I think the Slave flash was remotely controlled by the Master slave, and not with old school Pocket Wizard units.<\/p>\n<p>For this setup, you&#8217;d either have to have done it a number of times before, so that the settings are predictable for old school non-controlled manual flash &#8230; or else you&#8217;d have to wirelessly control it from the on-camera speedlight. \u00a0Since there would be line-of-sight issues, it would have to be the Radio Popper units. \u00a0The other alternative &#8211; shouting instructions to an assistant crouching out of sight behind them about how to adjust the other flash &#8211; well, that just \u00a0seems too inelegant.<\/p>\n<p>So that would, in my estimation, make Slaved flash controlled via the Master flash on-camera, via Radio Poppers. \u00a0The Slaved flash is most likely set to manual output via the Master. \u00a0Of course, the slaved flash would have to be on a small light-stand. \u00a0Or perhaps the plastic hot-shoe foot that the flash came with. \u00a0However, there is no detectable spill &#8211; just the light in the umbrella. \u00a0That would make me think the Slaved flash was on a lightstand.<\/p>\n<p>Settings? \u00a0It looks like low light. Therefore I would guess a slow shutter speed and a tripod. \u00a0The aperture is probably a medium aperture. \u00a0Perhaps f5.6 .. perhaps f4 .. somewhere there.<\/p>\n<div id=\"divider1\"><\/div>\n<p><strong>Then I had a look at the EXIF data:<\/strong><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone\" src=\"https:\/\/neilvn.com\/tangents\/images\/guest\/joshlynn\/JL7_0902-exif.jpg\" alt=\"\" width=\"390\" height=\"401\" \/><\/p>\n<p>The EXIF data shows that this wasn&#8217;t low light, but very bright conditions.<\/p>\n<p>If we consider the Sunny 16 Rule &#8230; bright daylight being 1\/250 @ f11 @ 100 ISO &#8230; that would equate 1\/4000 @ f5 @ 320 ISO<\/p>\n<p>The equivalent Sunny 16 settings are very similar to what we see here. \u00a0Off by 1\/3rd stop in comparison. \u00a0But this is an overcast day, therefore Josh&#8217;s settings of 1\/4000 @ f5.6 @ 320 ISO looks about right to under-expose the sky like that for dramatic effect. \u00a0Now we just need that blitz of light in the umbrella to give this beautiful silhouette shot.<\/p>\n<div id=\"divider1\"><\/div>\n<p>Josh also sent me a second photo taken during the same session:<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone\" src=\"https:\/\/neilvn.com\/tangents\/images\/guest\/joshlynn\/LisaEdtease636.jpg\" alt=\"\" width=\"566\" height=\"850\" \/><\/p>\n<p>Looking at the EXIF data, we can easily see why the sky looks more neutral and less drama-filled. \u00a0Josh increased his ambient exposure by 2 stops. \u00a0(By dropping his shutter speed by 2 stops.)<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone\" src=\"https:\/\/neilvn.com\/tangents\/images\/guest\/joshlynn\/JL7_0884-exif.jpg\" alt=\"\" width=\"400\" height=\"405\" \/><\/p>\n<div id=\"divider1\"><\/div>\n<p>Anyone else want to have a go breaking this down? \u00a0Then we&#8217;ll see what Josh has to comment.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>off camera flash for portraits of the bridal couple My friend, Josh Lynn, just posted this spectacular wedding photograph. \u00a0It does look like he used flash there, so I thought this would make a another good example to see if we can &#8216;reverse engineer&#8217; a photograph in terms of his settings and setup. I first&nbsp;<a class=\"more-link\" href=\"https:\/\/neilvn.com\/tangents\/flash-ambient-light-reverse-engineered-2\/\" rel=\"nofollow\">Read more inside&#8230;<\/a><\/p>\n","protected":false},"author":1,"featured_media":30128,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"_genesis_hide_title":false,"_genesis_hide_breadcrumbs":false,"_genesis_hide_singular_image":false,"_genesis_hide_footer_widgets":false,"_genesis_custom_body_class":"","_genesis_custom_post_class":"","_genesis_layout":"","footnotes":""},"categories":[15,17,22,142],"tags":[871,54,56,880,112],"yst_prominent_words":[],"class_list":{"0":"post-4207","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-flash-photography","8":"category-general-photography","9":"category-lighting","10":"category-reverse-engineering-a-photo","11":"tag-flash-photography","12":"tag-flash-photography-technique","13":"tag-flash-photography-tips","14":"tag-off-camera-flash","15":"tag-off-camera-flash-photography","16":"entry"},"_links":{"self":[{"href":"https:\/\/neilvn.com\/tangents\/wp-json\/wp\/v2\/posts\/4207"}],"collection":[{"href":"https:\/\/neilvn.com\/tangents\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/neilvn.com\/tangents\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/neilvn.com\/tangents\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/neilvn.com\/tangents\/wp-json\/wp\/v2\/comments?post=4207"}],"version-history":[{"count":2,"href":"https:\/\/neilvn.com\/tangents\/wp-json\/wp\/v2\/posts\/4207\/revisions"}],"predecessor-version":[{"id":35165,"href":"https:\/\/neilvn.com\/tangents\/wp-json\/wp\/v2\/posts\/4207\/revisions\/35165"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/neilvn.com\/tangents\/wp-json\/wp\/v2\/media\/30128"}],"wp:attachment":[{"href":"https:\/\/neilvn.com\/tangents\/wp-json\/wp\/v2\/media?parent=4207"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/neilvn.com\/tangents\/wp-json\/wp\/v2\/categories?post=4207"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/neilvn.com\/tangents\/wp-json\/wp\/v2\/tags?post=4207"},{"taxonomy":"yst_prominent_words","embeddable":true,"href":"https:\/\/neilvn.com\/tangents\/wp-json\/wp\/v2\/yst_prominent_words?post=4207"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}