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	<title>Comments on: flash &amp; ambient light &#8211; reverse engineering an image</title>
	<atom:link href="http://neilvn.com/tangents/2010/04/13/flash-ambient-light-reverse-engineered/feed/" rel="self" type="application/rss+xml" />
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	<description>photography by Neil van Niekerk</description>
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	<item>
		<title>By: Stephen</title>
		<link>http://neilvn.com/tangents/2010/04/13/flash-ambient-light-reverse-engineered/#comment-6124</link>
		<dc:creator>Stephen</dc:creator>
		<pubDate>Mon, 19 Apr 2010 15:53:05 +0000</pubDate>
		<guid isPermaLink="false">http://neilvn.com/tangents/?p=2898#comment-6124</guid>
		<description>Josh,
Fine photo there.  I like how there is a bluish neon-like lighting effect on the right, but it is created using color balance changes. :-)

Neil,
Excellent reverse engineering of Josh&#039;s photo.  :-)</description>
		<content:encoded><![CDATA[<p>Josh,<br />
Fine photo there.  I like how there is a bluish neon-like lighting effect on the right, but it is created using color balance changes. :-)</p>
<p>Neil,<br />
Excellent reverse engineering of Josh&#8217;s photo.  :-)</p>
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	<item>
		<title>By: Jan Bakker</title>
		<link>http://neilvn.com/tangents/2010/04/13/flash-ambient-light-reverse-engineered/#comment-6117</link>
		<dc:creator>Jan Bakker</dc:creator>
		<pubDate>Mon, 19 Apr 2010 08:25:49 +0000</pubDate>
		<guid isPermaLink="false">http://neilvn.com/tangents/?p=2898#comment-6117</guid>
		<description>Josh, thanks for the good explanation !!!!

Jan</description>
		<content:encoded><![CDATA[<p>Josh, thanks for the good explanation !!!!</p>
<p>Jan</p>
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		<title>By: Josh Lynn</title>
		<link>http://neilvn.com/tangents/2010/04/13/flash-ambient-light-reverse-engineered/#comment-6114</link>
		<dc:creator>Josh Lynn</dc:creator>
		<pubDate>Mon, 19 Apr 2010 03:19:57 +0000</pubDate>
		<guid isPermaLink="false">http://neilvn.com/tangents/?p=2898#comment-6114</guid>
		<description>So,  in bridge I opened the raw folder of that shoot..

&lt;a href=&quot;http://neilvn.com/tangents/images/guest/joshlynn/JL-Danielle-3up.jpg&quot; rel=&quot;nofollow&quot;&gt;&lt;strong&gt;Here you can see the sequence,  the middle image is the one used for the blog post&lt;/strong&gt;&lt;/a&gt;.

The last one, the flash did not fire because someone else robbed me. :)

So,  I cropped it..  and as you can see these are the untouched raw files in bridge.  So I added some contract and saturation to that final image.   If you look at that shadow in the background.. the SUN is just peeking over the building (or about to drop behind it), so the shadow is the building.

Josh</description>
		<content:encoded><![CDATA[<p>So,  in bridge I opened the raw folder of that shoot..</p>
<p><a href="http://neilvn.com/tangents/images/guest/joshlynn/JL-Danielle-3up.jpg" rel="nofollow"><strong>Here you can see the sequence,  the middle image is the one used for the blog post</strong></a>.</p>
<p>The last one, the flash did not fire because someone else robbed me. :)</p>
<p>So,  I cropped it..  and as you can see these are the untouched raw files in bridge.  So I added some contract and saturation to that final image.   If you look at that shadow in the background.. the SUN is just peeking over the building (or about to drop behind it), so the shadow is the building.</p>
<p>Josh</p>
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		<title>By: Neil vN</title>
		<link>http://neilvn.com/tangents/2010/04/13/flash-ambient-light-reverse-engineered/#comment-6107</link>
		<dc:creator>Neil vN</dc:creator>
		<pubDate>Sun, 18 Apr 2010 15:39:30 +0000</pubDate>
		<guid isPermaLink="false">http://neilvn.com/tangents/?p=2898#comment-6107</guid>
		<description>&lt;blockquote&gt;Jan, since Josh is a wedding photographer, I know he would keep his cameras synced to each other and at the correct time.  Perhaps he hadn&#039;t adjusted for Daylight Savings Time .. I don&#039;t know.  Even if so, it would be one hour we&#039;d be quibbling about then.  And ultimately, it wouldn&#039;t really affect the explanation of the setup here,.

As for the placement of the shadows as you question there, I can&#039;t say more than it just is how it appears.  The image is pretty much straight out of camera. 

Neil vN&lt;/blockquote&gt;</description>
		<content:encoded><![CDATA[<blockquote><p>Jan, since Josh is a wedding photographer, I know he would keep his cameras synced to each other and at the correct time.  Perhaps he hadn&#8217;t adjusted for Daylight Savings Time .. I don&#8217;t know.  Even if so, it would be one hour we&#8217;d be quibbling about then.  And ultimately, it wouldn&#8217;t really affect the explanation of the setup here,.</p>
<p>As for the placement of the shadows as you question there, I can&#8217;t say more than it just is how it appears.  The image is pretty much straight out of camera. </p>
<p>Neil vN</p></blockquote>
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		<title>By: Jan Bakker</title>
		<link>http://neilvn.com/tangents/2010/04/13/flash-ambient-light-reverse-engineered/#comment-6103</link>
		<dc:creator>Jan Bakker</dc:creator>
		<pubDate>Sun, 18 Apr 2010 08:48:55 +0000</pubDate>
		<guid isPermaLink="false">http://neilvn.com/tangents/?p=2898#comment-6103</guid>
		<description>Hi Josh,


The image of the sun in de first window of the shop tell me
that it is possible that the time of your photo is n&#039;t 4:18 pm ,but earlier
Is that correct ?

On the left side of the last window, behind danielle, there is a dark long
shadow. I think of the trunk of the tree on the photo.
How is that possible with one light ??

Please, will you explain me  the sharp edge of the shadow 
on the top of the photo, right above the head of danielle.

Jan</description>
		<content:encoded><![CDATA[<p>Hi Josh,</p>
<p>The image of the sun in de first window of the shop tell me<br />
that it is possible that the time of your photo is n&#8217;t 4:18 pm ,but earlier<br />
Is that correct ?</p>
<p>On the left side of the last window, behind danielle, there is a dark long<br />
shadow. I think of the trunk of the tree on the photo.<br />
How is that possible with one light ??</p>
<p>Please, will you explain me  the sharp edge of the shadow<br />
on the top of the photo, right above the head of danielle.</p>
<p>Jan</p>
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		<title>By: Nina</title>
		<link>http://neilvn.com/tangents/2010/04/13/flash-ambient-light-reverse-engineered/#comment-6081</link>
		<dc:creator>Nina</dc:creator>
		<pubDate>Wed, 14 Apr 2010 19:32:00 +0000</pubDate>
		<guid isPermaLink="false">http://neilvn.com/tangents/?p=2898#comment-6081</guid>
		<description>I just love this kind of post, it&#039;s like a photo detective gamed! ;)</description>
		<content:encoded><![CDATA[<p>I just love this kind of post, it&#8217;s like a photo detective gamed! ;)</p>
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		<title>By: Neil vN</title>
		<link>http://neilvn.com/tangents/2010/04/13/flash-ambient-light-reverse-engineered/#comment-6080</link>
		<dc:creator>Neil vN</dc:creator>
		<pubDate>Wed, 14 Apr 2010 13:43:00 +0000</pubDate>
		<guid isPermaLink="false">http://neilvn.com/tangents/?p=2898#comment-6080</guid>
		<description>&lt;blockquote&gt;Cham .. repost in the &lt;a href=&quot;http://www.flickr.com/groups/flash-photography/&quot; rel=&quot;nofollow&quot;&gt;Flickr group for flash photography&lt;/a&gt;.  This way there&#039;s a specific thread on your photo session, and we can keep the posts and articles here on the Tangents blog more on-topic.  :) 

thanks 

Neil vN&lt;/blockquote&gt;</description>
		<content:encoded><![CDATA[<blockquote><p>Cham .. repost in the <a href="http://www.flickr.com/groups/flash-photography/" rel="nofollow">Flickr group for flash photography</a>.  This way there&#8217;s a specific thread on your photo session, and we can keep the posts and articles here on the Tangents blog more on-topic.  :) </p>
<p>thanks </p>
<p>Neil vN</p></blockquote>
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	<item>
		<title>By: Cham Kao</title>
		<link>http://neilvn.com/tangents/2010/04/13/flash-ambient-light-reverse-engineered/#comment-6077</link>
		<dc:creator>Cham Kao</dc:creator>
		<pubDate>Wed, 14 Apr 2010 07:39:19 +0000</pubDate>
		<guid isPermaLink="false">http://neilvn.com/tangents/?p=2898#comment-6077</guid>
		<description>Hi Neil,

I am always impressed with your work and have learned a lot from your postings.  I did a Maternity Photo shoot last week and wanted to get your critique on it. 

http://ckaophotography.com/p802345910

I used various lens on each shot. The EXIF is listed below of the pics.  I used 2 external flash 2 580ex: 1 is on top of the camera and the other one is usually positioned to hit the shadowed areas.

I shot this with a Canon Mark II

Any Critiques will be appreciated! I just want to know what to know what I could do to improve the images.

Thanks in advance!

Cham</description>
		<content:encoded><![CDATA[<p>Hi Neil,</p>
<p>I am always impressed with your work and have learned a lot from your postings.  I did a Maternity Photo shoot last week and wanted to get your critique on it. </p>
<p><a href="http://ckaophotography.com/p802345910">http://ckaophotography.com/p802345910</a></p>
<p>I used various lens on each shot. The EXIF is listed below of the pics.  I used 2 external flash 2 580ex: 1 is on top of the camera and the other one is usually positioned to hit the shadowed areas.</p>
<p>I shot this with a Canon Mark II</p>
<p>Any Critiques will be appreciated! I just want to know what to know what I could do to improve the images.</p>
<p>Thanks in advance!</p>
<p>Cham</p>
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		<title>By: Bruno Delzant</title>
		<link>http://neilvn.com/tangents/2010/04/13/flash-ambient-light-reverse-engineered/#comment-6076</link>
		<dc:creator>Bruno Delzant</dc:creator>
		<pubDate>Wed, 14 Apr 2010 07:19:42 +0000</pubDate>
		<guid isPermaLink="false">http://neilvn.com/tangents/?p=2898#comment-6076</guid>
		<description>As always very interessting article :-)</description>
		<content:encoded><![CDATA[<p>As always very interessting article :-)</p>
]]></content:encoded>
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		<title>By: Josh</title>
		<link>http://neilvn.com/tangents/2010/04/13/flash-ambient-light-reverse-engineered/#comment-6073</link>
		<dc:creator>Josh</dc:creator>
		<pubDate>Wed, 14 Apr 2010 06:06:29 +0000</pubDate>
		<guid isPermaLink="false">http://neilvn.com/tangents/?p=2898#comment-6073</guid>
		<description>John, 

Well,  Neil is correct that by going all manual my exposures are consistent..  But what I meant with &quot;TTL is not an option&quot; is I am using the Pocket Wizards that do not offer TTL.  (the standard plus II versions) 

But the reason I use them is that it takes the complications out of exposure..  I don&#039;t need to adjust exposure comp as my composition changes..  The model - light distance remains the same so the exposure remains the same. 

Or rephrased - If I was to use TTL..  my exposure would change if I went for a closeup  vs a full length because the camera would be doing the thinking.</description>
		<content:encoded><![CDATA[<p>John, </p>
<p>Well,  Neil is correct that by going all manual my exposures are consistent..  But what I meant with &#8220;TTL is not an option&#8221; is I am using the Pocket Wizards that do not offer TTL.  (the standard plus II versions) </p>
<p>But the reason I use them is that it takes the complications out of exposure..  I don&#8217;t need to adjust exposure comp as my composition changes..  The model &#8211; light distance remains the same so the exposure remains the same. </p>
<p>Or rephrased &#8211; If I was to use TTL..  my exposure would change if I went for a closeup  vs a full length because the camera would be doing the thinking.</p>
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