<?xml version="1.0" encoding="UTF-8"?>
<rss version="2.0"
	xmlns:content="http://purl.org/rss/1.0/modules/content/"
	xmlns:wfw="http://wellformedweb.org/CommentAPI/"
	xmlns:dc="http://purl.org/dc/elements/1.1/"
	xmlns:atom="http://www.w3.org/2005/Atom"
	xmlns:sy="http://purl.org/rss/1.0/modules/syndication/"
	xmlns:slash="http://purl.org/rss/1.0/modules/slash/"
	>

<channel>
	<title>Rolando Lopez Photoblog &#187; Strobist DC</title>
	<atom:link href="http://www.rolando-lopez.com/photo/category/meetup-groups/strobist-dc/feed/" rel="self" type="application/rss+xml" />
	<link>http://www.rolando-lopez.com/photo</link>
	<description>The world as I see it through the lens ...and some of my experiments</description>
	<lastBuildDate>Mon, 30 Aug 2010 13:07:38 +0000</lastBuildDate>
	<language>en</language>
	<sy:updatePeriod>hourly</sy:updatePeriod>
	<sy:updateFrequency>1</sy:updateFrequency>
	<generator>http://wordpress.org/?v=3.0.1</generator>
		<item>
		<title>Overpowering the Sun &#8211; Strobist DC Meetup</title>
		<link>http://www.rolando-lopez.com/photo/meetup-groups/strobist-dc/2010/08/overpowering-the-sun-strobist-dc-meetup/</link>
		<comments>http://www.rolando-lopez.com/photo/meetup-groups/strobist-dc/2010/08/overpowering-the-sun-strobist-dc-meetup/#comments</comments>
		<pubDate>Mon, 30 Aug 2010 12:30:06 +0000</pubDate>
		<dc:creator>Rolando</dc:creator>
				<category><![CDATA[Strobist DC]]></category>

		<guid isPermaLink="false">http://www.rolando-lopez.com/photo/?p=366</guid>
		<description><![CDATA[Yesterday Strobist DC met to talk about overpowering the sun and some of the techniques that can be used to achieve the technique. The meeting took place at the Meridian Hill Park, a beautiful park right in the middle of DC. We had a good time discussing different techniques and then we shoot using High [...]]]></description>
			<content:encoded><![CDATA[<p>Yesterday Strobist DC met to talk about overpowering the sun and some of the techniques that can be used to achieve the technique.</p>
<p>The meeting took place at the Meridian Hill Park, a beautiful park right in the middle of DC. We had a good time discussing different techniques and then we shoot using High Speed Sync and applying the Sunny 16 Rule with small strobes.</p>
<p>So, what the term overpowering the sun means? The answer may vary depending on who you ask. I interprete the term as this:</p>
<p>&#8220;To expose your subject matching or overpowering the ambient light, being the ambient light source, the sun.&#8221;</p>
<p>Let&#8217;s define it by examples:</p>
<p>First let&#8217;s take a look at a typical picture during daylight exposed for the subject.</p>
<div id="attachment_374" class="wp-caption aligncenter" style="width: 290px"><a href="http://www.rolando-lopez.com/photo/wp-content/uploads/SDC-OverPoweringSun09.jpg"><img class="size-full wp-image-374" title="Exposed for Subject " src="http://www.rolando-lopez.com/photo/wp-content/uploads/SDC-OverPoweringSun09_blog.jpg" alt="" width="280" height="420" /></a><p class="wp-caption-text">Exposed for Subject</p></div>
<p>The picture above is exposed for the subject but because we are under daylight the sky comes a bit over exposed, colors ar a bit flat, hence boring.</p>
<p>So, if I want to get a nicer sky color I need to lower my exposure. Like in the picture below.</p>
<div id="attachment_373" class="wp-caption aligncenter" style="width: 290px"><a href="http://www.rolando-lopez.com/photo/wp-content/uploads/SDC-OverPoweringSun08.jpg"><img class="size-full wp-image-373" title="Exposed for the Sky" src="http://www.rolando-lopez.com/photo/wp-content/uploads/SDC-OverPoweringSun08_blog.jpg" alt="Exposed for the Sky" width="280" height="420" /></a><p class="wp-caption-text">Exposed for the Sky</p></div>
<p>Now we get a nicer deep blue color in the sky but we loose our subject as it is way under exposed. (Note: the picture above is more under exposed than it should be for demonstration purposes).</p>
<p>We need to add our own light source in order to be able to balance with that ambient light or overpower it. By adding a single strobe I was able to overpower the ambient light (the sun) by just a notch giving the picture a much better contrast between the subject and the sky.</p>
<div id="attachment_370" class="wp-caption aligncenter" style="width: 290px"><a href="http://www.rolando-lopez.com/photo/wp-content/uploads/SDC-OverPoweringSun01.jpg"><img class="size-full wp-image-370" title="Overpowering the sun" src="http://www.rolando-lopez.com/photo/wp-content/uploads/SDC-OverPoweringSun01_blog.jpg" alt="Overpowering the sun" width="280" height="420" /></a><p class="wp-caption-text">Overpowering The Sun</p></div>
<p>In the picture above I under exposed the sky by just one stop to avoid under exposing too much the rest of the background. If you compare this picture with the first one above, you&#8217;ll notice the better contrast without any retouching. This was done by using a single portable strobe (Canon 580EX II) with a shoot through umbrella and a CTO gel.   Add another light source and you can turn that sky a very deep blue or use no modifier for a stronger light source.</p>
<p>There are a few ways you can achieve this technique.</p>
<ul>
<li><strong>Power </strong>
<ul>
<li>Using a <em>powerful lightsource</em> like a studio strobe will make things lot easier, especially if you are competing with the sun at noon.</li>
<li><em>Pros </em>
<ul>
<li>Easier to compete with the sun even in mid day.</li>
<li>You can use wide open apertures (e.g. f/2.8) as your flash will be able to compensate with its power</li>
</ul>
</li>
<li><em>Cons </em>
<ul>
<li>Heavier equipment to take to the field, so you may need assistance.</li>
<li>If in the field you need to find your own power source (e.g. Power generator or a Power pack)</li>
<li>Will get expensive. Of course, if you&#8217;re shooting for Sports Illustrated magazine cover, then, who cares?</li>
<li>Limited to the cameras highest sync speed</li>
</ul>
</li>
</ul>
</li>
</ul>
<div id="attachment_386" class="wp-caption aligncenter" style="width: 160px"><a href="http://www.rolando-lopez.com/photo/wp-content/uploads/pro-b_head.jpg"><img class="size-thumbnail wp-image-386" title="Profoto Pro-B head" src="http://www.rolando-lopez.com/photo/wp-content/uploads/pro-b_head-150x150.jpg" alt="Profoto Pro-B head" width="150" height="150" /></a><p class="wp-caption-text">Profoto Pro-B head 1200 Ws</p></div>
<div id="attachment_388" class="wp-caption aligncenter" style="width: 160px"><a href="http://www.rolando-lopez.com/photo/wp-content/uploads/productpage_pro-8a_2400_air.jpg"><img class="size-thumbnail wp-image-388" title="Profoto Pro-8A 2400 Air Generator" src="http://www.rolando-lopez.com/photo/wp-content/uploads/productpage_pro-8a_2400_air-150x150.jpg" alt="Profoto Pro-8A 2400 Air Generator" width="150" height="150" /></a><p class="wp-caption-text">Profoto Pro-8A 2400 Air Power Generator</p></div>
<ul>
<li><strong>High Speed Sync (HSS) </strong>
<ul>
<li>Your camera may have what is known as <em>High Speed Syncing</em>, if this is the case by using a HSS capable flash of the same brand you can overpower the sun. HSS allows your camera to use a flash at higher speeds than the camera top syncing speed which is normally caps at 1/250 of a sec. With HSS you can go to speeds of 1/8000 (depends on the camera) and still be able to use the flash to lit the subject. This is achived by firing lots of flashes during the time the shutter curtains are moving. This is a great feature, but until recently you were limited on the use of this feature. But now thanks to wireless triggers like the Pocket Wizard Flex and Mini we can make use of this great feature off camera in full daylight and even add light modifiers.</li>
<li><em>Cons </em>
<ul>
<li>You need to have a camera and flash(es) capable of HSS and they must be of the same brand as this is proprietary functionality.</li>
<li>If using off-camera flash during strong daylight the camera infrared system can fail. You can use wireless triggers and these can get expensive as you add more lights.</li>
<li>Since this is limited to your cameras manufacturer strobes, your light power is also limited.</li>
</ul>
</li>
<li><em>Pros </em>
<ul>
<li>You can use wide open apertures like f/2.8.</li>
<li>You can use high shutter speeds.</li>
<li>Is great for portraits or sports photography.</li>
</ul>
</li>
</ul>
</li>
</ul>
<div id="attachment_391" class="wp-caption aligncenter" style="width: 160px"><a href="http://www.rolando-lopez.com/photo/wp-content/uploads/Canon_Speedlite_580EX-II_back.png"><img class="size-thumbnail wp-image-391" title="Canon Speedlite 580EX II back" src="http://www.rolando-lopez.com/photo/wp-content/uploads/Canon_Speedlite_580EX-II_back-150x150.png" alt="Canon Speedlite 580EX II back" width="150" height="150" /></a><p class="wp-caption-text">Canon 580EX II w/ HSS</p></div>
<ul>
<li><strong>Sunny 16 Rule with small strobes </strong>
<ul>
<li>The <em>Sunny 16 Rule</em> says that &#8220;On a bright, sunny day, the correct exposure for any subject is f/16 at the shutter speed nearest to the reciprocal of the film speed&#8221;. Well we are on the digital days, so we can translate the film speed to our ISO. An example of the Sunny 16 Rule would be to have f/16 with a speed of 1/200 and a ISO of 200. Based on this rule this should guarantee a balanced exposure. Since small strobes like flash guns are not very powerful, we can use this rule to overpower the sun with those. We all know the photography rules are meant to be broken so depending on the power of our flash we will have to play with these numbers a bit. But it will serve as a good starting point.</li>
<li><em>Cons </em>
<ul>
<li>You are limited to small apertures (e.g. f/16)</li>
<li>Don&#8217;t try this at noon, strobes most likely won&#8217;t be powerful enough</li>
<li>Limited to the cameras highest sync speed</li>
</ul>
</li>
<li><em>Pros </em>
<ul>
<li>Relatively inexpensive</li>
<li>Light to carry for on-site jobs (everything needed can fit in a backpack)</li>
</ul>
</li>
</ul>
</li>
</ul>
<div id="attachment_389" class="wp-caption aligncenter" style="width: 160px"><a href="http://www.rolando-lopez.com/photo/wp-content/uploads/cononSpeedLights.jpg"><img class="size-thumbnail wp-image-389" title="Canon Speedlights" src="http://www.rolando-lopez.com/photo/wp-content/uploads/cononSpeedLights-150x150.jpg" alt="" width="150" height="150" /></a><p class="wp-caption-text">Speedlights</p></div>
<p>Also, always remember to leverage the equipment you have available. For instance, make use of your camera histogram which helps inmensely when shooting directly under the sun, turn on the high alert to view any over exposed areas in the picture, take advantage of your max camera sync speed and, of course, always shoot RAW.</p>
<p>Here&#8217;s another photo from the event after post-processing:</p>
<div id="attachment_372" class="wp-caption aligncenter" style="width: 290px"><a href="http://www.rolando-lopez.com/photo/wp-content/uploads/SDC-OverPoweringSun05-RL.jpg"><img class="size-full wp-image-372" title="Anastassia on Strobist DC" src="http://www.rolando-lopez.com/photo/wp-content/uploads/SDC-OverPoweringSun05-RL_blog.jpg" alt="Anastassia on Strobist DC" width="280" height="420" /></a><p class="wp-caption-text">Anastassia on Strobist DC</p></div>
<p>[<strong>Note</strong>: Big thanks to Anastassia (model above) &amp; her father Val, Mike, Phil &amp; Ninoska, all Strobist DC members for their help with the meetup and getting these shots]</p>
]]></content:encoded>
			<wfw:commentRss>http://www.rolando-lopez.com/photo/meetup-groups/strobist-dc/2010/08/overpowering-the-sun-strobist-dc-meetup/feed/</wfw:commentRss>
		<slash:comments>1</slash:comments>
		</item>
		<item>
		<title>Strobist DC Kickoff Meeting &#8211; Total Success!</title>
		<link>http://www.rolando-lopez.com/photo/lighting/2009/04/strobist-dc-kickoff-meeting-total-success/</link>
		<comments>http://www.rolando-lopez.com/photo/lighting/2009/04/strobist-dc-kickoff-meeting-total-success/#comments</comments>
		<pubDate>Mon, 20 Apr 2009 14:51:59 +0000</pubDate>
		<dc:creator>Rolando</dc:creator>
				<category><![CDATA[Lighting]]></category>
		<category><![CDATA[Lighting Experiments]]></category>
		<category><![CDATA[Meetup Groups]]></category>
		<category><![CDATA[Strobist DC]]></category>

		<guid isPermaLink="false">http://www.rolando-lopez.com/photo/?p=39</guid>
		<description><![CDATA[The first meeting of the Strobist DC meetup group was a total sucess.  We had a mixed crowd, from folks with lots of baggage in photography to those who are just starting, but we all had one thing in common, we want to learn more about off camera lighting techniques. As each member entered the [...]]]></description>
			<content:encoded><![CDATA[<p>The first meeting of the Strobist DC meetup group was a total sucess.  We had a mixed crowd, from folks with lots of baggage in photography to those who are just starting, but we all had one thing in common, we want to learn more about off camera lighting techniques.</p>
<p>As each member entered the room they were greet by us (me and my wife), then asked to take a sit at the hot couch.  The hot couch was surrounded by 3 flashes; each one with a different purpose. One to the left of the subject looking downwards lighting only the face by using a snoot. One behind the subject, lighting only the fireplace using two gels (orange and red) simulating that it was on. Another flash mounted on the camera (front of subject) pointing to the ceiling used for fill-in flash. Here are some if the results:</p>
<p> </p>
<div class="wp-caption alignnone" style="width: 250px"><a href="http://photos4.meetupstatic.com/photos/event/4/1/0/b/event_8236651.jpeg"><img class="       " title="Self Portrait" src="http://photos4.meetupstatic.com/photos/event/4/1/0/b/event_8236651.jpeg" alt="Self portrait at Strobist DC meetup group" width="240" height="360" /></a><p class="wp-caption-text">Self portrait @ Strobist DC kickoff</p></div>
<p><span id="more-39"></span></p>
<div class="wp-caption alignnone" style="width: 250px"><img title="Dianne - Portrait" src="http://photos2.meetupstatic.com/photos/event/4/1/0/3/event_8236643.jpeg" alt="Diannes portrait at Strobist DC Kickoff meeting" width="240" height="360" /><p class="wp-caption-text">Dianne&#39;s portrait @ Strobist DC Kickoff</p></div>
<div class="wp-caption alignnone" style="width: 250px"><img title="Todd Portrait" src="http://photos1.meetupstatic.com/photos/event/4/0/f/f/event_8236639.jpeg" alt="Todd at Strobist DC Kickoff Meeting" width="240" height="360" /><p class="wp-caption-text">Todd&#39;s Portrait @ Strobist DC kickoff</p></div>
<p> </p>
<div class="wp-caption alignnone" style="width: 370px"><a href="http://photos4.meetupstatic.com/photos/event/4/1/0/a/event_8236650.jpeg"><img class="  " title="The Girls" src="http://photos4.meetupstatic.com/photos/event/4/1/0/a/event_8236650.jpeg" alt="Girls Portrait @ Strobist DC Kickoff" width="360" height="240" /></a><p class="wp-caption-text">Girls&#39; Portrait @ Strobist DC Kickoff</p></div>
<p> </p>
<p> </p>
<p>The meeting went for about 3 hours.  We broke the ice by talking over Hors d&#8217;oeuvres &amp; wine (soda for the speaker).  Then I presented on basic lighting tools, techniques &amp; concepts. The presentation was very dynamic as members contributed to some of the topics and I was able to show most of the tools I mentioned. From there we procedded to build the snoot, which took us about 15-20 average to build using cereal boxes and/or foam sheets. Then everyone put it to the test right on the spot. Some of the results will be posted at the Strobist DC meetup group page (<a href="http://www.meetup.com/strobist/photos/" target="_blank">http://www.meetup.com/strobist/photos/</a>). I have posted more of the hot couch pictures there as well.</p>
<p>I look forward for the next meeting which I&#8217;ll be scheduling soon. Thanks to all of those who attended, shared and learned with us!</p>
]]></content:encoded>
			<wfw:commentRss>http://www.rolando-lopez.com/photo/lighting/2009/04/strobist-dc-kickoff-meeting-total-success/feed/</wfw:commentRss>
		<slash:comments>1</slash:comments>
		</item>
	</channel>
</rss>
