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	<title>Comments on: Filmmaker Profile: Cinematographer, John Leonetti &#8211; Shooting with RED</title>
	<atom:link href="http://hdfilmtools.com/2008/09/filmmaker-profile-cinematographer-john-leonetti-shooting-with-red/feed/" rel="self" type="application/rss+xml" />
	<link>http://hdfilmtools.com/2008/09/filmmaker-profile-cinematographer-john-leonetti-shooting-with-red/</link>
	<description>A Web Video Network for Digital Filmmakers</description>
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		<title>By: javier ugarte</title>
		<link>http://hdfilmtools.com/2008/09/filmmaker-profile-cinematographer-john-leonetti-shooting-with-red/comment-page-1/#comment-384</link>
		<dc:creator>javier ugarte</dc:creator>
		<pubDate>Tue, 09 Dec 2008 15:21:54 +0000</pubDate>
		<guid isPermaLink="false">http://hdfilmtools.com/?p=525#comment-384</guid>
		<description>very helpful that interview. thanks a lot for sharing!!</description>
		<content:encoded><![CDATA[<p>very helpful that interview. thanks a lot for sharing!!</p>
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		<title>By: Good Red Insights from A.S.C. Member John Leonetti &#171; Indie 2.0</title>
		<link>http://hdfilmtools.com/2008/09/filmmaker-profile-cinematographer-john-leonetti-shooting-with-red/comment-page-1/#comment-212</link>
		<dc:creator>Good Red Insights from A.S.C. Member John Leonetti &#171; Indie 2.0</dc:creator>
		<pubDate>Mon, 15 Sep 2008 15:51:26 +0000</pubDate>
		<guid isPermaLink="false">http://hdfilmtools.com/?p=525#comment-212</guid>
		<description>[...] Part 1 [...]</description>
		<content:encoded><![CDATA[<p>[...] Part 1 [...]</p>
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		<title>By: The Editblog &#187; Linkage: September 2008</title>
		<link>http://hdfilmtools.com/2008/09/filmmaker-profile-cinematographer-john-leonetti-shooting-with-red/comment-page-1/#comment-193</link>
		<dc:creator>The Editblog &#187; Linkage: September 2008</dc:creator>
		<pubDate>Tue, 09 Sep 2008 14:22:15 +0000</pubDate>
		<guid isPermaLink="false">http://hdfilmtools.com/?p=525#comment-193</guid>
		<description>[...] Film Tools has a two part (one, two) interview with John Leonetti, ASC on shooting [...]</description>
		<content:encoded><![CDATA[<p>[...] Film Tools has a two part (one, two) interview with John Leonetti, ASC on shooting [...]</p>
]]></content:encoded>
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		<title>By: Thomas Berglund</title>
		<link>http://hdfilmtools.com/2008/09/filmmaker-profile-cinematographer-john-leonetti-shooting-with-red/comment-page-1/#comment-189</link>
		<dc:creator>Thomas Berglund</dc:creator>
		<pubDate>Mon, 08 Sep 2008 21:50:14 +0000</pubDate>
		<guid isPermaLink="false">http://hdfilmtools.com/?p=525#comment-189</guid>
		<description>Interesting. Thanks for posting this :)

Here is a technical tip for future episodes.

I would recommend using a frame size where both width and height is divisible by 16 (mod16). That is because in MPEG compression, the frame is divided into macroblocks of 16x16 pixels. Read more about that here: http://tinyurl.com/6prh83 and here: http://tinyurl.com/5vby6x

The height &quot;405&quot; which is not divisible by 16 (http://www.google.com/search?q=405%2516), is what makes the 1px green line appear at the bottom of the frame.

By using mod16 frame sizes, not only will you get rid of the 1px green line, but you will get better quality and more efficient compression (and decoding).

Try one of these resolutions, for 16:9 aspect ratio (square pixels):
1280 x 720
1024 x 576
768 x 432
512 x 288

You can find these optimal resolutions programmatically by using &lt;a href=&quot;http://en.wikipedia.org/wiki/Modulo_operation&quot; rel=&quot;nofollow&quot;&gt;modulo operation&lt;/a&gt;.

&quot;In computing, the modulo operation finds the remainder of division of one number by another.&quot;

If the reminder of both width % 16 and height % 16 is 0, then you are good to go.

To calculate the optimal video bitrate, I would recommend having a look at Robert Reinhardt&#039;s bitrate calculator (just remember to set the codec to H.264): http://www.adobe.com/devnet/flash/apps/flv_bitrate_calculator/</description>
		<content:encoded><![CDATA[<p>Interesting. Thanks for posting this <img src='http://hdfilmtools.com/wp-includes/images/smilies/icon_smile.gif' alt=':)' class='wp-smiley' /> </p>
<p>Here is a technical tip for future episodes.</p>
<p>I would recommend using a frame size where both width and height is divisible by 16 (mod16). That is because in MPEG compression, the frame is divided into macroblocks of 16&#215;16 pixels. Read more about that here: <a href="http://tinyurl.com/6prh83" rel="nofollow">http://tinyurl.com/6prh83</a> and here: <a href="http://tinyurl.com/5vby6x" rel="nofollow">http://tinyurl.com/5vby6x</a></p>
<p>The height &#8220;405&#8243; which is not divisible by 16 (<a href="http://www.google.com/search?q=405%2516" rel="nofollow">http://www.google.com/search?q=405%2516</a>), is what makes the 1px green line appear at the bottom of the frame.</p>
<p>By using mod16 frame sizes, not only will you get rid of the 1px green line, but you will get better quality and more efficient compression (and decoding).</p>
<p>Try one of these resolutions, for 16:9 aspect ratio (square pixels):<br />
1280 x 720<br />
1024 x 576<br />
768 x 432<br />
512 x 288</p>
<p>You can find these optimal resolutions programmatically by using <a href="http://en.wikipedia.org/wiki/Modulo_operation" rel="nofollow">modulo operation</a>.</p>
<p>&#8220;In computing, the modulo operation finds the remainder of division of one number by another.&#8221;</p>
<p>If the reminder of both width % 16 and height % 16 is 0, then you are good to go.</p>
<p>To calculate the optimal video bitrate, I would recommend having a look at Robert Reinhardt&#8217;s bitrate calculator (just remember to set the codec to H.264): <a href="http://www.adobe.com/devnet/flash/apps/flv_bitrate_calculator/" rel="nofollow">http://www.adobe.com/devnet/flash/apps/flv_bitrate_calculator/</a></p>
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	<item>
		<title>By: amh</title>
		<link>http://hdfilmtools.com/2008/09/filmmaker-profile-cinematographer-john-leonetti-shooting-with-red/comment-page-1/#comment-181</link>
		<dc:creator>amh</dc:creator>
		<pubDate>Sat, 06 Sep 2008 22:21:57 +0000</pubDate>
		<guid isPermaLink="false">http://hdfilmtools.com/?p=525#comment-181</guid>
		<description>in the video, dood says five, text says six red cameras on his movie...</description>
		<content:encoded><![CDATA[<p>in the video, dood says five, text says six red cameras on his movie&#8230;</p>
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	<item>
		<title>By: hdfilmtools</title>
		<link>http://hdfilmtools.com/2008/09/filmmaker-profile-cinematographer-john-leonetti-shooting-with-red/comment-page-1/#comment-179</link>
		<dc:creator>hdfilmtools</dc:creator>
		<pubDate>Sat, 06 Sep 2008 18:11:09 +0000</pubDate>
		<guid isPermaLink="false">http://hdfilmtools.com/?p=525#comment-179</guid>
		<description>Brian,

I take exception with your comment that I &quot;distorted&quot; what  John had to say. He, and in fact all of the people I interview, get final approval of their segment(s) before they go up on the site.  As a point of fact, Mr. Leonetti was very pleased with the finished &quot;cut&quot;. 

If you don&#039;t like the style of the piece, that&#039;s one thing. Everyone is entitled to their opinion and I encourage all intelligent and constructive feedback. On the other hand, I appreciate you taking a moment to choose your words more carefully before &lt;a href=&quot;http://www.merriam-webster.com/dictionary/impugn&quot; rel=&quot;nofollow&quot;&gt;impugning&lt;/a&gt; our work.

Thanks,
Larry Jordan
HDFilmtools.com</description>
		<content:encoded><![CDATA[<p>Brian,</p>
<p>I take exception with your comment that I &#8220;distorted&#8221; what  John had to say. He, and in fact all of the people I interview, get final approval of their segment(s) before they go up on the site.  As a point of fact, Mr. Leonetti was very pleased with the finished &#8220;cut&#8221;. </p>
<p>If you don&#8217;t like the style of the piece, that&#8217;s one thing. Everyone is entitled to their opinion and I encourage all intelligent and constructive feedback. On the other hand, I appreciate you taking a moment to choose your words more carefully before <a href="http://www.merriam-webster.com/dictionary/impugn" rel="nofollow">impugning</a> our work.</p>
<p>Thanks,<br />
Larry Jordan<br />
HDFilmtools.com</p>
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	<item>
		<title>By: brian</title>
		<link>http://hdfilmtools.com/2008/09/filmmaker-profile-cinematographer-john-leonetti-shooting-with-red/comment-page-1/#comment-178</link>
		<dc:creator>brian</dc:creator>
		<pubDate>Sat, 06 Sep 2008 17:50:35 +0000</pubDate>
		<guid isPermaLink="false">http://hdfilmtools.com/?p=525#comment-178</guid>
		<description>This interview looks like it was very heavily edited.  I wish you could have played it in full without distorting what John was saying.  It would have been much longer for sure, but I think it would have been more interesting that way.</description>
		<content:encoded><![CDATA[<p>This interview looks like it was very heavily edited.  I wish you could have played it in full without distorting what John was saying.  It would have been much longer for sure, but I think it would have been more interesting that way.</p>
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