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    <title>PhotoActive - Episodes Tagged with “Focus”</title>
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    <pubDate>Fri, 24 May 2019 00:00:00 -0700</pubDate>
    <description>Jeff Carlson and Kirk McElhearn discuss photography and the Apple ecosystem. We cover using an iPhone or any other camera with Apple hardware and software, and we welcome photographers to discuss their work.
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    <itunes:subtitle>A podcast about photography and the Apple ecosystem. </itunes:subtitle>
    <itunes:author>Jeff Carlson &amp; Kirk McElhearn</itunes:author>
    <itunes:summary>Jeff Carlson and Kirk McElhearn discuss photography and the Apple ecosystem. We cover using an iPhone or any other camera with Apple hardware and software, and we welcome photographers to discuss their work.
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      <itunes:name>Jeff Carlson &amp; Kirk McElhearn</itunes:name>
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<itunes:category text="Arts">
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  <title>Episode 43: Autofocus with Rishi Sanyal</title>
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  <pubDate>Fri, 24 May 2019 00:00:00 -0700</pubDate>
  <author>Jeff Carlson &amp; Kirk McElhearn</author>
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  <itunes:episode>43</itunes:episode>
  <itunes:title>Autofocus with Rishi Sanyal</itunes:title>
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  <itunes:author>Jeff Carlson &amp; Kirk McElhearn</itunes:author>
  <itunes:subtitle>You rely on your camera’s autofocus feature, but how does it work? Phase-detection, contrast-detection, machine-learning algorithms, AF-C, AF-S… autofocus quickly becomes a complicated subject for any photographer to keep straight while shooting. Rishi Sanyal, Science Editor at DPReview.com, joins us for this breakdown of autofocus works and how you can use it more effectively.</itunes:subtitle>
  <itunes:duration>38:08</itunes:duration>
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  <description>You rely on your camera’s autofocus feature, but how does it work? Phase-detection, contrast-detection, machine-learning algorithms, AF-C, AF-S… autofocus quickly becomes a complicated subject for any photographer to keep straight while shooting. Rishi Sanyal, Science Editor at DPReview.com, joins us for this breakdown of autofocus works and how you can use it more effectively.
Sponsor
Masters of Photography, online masterclasses with the greatest photographers in the world. Get 5% off any course with the code PHOTOACTIVE. https://mastersof.photography (https://mastersof.photography/ref/27/?campaign=PhotoActive)
Guest:
Rishi Sanyal (https://www.dpreview.com/about/staff/rishisanyal), Science Editor at DPReview.com
Rishi’s Instagram (https://www.instagram.com/rishisanyal/)
Hosts:
Jeff's website (https://jeffcarlson.com), Jeff's photos (https://jeffcarlson.com/portfolio/), Jeff on Instagram (http://instagram.com/jeffcarlson)
Kirk's website (https://www.kirkville.com), Kirk's photos (https://photos.kirkville.com), Kirk on Instagram (https://instagram.com/mcelhearn)
Show Notes:
(View show notes with images at PhotoActive.co (https://www.photoactive.co/home/episode-43-autofocus))
Episode note: The Skype connection was spotty during recording. Apologies for the occasional audio glitch.
Rate and Review the PhotoActive Podcast! (https://itunes.apple.com/us/podcast/photoactive/id1391697658?mt=2)
Fuji AF Modes (https://fujifilm-x.com/af/en/af_mode/index.html)
Konica C35 AF (https://camerapedia.fandom.com/wiki/Konica_C35_AF), the first mass-produced autofocus camera
Video: How phase detection autofocus works (https://www.dpreview.com/news/5151243144/video-how-phase-detection-autofocus-works), DPReview
Phase Detection vs Contrast Detection Autofocus (https://www.creative-photographer.com/phase-detection-contrast-detection-autofocus/), The Creative Photographer
Sony's 'Real-time tracking' is a big leap forward for autofocus (https://www.dpreview.com/articles/0650136683/sony-s-real-time-tracking-is-a-big-leap-forward-for-autofocus), DPReview
Our Snapshots:
Jeff: The Texture Slider in Lightroom Classic (http://blogs.adobe.com/jkost/2019/05/the-texture-slider-in-lightroom-classic.html)
Kirk: Camera bag insert (https://amzn.to/2YJmOac)
Subscribe to the PhotoActive podcast newsletter at the bottom of any page at the PhotoActive web site (https://photoactive.co) to be notified of new episodes and be eligible for occasional giveaways. If you’ve already subscribed, you’re automatically entered.
If you like the show, please subscribe in iTunes (https://itunes.apple.com/us/podcast/photoactive/id1391697658?mt=2) or your favorite podcast app, and please rate the podcast. And don't forget to join the PhotoActive Facebook group (https://www.facebook.com/groups/photoactivecast/) to discuss the podcast, share your photos, and more. 
</description>
  <itunes:keywords>photography, podcast, kirk mcelhearn, jeff carlson, cameras, lenses, apple, iPhone, photo editing, photo organization, autofocus, focus, af-c, af-s, sony, fuji, canon, dpreview</itunes:keywords>
  <content:encoded>
    <![CDATA[<p>You rely on your camera’s autofocus feature, but how does it work? Phase-detection, contrast-detection, machine-learning algorithms, AF-C, AF-S… autofocus quickly becomes a complicated subject for any photographer to keep straight while shooting. Rishi Sanyal, Science Editor at DPReview.com, joins us for this breakdown of autofocus works and how you can use it more effectively.</p>

<p><strong>Sponsor</strong></p>

<p><strong>Masters of Photography</strong>, online masterclasses with the greatest photographers in the world. Get 5% off any course with the code PHOTOACTIVE. <a href="https://mastersof.photography/ref/27/?campaign=PhotoActive" rel="nofollow">https://mastersof.photography</a></p>

<p><strong>Guest:</strong></p>

<ul>
<li><a href="https://www.dpreview.com/about/staff/rishisanyal" rel="nofollow">Rishi Sanyal</a>, Science Editor at DPReview.com</li>
<li><a href="https://www.instagram.com/rishisanyal/" rel="nofollow">Rishi’s Instagram</a></li>
</ul>

<p><strong>Hosts:</strong></p>

<ul>
<li><a href="https://jeffcarlson.com" rel="nofollow">Jeff&#39;s website</a>, <a href="https://jeffcarlson.com/portfolio/" rel="nofollow">Jeff&#39;s photos</a>, <a href="http://instagram.com/jeffcarlson" rel="nofollow">Jeff on Instagram</a></li>
<li><a href="https://www.kirkville.com" rel="nofollow">Kirk&#39;s website</a>, <a href="https://photos.kirkville.com" rel="nofollow">Kirk&#39;s photos</a>, <a href="https://instagram.com/mcelhearn" rel="nofollow">Kirk on Instagram</a></li>
</ul>

<p><strong>Show Notes:</strong></p>

<p>(<a href="https://www.photoactive.co/home/episode-43-autofocus" rel="nofollow">View show notes with images at PhotoActive.co</a>)</p>

<p><strong>Episode note</strong>: The Skype connection was spotty during recording. Apologies for the occasional audio glitch.</p>

<ul>
<li><p><a href="https://itunes.apple.com/us/podcast/photoactive/id1391697658?mt=2" rel="nofollow">Rate and Review the PhotoActive Podcast!</a></p></li>
<li><p><a href="https://fujifilm-x.com/af/en/af_mode/index.html" rel="nofollow">Fuji AF Modes</a></p></li>
<li><p><a href="https://camerapedia.fandom.com/wiki/Konica_C35_AF" rel="nofollow">Konica C35 AF</a>, the first mass-produced autofocus camera</p></li>
<li><p><a href="https://www.dpreview.com/news/5151243144/video-how-phase-detection-autofocus-works" rel="nofollow">Video: How phase detection autofocus works</a>, DPReview</p></li>
<li><p><a href="https://www.creative-photographer.com/phase-detection-contrast-detection-autofocus/" rel="nofollow">Phase Detection vs Contrast Detection Autofocus</a>, The Creative Photographer</p></li>
<li><p><a href="https://www.dpreview.com/articles/0650136683/sony-s-real-time-tracking-is-a-big-leap-forward-for-autofocus" rel="nofollow">Sony&#39;s &#39;Real-time tracking&#39; is a big leap forward for autofocus</a>, DPReview</p></li>
</ul>

<p><strong>Our Snapshots:</strong></p>

<ul>
<li><p>Jeff: <a href="http://blogs.adobe.com/jkost/2019/05/the-texture-slider-in-lightroom-classic.html" rel="nofollow">The Texture Slider in Lightroom Classic</a></p></li>
<li><p>Kirk: <a href="https://amzn.to/2YJmOac" rel="nofollow">Camera bag insert</a></p></li>
</ul>

<p><strong>Subscribe to the PhotoActive podcast newsletter</strong> at <a href="https://photoactive.co" rel="nofollow">the bottom of any page at the PhotoActive web site</a> to be notified of new episodes and be eligible for occasional giveaways. If you’ve already subscribed, you’re automatically entered.</p>

<p>If you like the show, please <a href="https://itunes.apple.com/us/podcast/photoactive/id1391697658?mt=2" rel="nofollow">subscribe in iTunes</a> or your favorite podcast app, and please rate the podcast. And don&#39;t forget to join the <a href="https://www.facebook.com/groups/photoactivecast/" rel="nofollow">PhotoActive Facebook group</a> to discuss the podcast, share your photos, and more.</p>]]>
  </content:encoded>
  <itunes:summary>
    <![CDATA[<p>You rely on your camera’s autofocus feature, but how does it work? Phase-detection, contrast-detection, machine-learning algorithms, AF-C, AF-S… autofocus quickly becomes a complicated subject for any photographer to keep straight while shooting. Rishi Sanyal, Science Editor at DPReview.com, joins us for this breakdown of autofocus works and how you can use it more effectively.</p>

<p><strong>Sponsor</strong></p>

<p><strong>Masters of Photography</strong>, online masterclasses with the greatest photographers in the world. Get 5% off any course with the code PHOTOACTIVE. <a href="https://mastersof.photography/ref/27/?campaign=PhotoActive" rel="nofollow">https://mastersof.photography</a></p>

<p><strong>Guest:</strong></p>

<ul>
<li><a href="https://www.dpreview.com/about/staff/rishisanyal" rel="nofollow">Rishi Sanyal</a>, Science Editor at DPReview.com</li>
<li><a href="https://www.instagram.com/rishisanyal/" rel="nofollow">Rishi’s Instagram</a></li>
</ul>

<p><strong>Hosts:</strong></p>

<ul>
<li><a href="https://jeffcarlson.com" rel="nofollow">Jeff&#39;s website</a>, <a href="https://jeffcarlson.com/portfolio/" rel="nofollow">Jeff&#39;s photos</a>, <a href="http://instagram.com/jeffcarlson" rel="nofollow">Jeff on Instagram</a></li>
<li><a href="https://www.kirkville.com" rel="nofollow">Kirk&#39;s website</a>, <a href="https://photos.kirkville.com" rel="nofollow">Kirk&#39;s photos</a>, <a href="https://instagram.com/mcelhearn" rel="nofollow">Kirk on Instagram</a></li>
</ul>

<p><strong>Show Notes:</strong></p>

<p>(<a href="https://www.photoactive.co/home/episode-43-autofocus" rel="nofollow">View show notes with images at PhotoActive.co</a>)</p>

<p><strong>Episode note</strong>: The Skype connection was spotty during recording. Apologies for the occasional audio glitch.</p>

<ul>
<li><p><a href="https://itunes.apple.com/us/podcast/photoactive/id1391697658?mt=2" rel="nofollow">Rate and Review the PhotoActive Podcast!</a></p></li>
<li><p><a href="https://fujifilm-x.com/af/en/af_mode/index.html" rel="nofollow">Fuji AF Modes</a></p></li>
<li><p><a href="https://camerapedia.fandom.com/wiki/Konica_C35_AF" rel="nofollow">Konica C35 AF</a>, the first mass-produced autofocus camera</p></li>
<li><p><a href="https://www.dpreview.com/news/5151243144/video-how-phase-detection-autofocus-works" rel="nofollow">Video: How phase detection autofocus works</a>, DPReview</p></li>
<li><p><a href="https://www.creative-photographer.com/phase-detection-contrast-detection-autofocus/" rel="nofollow">Phase Detection vs Contrast Detection Autofocus</a>, The Creative Photographer</p></li>
<li><p><a href="https://www.dpreview.com/articles/0650136683/sony-s-real-time-tracking-is-a-big-leap-forward-for-autofocus" rel="nofollow">Sony&#39;s &#39;Real-time tracking&#39; is a big leap forward for autofocus</a>, DPReview</p></li>
</ul>

<p><strong>Our Snapshots:</strong></p>

<ul>
<li><p>Jeff: <a href="http://blogs.adobe.com/jkost/2019/05/the-texture-slider-in-lightroom-classic.html" rel="nofollow">The Texture Slider in Lightroom Classic</a></p></li>
<li><p>Kirk: <a href="https://amzn.to/2YJmOac" rel="nofollow">Camera bag insert</a></p></li>
</ul>

<p><strong>Subscribe to the PhotoActive podcast newsletter</strong> at <a href="https://photoactive.co" rel="nofollow">the bottom of any page at the PhotoActive web site</a> to be notified of new episodes and be eligible for occasional giveaways. If you’ve already subscribed, you’re automatically entered.</p>

<p>If you like the show, please <a href="https://itunes.apple.com/us/podcast/photoactive/id1391697658?mt=2" rel="nofollow">subscribe in iTunes</a> or your favorite podcast app, and please rate the podcast. And don&#39;t forget to join the <a href="https://www.facebook.com/groups/photoactivecast/" rel="nofollow">PhotoActive Facebook group</a> to discuss the podcast, share your photos, and more.</p>]]>
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