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	<title>Comments on: Lens review: Canon EF 100-400mm f/4.5-5.6L IS USM Zoom</title>
	<atom:link href="http://www.raoulpop.com/2007/07/03/lens-review-canon-ef-100-400mm-f45-56l-is-usm-zoom/feed/" rel="self" type="application/rss+xml" />
	<link>http://www.raoulpop.com/2007/07/03/lens-review-canon-ef-100-400mm-f45-56l-is-usm-zoom/</link>
	<description>Selected thoughts and images. If you must pigeonhole my site, let&#039;s call it a travel and tech blog.</description>
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		<title>By: Photography, take two, part five (finis) by Raoul Pop</title>
		<link>http://www.raoulpop.com/2007/07/03/lens-review-canon-ef-100-400mm-f45-56l-is-usm-zoom/comment-page-1/#comment-142006</link>
		<dc:creator>Photography, take two, part five (finis) by Raoul Pop</dc:creator>
		<pubDate>Mon, 21 Jan 2008 19:00:53 +0000</pubDate>
		<guid isPermaLink="false">http://raoulpop.com/2007/07/03/review-canons-ef-100-400mm-f45-56l-is-usm-zoom/#comment-142006</guid>
		<description>[...] Lens review: Canon EF 100-400mm f/4.5-5.6L IS USM Zoom [...]</description>
		<content:encoded><![CDATA[<p><!-- google_ad_section_start -->[...] Lens review: Canon EF 100-400mm f/4.5-5.6L IS USM Zoom [...]<!-- google_ad_section_end --></p>
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		<title>By: Vantage point photography</title>
		<link>http://www.raoulpop.com/2007/07/03/lens-review-canon-ef-100-400mm-f45-56l-is-usm-zoom/comment-page-1/#comment-141770</link>
		<dc:creator>Vantage point photography</dc:creator>
		<pubDate>Mon, 14 Jan 2008 12:33:23 +0000</pubDate>
		<guid isPermaLink="false">http://raoulpop.com/2007/07/03/review-canons-ef-100-400mm-f45-56l-is-usm-zoom/#comment-141770</guid>
		<description>[...] last photo was taken with the EF 100-400mm IS L series zoom from Canon, but to be fair, photos look a LOT better when it&#8217;s summer and you get that [...]</description>
		<content:encoded><![CDATA[<p><!-- google_ad_section_start -->[...] last photo was taken with the EF 100-400mm IS L series zoom from Canon, but to be fair, photos look a LOT better when it&#8217;s summer and you get that [...]<!-- google_ad_section_end --></p>
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		<title>By: Raoul</title>
		<link>http://www.raoulpop.com/2007/07/03/lens-review-canon-ef-100-400mm-f45-56l-is-usm-zoom/comment-page-1/#comment-141580</link>
		<dc:creator>Raoul</dc:creator>
		<pubDate>Sun, 06 Jan 2008 20:17:20 +0000</pubDate>
		<guid isPermaLink="false">http://raoulpop.com/2007/07/03/review-canons-ef-100-400mm-f45-56l-is-usm-zoom/#comment-141580</guid>
		<description>Landon, I haven&#039;t tried the 70-300mm lens, but I hear it&#039;s pretty good. One difference that comes to mind right away (other than the focal length) is that the 100-400mm lens is L series, so it&#039;s built tougher. 

For your needs, I&#039;d say stick with the 70-300mm. Since you&#039;ve got an XTi, the 100-400mm lens, with its heft, would really imbalance you. The XTi is much too light a body for this lens. 

If you do need the extra reach, try the 1.4x or 2x extenders from Canon, but check to make sure they&#039;ll work with your lens first.

As for the dust seeping in, it&#039;s possible. The push/pull zoom mechanism does create a sort of vacuum in side the lens and sensor chamber, so it&#039;ll tend to suck stuff in then blow it out as you adjust the focal length. This mechanism seems to me to be more prone to dust problems overtime than the regular zoom ring-based mechanisms. Then again, this is an L series, so I would hope Canon addressed that issue. Not having used the lens extensively, I can&#039;t give you a definitive answer on this. </description>
		<content:encoded><![CDATA[<p><!-- google_ad_section_start -->Landon, I haven&#8217;t tried the 70-300mm lens, but I hear it&#8217;s pretty good. One difference that comes to mind right away (other than the focal length) is that the 100-400mm lens is L series, so it&#8217;s built tougher. </p>
<p>For your needs, I&#8217;d say stick with the 70-300mm. Since you&#8217;ve got an XTi, the 100-400mm lens, with its heft, would really imbalance you. The XTi is much too light a body for this lens. </p>
<p>If you do need the extra reach, try the 1.4x or 2x extenders from Canon, but check to make sure they&#8217;ll work with your lens first.</p>
<p>As for the dust seeping in, it&#8217;s possible. The push/pull zoom mechanism does create a sort of vacuum in side the lens and sensor chamber, so it&#8217;ll tend to suck stuff in then blow it out as you adjust the focal length. This mechanism seems to me to be more prone to dust problems overtime than the regular zoom ring-based mechanisms. Then again, this is an L series, so I would hope Canon addressed that issue. Not having used the lens extensively, I can&#8217;t give you a definitive answer on this. <!-- google_ad_section_end --></p>
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		<title>By: Landon White</title>
		<link>http://www.raoulpop.com/2007/07/03/lens-review-canon-ef-100-400mm-f45-56l-is-usm-zoom/comment-page-1/#comment-141563</link>
		<dc:creator>Landon White</dc:creator>
		<pubDate>Sat, 05 Jan 2008 17:16:02 +0000</pubDate>
		<guid isPermaLink="false">http://raoulpop.com/2007/07/03/review-canons-ef-100-400mm-f45-56l-is-usm-zoom/#comment-141563</guid>
		<description>For my xti I have an EF 70-300mm f/4-5.6 IS USM 
Telephoto Zoom Lens and wonder if the EF 100-400mm f/4.5-5.6L IS would be significantly better.  I&#039;m a beginner/intermediate user interested in wildlife photography so the extra reach sounds good to me. I also assume the glass is significantly better. But I have no guidance as to whether or not I can expect significantly better pictres.

I&#039;ve read concerns about dust seeping in in other reviews of this lens.

Comments??</description>
		<content:encoded><![CDATA[<p><!-- google_ad_section_start -->For my xti I have an EF 70-300mm f/4-5.6 IS USM<br />
Telephoto Zoom Lens and wonder if the EF 100-400mm f/4.5-5.6L IS would be significantly better.  I&#8217;m a beginner/intermediate user interested in wildlife photography so the extra reach sounds good to me. I also assume the glass is significantly better. But I have no guidance as to whether or not I can expect significantly better pictres.</p>
<p>I&#8217;ve read concerns about dust seeping in in other reviews of this lens.</p>
<p>Comments??<!-- google_ad_section_end --></p>
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		<title>By: Making it to the first page of Google search results</title>
		<link>http://www.raoulpop.com/2007/07/03/lens-review-canon-ef-100-400mm-f45-56l-is-usm-zoom/comment-page-1/#comment-129343</link>
		<dc:creator>Making it to the first page of Google search results</dc:creator>
		<pubDate>Fri, 27 Jul 2007 00:34:21 +0000</pubDate>
		<guid isPermaLink="false">http://raoulpop.com/2007/07/03/review-canons-ef-100-400mm-f45-56l-is-usm-zoom/#comment-129343</guid>
		<description>[...] Review: Canon EF 100-400mm zoom lens (first page at Google) [...]</description>
		<content:encoded><![CDATA[<p><!-- google_ad_section_start -->[...] Review: Canon EF 100-400mm zoom lens (first page at Google) [...]<!-- google_ad_section_end --></p>
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		<title>By: ComeAcross &#187; Review: Canon EF 70-200mm f/2.8L IS USM Zoom Lens</title>
		<link>http://www.raoulpop.com/2007/07/03/lens-review-canon-ef-100-400mm-f45-56l-is-usm-zoom/comment-page-1/#comment-125724</link>
		<dc:creator>ComeAcross &#187; Review: Canon EF 70-200mm f/2.8L IS USM Zoom Lens</dc:creator>
		<pubDate>Fri, 13 Jul 2007 04:32:53 +0000</pubDate>
		<guid isPermaLink="false">http://raoulpop.com/2007/07/03/review-canons-ef-100-400mm-f45-56l-is-usm-zoom/#comment-125724</guid>
		<description>[...] I rented Canon&#8217;s premier mid-range zoom lens, the EF 70-200mm f/2.8L IS USM, and had the chance to play with it for a day. I put it through its paces: daylight, dusk, low light and early morning light. The result: I love it and plan to buy it. This lens works better for my needs than the EF 100-400mm F/4.5-5.6L IS USM, which I rented and reviewed recently. [...]</description>
		<content:encoded><![CDATA[<p><!-- google_ad_section_start -->[...] I rented Canon&#8217;s premier mid-range zoom lens, the EF 70-200mm f/2.8L IS USM, and had the chance to play with it for a day. I put it through its paces: daylight, dusk, low light and early morning light. The result: I love it and plan to buy it. This lens works better for my needs than the EF 100-400mm F/4.5-5.6L IS USM, which I rented and reviewed recently. [...]<!-- google_ad_section_end --></p>
]]></content:encoded>
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	<item>
		<title>By: A Photo a Day (roughly) &#187; Window to the past</title>
		<link>http://www.raoulpop.com/2007/07/03/lens-review-canon-ef-100-400mm-f45-56l-is-usm-zoom/comment-page-1/#comment-122909</link>
		<dc:creator>A Photo a Day (roughly) &#187; Window to the past</dc:creator>
		<pubDate>Fri, 06 Jul 2007 15:44:33 +0000</pubDate>
		<guid isPermaLink="false">http://raoulpop.com/2007/07/03/review-canons-ef-100-400mm-f45-56l-is-usm-zoom/#comment-122909</guid>
		<description>[...] While I&#8217;m on the subject of lenses, Raoul Pop has a great review of the Canon EF 100-400mm f/4.5-5.6L IS USM Zoom lens. It&#8217;s a little out of my price range (right now), but maybe someday I&#8217;ll get an L-Series lens. When I get my lens, I&#8217;ll post a review. [...]</description>
		<content:encoded><![CDATA[<p><!-- google_ad_section_start -->[...] While I&#8217;m on the subject of lenses, Raoul Pop has a great review of the Canon EF 100-400mm f/4.5-5.6L IS USM Zoom lens. It&#8217;s a little out of my price range (right now), but maybe someday I&#8217;ll get an L-Series lens. When I get my lens, I&#8217;ll post a review. [...]<!-- google_ad_section_end --></p>
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		<title>By: ComeAcross &#187; Choosing between Flickr, Zooomr and Picasa Web</title>
		<link>http://www.raoulpop.com/2007/07/03/lens-review-canon-ef-100-400mm-f45-56l-is-usm-zoom/comment-page-1/#comment-122570</link>
		<dc:creator>ComeAcross &#187; Choosing between Flickr, Zooomr and Picasa Web</dc:creator>
		<pubDate>Thu, 05 Jul 2007 21:50:44 +0000</pubDate>
		<guid isPermaLink="false">http://raoulpop.com/2007/07/03/review-canons-ef-100-400mm-f45-56l-is-usm-zoom/#comment-122570</guid>
		<description>[...] Cosmin asked me yesterday what I thought of Flickr, Zooomr and Picasa Web. He&#8217;s been using Yahoo! Photos, and as you may have already heard, they&#8217;re shutting down and merging their photos with Flickr. Existing Yahoo! Photos users will get the option to transfer their photo library directly to Flickr, and new users are getting sent to Flickr already. [...]</description>
		<content:encoded><![CDATA[<p><!-- google_ad_section_start -->[...] Cosmin asked me yesterday what I thought of Flickr, Zooomr and Picasa Web. He&#8217;s been using Yahoo! Photos, and as you may have already heard, they&#8217;re shutting down and merging their photos with Flickr. Existing Yahoo! Photos users will get the option to transfer their photo library directly to Flickr, and new users are getting sent to Flickr already. [...]<!-- google_ad_section_end --></p>
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		<title>By: Review: Canon EF 100-400mm F/4.5-5/6L IS USM Lens at Imaging Insider</title>
		<link>http://www.raoulpop.com/2007/07/03/lens-review-canon-ef-100-400mm-f45-56l-is-usm-zoom/comment-page-1/#comment-122017</link>
		<dc:creator>Review: Canon EF 100-400mm F/4.5-5/6L IS USM Lens at Imaging Insider</dc:creator>
		<pubDate>Wed, 04 Jul 2007 17:56:07 +0000</pubDate>
		<guid isPermaLink="false">http://raoulpop.com/2007/07/03/review-canons-ef-100-400mm-f45-56l-is-usm-zoom/#comment-122017</guid>
		<description>[...] Read More&#8230; [...]</description>
		<content:encoded><![CDATA[<p><!-- google_ad_section_start -->[...] Read More&#8230; [...]<!-- google_ad_section_end --></p>
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	<item>
		<title>By: Raoul</title>
		<link>http://www.raoulpop.com/2007/07/03/lens-review-canon-ef-100-400mm-f45-56l-is-usm-zoom/comment-page-1/#comment-121977</link>
		<dc:creator>Raoul</dc:creator>
		<pubDate>Wed, 04 Jul 2007 15:12:11 +0000</pubDate>
		<guid isPermaLink="false">http://raoulpop.com/2007/07/03/review-canons-ef-100-400mm-f45-56l-is-usm-zoom/#comment-121977</guid>
		<description>Cosmin, I&#039;ll write a separate post about that. Yahoo Photos is merging with Flickr, so I believe you&#039;ll have the option to export your photos to them, but there are some other things to consider, and I&#039;ll talk about them in my blog post.</description>
		<content:encoded><![CDATA[<p><!-- google_ad_section_start -->Cosmin, I&#8217;ll write a separate post about that. Yahoo Photos is merging with Flickr, so I believe you&#8217;ll have the option to export your photos to them, but there are some other things to consider, and I&#8217;ll talk about them in my blog post.<!-- google_ad_section_end --></p>
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	<item>
		<title>By: photographyVoter.com</title>
		<link>http://www.raoulpop.com/2007/07/03/lens-review-canon-ef-100-400mm-f45-56l-is-usm-zoom/comment-page-1/#comment-121969</link>
		<dc:creator>photographyVoter.com</dc:creator>
		<pubDate>Wed, 04 Jul 2007 14:59:18 +0000</pubDate>
		<guid isPermaLink="false">http://raoulpop.com/2007/07/03/review-canons-ef-100-400mm-f45-56l-is-usm-zoom/#comment-121969</guid>
		<description>&lt;strong&gt;Review: Canon’s EF 100-400mm f/4.5-5.6L IS USM Zoom...&lt;/strong&gt;

A hands-on review of Canon&#039;s affordable L series zoom, the EF 100-400mm f/4.5-5.6L IS USM. Review done with a 5D....</description>
		<content:encoded><![CDATA[<p><!-- google_ad_section_start --><strong>Review: Canon’s EF 100-400mm f/4.5-5.6L IS USM Zoom&#8230;</strong></p>
<p>A hands-on review of Canon&#8217;s affordable L series zoom, the EF 100-400mm f/4.5-5.6L IS USM. Review done with a 5D&#8230;.<!-- google_ad_section_end --></p>
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		<title>By: cosmin</title>
		<link>http://www.raoulpop.com/2007/07/03/lens-review-canon-ef-100-400mm-f45-56l-is-usm-zoom/comment-page-1/#comment-121913</link>
		<dc:creator>cosmin</dc:creator>
		<pubDate>Wed, 04 Jul 2007 12:26:24 +0000</pubDate>
		<guid isPermaLink="false">http://raoulpop.com/2007/07/03/review-canons-ef-100-400mm-f45-56l-is-usm-zoom/#comment-121913</guid>
		<description>hey Raoul,
Happy 4th of July!
Would you be able to comment on the differences between Picassa, Flikr and Zoomr which I see you&#039;re using?
Apparently Yahoo is closing down the photos section and now I have to move some good gigs of pics  ;-)

thx much,
Cosmin</description>
		<content:encoded><![CDATA[<p><!-- google_ad_section_start -->hey Raoul,<br />
Happy 4th of July!<br />
Would you be able to comment on the differences between Picassa, Flikr and Zoomr which I see you&#8217;re using?<br />
Apparently Yahoo is closing down the photos section and now I have to move some good gigs of pics  <img src='http://www.raoulpop.com/wp-includes/images/smilies/icon_wink.gif' alt=';-)' class='wp-smiley' /> </p>
<p>thx much,<br />
Cosmin<!-- google_ad_section_end --></p>
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