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	<title>Comments on: Sigma Lenses vs Canon Lenses</title>
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	<link>http://www.radiantlite.com/2008/09/sigma-lenses-vs-canon-lenses.html</link>
	<description>Digital photography guide, news and discussion</description>
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		<title>By: виктор</title>
		<link>http://www.radiantlite.com/2008/09/sigma-lenses-vs-canon-lenses.html/comment-page-1#comment-5757</link>
		<dc:creator>виктор</dc:creator>
		<pubDate>Sat, 17 Dec 2011 14:25:49 +0000</pubDate>
		<guid isPermaLink="false">http://www.radiantlite.com/?p=139#comment-5757</guid>
		<description>А  Sigma50-200мм  очень классный объектив, только что то о нем мало кто наслышен.</description>
		<content:encoded><![CDATA[<p>А  Sigma50-200мм  очень классный объектив, только что то о нем мало кто наслышен.</p>
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		<title>By: Comparatif des optiques Canon et Sigma &#124; Emmanuel GEORJON</title>
		<link>http://www.radiantlite.com/2008/09/sigma-lenses-vs-canon-lenses.html/comment-page-1#comment-5693</link>
		<dc:creator>Comparatif des optiques Canon et Sigma &#124; Emmanuel GEORJON</dc:creator>
		<pubDate>Sun, 27 Nov 2011 23:24:21 +0000</pubDate>
		<guid isPermaLink="false">http://www.radiantlite.com/?p=139#comment-5693</guid>
		<description>[...] site de Enche Tjin propose un comparatif synthétique des gammes des deux constructeurs. En me servant de ma &#171;&#160;base de données&#171;&#160;, [...]</description>
		<content:encoded><![CDATA[<p>[...] site de Enche Tjin propose un comparatif synthétique des gammes des deux constructeurs. En me servant de ma &laquo;&nbsp;base de données&laquo;&nbsp;, [...]</p>
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	<item>
		<title>By: Al</title>
		<link>http://www.radiantlite.com/2008/09/sigma-lenses-vs-canon-lenses.html/comment-page-1#comment-2215</link>
		<dc:creator>Al</dc:creator>
		<pubDate>Thu, 15 Apr 2010 23:07:04 +0000</pubDate>
		<guid isPermaLink="false">http://www.radiantlite.com/?p=139#comment-2215</guid>
		<description>thanks very much for the feedback!</description>
		<content:encoded><![CDATA[<p>thanks very much for the feedback!</p>
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	<item>
		<title>By: Enche Tjin</title>
		<link>http://www.radiantlite.com/2008/09/sigma-lenses-vs-canon-lenses.html/comment-page-1#comment-2214</link>
		<dc:creator>Enche Tjin</dc:creator>
		<pubDate>Thu, 15 Apr 2010 19:13:37 +0000</pubDate>
		<guid isPermaLink="false">http://www.radiantlite.com/?p=139#comment-2214</guid>
		<description>I use Sigma 100-300mm f/4 HSM for soccer and football couple years ago. My impression of this lens is heavy (best with monopod). Also worth to mention that Sigma zoom is counter clock-wise while Canon lenses&#039; zoom is clock wise. So it may takes a while for you to get used to it.

I don&#039;t have problem with f4 because I usually shoot outdoor sports with plenty of light. 300mm in APS-C camera provide good reach. 

Image quality is very good although not as sharp as Canon 70-200mm f/4 IS USM (probably on par Canon with 100-400mm.). Image is a bit warmer and the bokeh is soft and nice.

Focusing speed is good enough for sports, but it is not as snappy as 70-200mm f/4 IS USM. 

I haven&#039;t used Canon 100-400mm lens so I can&#039;t comment on it. But I think the AF and image quality is on par (because 100-400mm USM is older version, it is not as fast as Canon 70-200mms)</description>
		<content:encoded><![CDATA[<p>I use Sigma 100-300mm f/4 HSM for soccer and football couple years ago. My impression of this lens is heavy (best with monopod). Also worth to mention that Sigma zoom is counter clock-wise while Canon lenses&#8217; zoom is clock wise. So it may takes a while for you to get used to it.</p>
<p>I don&#8217;t have problem with f4 because I usually shoot outdoor sports with plenty of light. 300mm in APS-C camera provide good reach. </p>
<p>Image quality is very good although not as sharp as Canon 70-200mm f/4 IS USM (probably on par Canon with 100-400mm.). Image is a bit warmer and the bokeh is soft and nice.</p>
<p>Focusing speed is good enough for sports, but it is not as snappy as 70-200mm f/4 IS USM. </p>
<p>I haven&#8217;t used Canon 100-400mm lens so I can&#8217;t comment on it. But I think the AF and image quality is on par (because 100-400mm USM is older version, it is not as fast as Canon 70-200mms)</p>
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		<title>By: Al</title>
		<link>http://www.radiantlite.com/2008/09/sigma-lenses-vs-canon-lenses.html/comment-page-1#comment-2212</link>
		<dc:creator>Al</dc:creator>
		<pubDate>Thu, 15 Apr 2010 18:20:45 +0000</pubDate>
		<guid isPermaLink="false">http://www.radiantlite.com/?p=139#comment-2212</guid>
		<description>I&#039;m looking at the Sigma 100-300 mm f/4 and the Canon 100-400mm f/4.5-5.6 for shooting sports.

Any opinions?....I heard the Sigma hunts a little when focusing (could be a problem when shooting action) however the Sigma also has 1 lower stop that remains the same throughout the range of the lens.

Any feedback is appreciated.

Thanks!</description>
		<content:encoded><![CDATA[<p>I&#8217;m looking at the Sigma 100-300 mm f/4 and the Canon 100-400mm f/4.5-5.6 for shooting sports.</p>
<p>Any opinions?&#8230;.I heard the Sigma hunts a little when focusing (could be a problem when shooting action) however the Sigma also has 1 lower stop that remains the same throughout the range of the lens.</p>
<p>Any feedback is appreciated.</p>
<p>Thanks!</p>
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