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Sigma 120-300 f2.8 Sport with TCs - tests
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<blockquote data-quote="BeerBelly" data-source="post: 603189" data-attributes="member: 35439"><p>I saw some folks (@Ironwood) here call for comparisons and tests with the Sigma 120-300...so I obliged <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile :)" loading="lazy" data-shortname=":)" /></p><p></p><p>So I recently acquired a new to me Sigma 120-300 f2.8 Sport lens. The lens feels and handles great and is a joy to use. Be sure though to upgrade to the latest FW. If it stays on the 1.00 FW it is sluggish and behaves oddly.</p><p></p><p>To the test. I tested the bare lens, with the 1.4TC and with the 2xTC. The TCs used were the old APO DG variants, since I don't have the new ones. Optically they are suppose to be the same, the new ones just work with the dock.</p><p></p><p>I tested it the way I would most normally use it in the field. All the focal lengths were shot from the same distance to the target, which was roughly 7 meters (23 feet). I did change the exposure though, so all the variations have the same ISO (100). I exported JPGs with Lightroom, leaving sharpness at the default 25 setting. I adjusted white balance as well.</p><p>I will let you draw your own conclusions.</p><p></p><p>Below are 100% crops of 300mm at f2.8, f3.2, f4, f5.6 and f7.1; 420mm at f4, f4.5, f5.6, f7.1 and f8; 600mm at f5.6, f6.3, f7.1 and f8</p><p></p><p>300mm comparison:</p><p><img src="http://www.bobr.si/fotke/300_comparison.png" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p>420mm comparison:</p><p><img src="http://www.bobr.si/fotke/420_comparison.png" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p></p><p>600mm comparison:</p><p><img src="http://www.bobr.si/fotke/600_comparison.png" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p></p><p><span style="color: #000000"><span style="font-family: inherit">Full files available for download at: </span></span><a href="http://www.bobr.si/fotke/s123sport_test.zip" target="_blank">http://www.bobr.si/fotke/s123sport_test.zip</a></p><p></p><p>Sorry for the large images, but I did not want the uploader here removing detail</p></blockquote><p></p>
[QUOTE="BeerBelly, post: 603189, member: 35439"] I saw some folks (@Ironwood) here call for comparisons and tests with the Sigma 120-300...so I obliged :) So I recently acquired a new to me Sigma 120-300 f2.8 Sport lens. The lens feels and handles great and is a joy to use. Be sure though to upgrade to the latest FW. If it stays on the 1.00 FW it is sluggish and behaves oddly. To the test. I tested the bare lens, with the 1.4TC and with the 2xTC. The TCs used were the old APO DG variants, since I don't have the new ones. Optically they are suppose to be the same, the new ones just work with the dock. I tested it the way I would most normally use it in the field. All the focal lengths were shot from the same distance to the target, which was roughly 7 meters (23 feet). I did change the exposure though, so all the variations have the same ISO (100). I exported JPGs with Lightroom, leaving sharpness at the default 25 setting. I adjusted white balance as well. I will let you draw your own conclusions. Below are 100% crops of 300mm at f2.8, f3.2, f4, f5.6 and f7.1; 420mm at f4, f4.5, f5.6, f7.1 and f8; 600mm at f5.6, f6.3, f7.1 and f8 300mm comparison: [IMG]http://www.bobr.si/fotke/300_comparison.png[/IMG] 420mm comparison: [IMG]http://www.bobr.si/fotke/420_comparison.png[/IMG] 600mm comparison: [IMG]http://www.bobr.si/fotke/600_comparison.png[/IMG] [COLOR=#000000][FONT='inherit']Full files available for download at: [/FONT][/COLOR][URL]http://www.bobr.si/fotke/s123sport_test.zip[/URL] Sorry for the large images, but I did not want the uploader here removing detail [/QUOTE]
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Sigma 120-300 f2.8 Sport with TCs - tests
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