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<blockquote data-quote="kiwi86" data-source="post: 130479" data-attributes="member: 13164">what lens to use with 2.0 teleconverter?sigma 300 mm 2.8 or sigma 120-300 mm 2.8 OS?which is sharper (it would be logical prime but.. a lot of people said zoom)and how much should be closed aperture? f/7.1-f/8…<a href="http://www.the-digital-picture.com/Reviews/ISO-12233-Sample-Crops.aspx?Lens=803&amp;Camera=453&amp;Sample=0&amp;FLI=7&amp;API=4&amp;LensComp=381&amp;CameraComp=9&amp;SampleComp=0&amp;FLIComp=3&amp;APIComp=4" target="_blank">Sigma 120-300mm f/2.8 EX DG OS HSM Lens Image Quality</a><a href="http://www.lenstip.com/342.4-Lens_review-Sigma_120-300_mm_f_2.8_APO_EX_DG_OS_HSM_Image_resolution.html" target="_blank">Sigma 120-300 mm f/2.8 APO EX DG OS HSM review - Image resolution - Lenstip.com</a><a href="http://www.lenstip.com/221.4-Lens_review-Sigma_300_mm_f_2.8_EX_DG_HSM_APO_Image_resolution.html" target="_blank">Sigma 300 mm f/2.8 EX DG HSM APO review - Image resolution - Lenstip.com</a>any experience&gt;?</blockquote>

[QUOTE="kiwi86, post: 130479, member: 13164"] what lens to use with 2.0 teleconverter? sigma 300 mm 2.8 or sigma 120-300 mm 2.8 OS? which is sharper (it would be logical prime but.. a lot of people said zoom) and how much should be closed aperture? f/7.1-f/8… [url=http://www.the-digital-picture.com/Reviews/ISO-12233-Sample-Crops.aspx?Lens=803&Camera=453&Sample=0&FLI=7&API=4&LensComp=381&CameraComp=9&SampleComp=0&FLIComp=3&APIComp=4]Sigma 120-300mm f/2.8 EX DG OS HSM Lens Image Quality[/url] [url=http://www.lenstip.com/342.4-Lens_review-Sigma_120-300_mm_f_2.8_APO_EX_DG_OS_HSM_Image_resolution.html]Sigma 120-300 mm f/2.8 APO EX DG OS HSM review - Image resolution - Lenstip.com[/url] [url=http://www.lenstip.com/221.4-Lens_review-Sigma_300_mm_f_2.8_EX_DG_HSM_APO_Image_resolution.html]Sigma 300 mm f/2.8 EX DG HSM APO review - Image resolution - Lenstip.com[/url] any experience>? [/QUOTE]

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