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Nikon DSLR Cameras
D7100
Sigma or Tamron
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<blockquote data-quote="kamaccord" data-source="post: 316673" data-attributes="member: 15333"><p>I too own the Sigma 17-50mm f2.8 and really enjoy this amazing lens. Check the DXO comparison.</p><p></p><p>You may even wish to consider the review of the Sigma 17-50mm by Thom Hogan.</p><p><a href="http://www.bythom.com/Sigma17-50mm_lens_review.htm" target="_blank">http://www.bythom.com/Sigma17-50mm_lens_review.htm</a></p><p></p><p></p><p></p><p><span style="color: #3C3C3C"><span style="font-family: 'arial'"><strong>Sigma 17-50mm F2.8 EX DC OS HSM Nikon versus Tamron SP AF 17-50mm F/2.8 XR Di II LD Aspherical [IF] Nikon versus Nikkor AF-S DX Zoom-Nikkor 17-55mm f/2.8G IF-ED</strong></span></span></p><p><span style="color: #3C3C3C"><span style="font-family: 'arial'"></span></span></p><p><span style="color: #3C3C3C"><span style="font-family: 'arial'">Scores and measurements are available only for tested lenses. For preview lenses, you can compare their specs.</span></span></p><p><span style="color: #3C3C3C"><span style="font-family: 'arial'"><span style="color: #222222"><span style="font-family: 'Arial'"></span></span></span></span></p><p><span style="color: #3C3C3C"><span style="font-family: 'arial'"><span style="color: #222222"><span style="font-family: 'Arial'"> <ul> <li data-xf-list-type="ul"><a href="http://www.dxomark.com/Lenses/Compare/Side-by-side/17-50mm-f-2.8-EX-DC-OS-HSM-Nikon-on-Nikon-D7100-versus-SP-AF-17-50mm-f-2.8-XR-Di-II-LD-IF-Nikon-on-Nikon-D7100-versus-AF-S-DX-Zoom-Nikkor-17-55mm-f-2.8G-IF-ED-on-Nikon-D7100___377_865_186_865_173_865#tabs-1" target="_blank">Scores</a></li> <li data-xf-list-type="ul"><a href="http://www.dxomark.com/Lenses/Compare/Side-by-side/17-50mm-f-2.8-EX-DC-OS-HSM-Nikon-on-Nikon-D7100-versus-SP-AF-17-50mm-f-2.8-XR-Di-II-LD-IF-Nikon-on-Nikon-D7100-versus-AF-S-DX-Zoom-Nikkor-17-55mm-f-2.8G-IF-ED-on-Nikon-D7100___377_865_186_865_173_865#tabs-4" target="_blank">Specs</a></li> <li data-xf-list-type="ul"><a href="http://www.dxomark.com/Lenses/Compare/Side-by-side/17-50mm-f-2.8-EX-DC-OS-HSM-Nikon-on-Nikon-D7100-versus-SP-AF-17-50mm-f-2.8-XR-Di-II-LD-IF-Nikon-on-Nikon-D7100-versus-AF-S-DX-Zoom-Nikkor-17-55mm-f-2.8G-IF-ED-on-Nikon-D7100___377_865_186_865_173_865#tabs-2" target="_blank">Measurements</a></li> <li data-xf-list-type="ul"><a href="http://www.dxomark.com/Lenses/Compare/Side-by-side/17-50mm-f-2.8-EX-DC-OS-HSM-Nikon-on-Nikon-D7100-versus-SP-AF-17-50mm-f-2.8-XR-Di-II-LD-IF-Nikon-on-Nikon-D7100-versus-AF-S-DX-Zoom-Nikkor-17-55mm-f-2.8G-IF-ED-on-Nikon-D7100___377_865_186_865_173_865#tabs-5" target="_blank">Cameras tested with this lens</a></li> </ul><p><span style="color: #1156A0"><strong>Sigma 17-50mm F2.8 EX DC OS HSM Nikon</strong></span></span></span></span></span></p><p><span style="color: #3C3C3C"><span style="font-family: 'arial'"><span style="color: #222222"><span style="font-family: 'Arial'"><img src="http://www.dxomark.com/dakdata/measures/Optics/Sigma_17_50mm_f28_EX_DC_OS_HSM_Nikon/Marketing_PV/Sigma_17_50mm_f28_EX_DC_OS_HSM_Nikon_medium.png" alt="" class="fr-fic fr-dii fr-draggable " style="" /></span></span></span></span></p><p><span style="color: #3C3C3C"><span style="font-family: 'arial'"><span style="color: #222222"><span style="font-family: 'Arial'"></span></span></span></span></p><p><span style="color: #3C3C3C"><span style="font-family: 'arial'"><span style="color: #222222"><span style="font-family: 'Arial'"></span></span></span></span></p><p><span style="color: #3C3C3C"><span style="font-family: 'arial'"><span style="color: #222222"><span style="font-family: 'Arial'"><span style="color: #999999"><img src="http://www.dxomark.com/design/ezwebin/images/boutons_optics/symbolecam.png" alt="" class="fr-fic fr-dii fr-draggable " style="" /></span></span></span></span></span></p><p><span style="color: #3C3C3C"><span style="font-family: 'arial'"><span style="color: #222222"><span style="font-family: 'Arial'"><span style="color: #999999">Nikon D40XNikon D300Nikon D90Nikon D200Nikon D60Nikon D7000Nikon D300sNikon D5000Nikon D7100Nikon D5200Nikon D3200Nikon D5300Nikon D3300</span></span></span></span></span></p><p><span style="color: #3C3C3C"><span style="font-family: 'arial'"><span style="color: #222222"><span style="font-family: 'Arial'"></span></span></span></span></p><p><span style="color: #3C3C3C"><span style="font-family: 'arial'"><span style="color: #222222"><span style="font-family: 'Arial'"> <table style='width: 100%'><tr><td><strong>DxOMark Score</strong><br /> </td><td></td> <tr><td>Best at f=50mm & f/2.8<a href="http://www.dxomark.com/index.php/en/About/Glossary/Help/DxOMark-Score-for-lens" target="_blank">[?]</a></td><td>20<br /> <br /> <br /> </td></tr></table><p></span></span></span></span></p><p><span style="color: #3C3C3C"><span style="font-family: 'arial'"><span style="color: #222222"><span style="font-family: 'Arial'"> <table style='width: 100%'><tr><td><strong>Lens Metric Scores</strong><br /> </td><td></td> <tr><td>Sharpness<br /> <a href="http://www.dxomark.com/index.php/en/About/Glossary/Help/Sharpness-score" target="_blank">[?]</a></td><td>14P-Mpix<br /> </td></tr><tr><td>Transmission<br /> <a href="http://www.dxomark.com/index.php/en/About/Glossary/Help/Transmission-score" target="_blank">[?]</a></td><td>3.3TStop<br /> </td></tr><tr><td>Distortion<br /> <a href="http://www.dxomark.com/index.php/en/About/Glossary/Help/Distortion-score" target="_blank">[?]</a></td><td>0.3%<br /> </td></tr><tr><td>Vignetting<br /> <a href="http://www.dxomark.com/index.php/en/About/Glossary/Help/Vignetting-score" target="_blank">[?]</a></td><td>-1.1EV<br /> </td></tr><tr><td>Chr. aberration<br /> <a href="http://www.dxomark.com/index.php/en/About/Glossary/Help/Chr.-aberration-score" target="_blank">[?]</a></td><td>10µm<br /> </td></tr></table><p></span></span></span></span></p><p><span style="color: #3C3C3C"><span style="font-family: 'arial'"><span style="color: #222222"><span style="font-family: 'Arial'"></span></span></span></span></p><p><span style="color: #3C3C3C"><span style="font-family: 'arial'"><span style="color: #222222"><span style="font-family: 'Arial'"><a href="http://www.dxomark.com/" target="_blank"><img src="http://www.dxomark.com/dakdata/fond/logo.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></a></span></span></span></span></p><p><span style="color: #3C3C3C"><span style="font-family: 'arial'"><span style="color: #222222"><span style="font-family: 'Arial'"></span></span></span></span></p><p><span style="color: #3C3C3C"><span style="font-family: 'arial'"><span style="color: #222222"><span style="font-family: 'Arial'"></span></span></span></span></p><p><span style="color: #3C3C3C"><span style="font-family: 'arial'"><span style="color: #222222"><span style="font-family: 'Arial'"><span style="color: #1156A0"><strong>Tamron SP AF 17-50mm F/2.8 XR Di II LD Aspherical [IF] Nikon</strong></span></span></span></span></span></p><p><span style="color: #3C3C3C"><span style="font-family: 'arial'"><span style="color: #222222"><span style="font-family: 'Arial'"><img src="http://www.dxomark.com/dakdata/measures/Optics/Tamron_SP_AF_17_50mm_f28_XR_Di_II_LD_IF_Nikon/Marketing_PV/Tamron_SP_AF_17_50mm_f28_XR_Di_II_LD_IF_Nikon_medium.png" alt="" class="fr-fic fr-dii fr-draggable " style="" /></span></span></span></span></p><p><span style="color: #3C3C3C"><span style="font-family: 'arial'"><span style="color: #222222"><span style="font-family: 'Arial'"></span></span></span></span></p><p><span style="color: #3C3C3C"><span style="font-family: 'arial'"><span style="color: #222222"><span style="font-family: 'Arial'"></span></span></span></span></p><p><span style="color: #3C3C3C"><span style="font-family: 'arial'"><span style="color: #222222"><span style="font-family: 'Arial'"><span style="color: #999999"><img src="http://www.dxomark.com/design/ezwebin/images/boutons_optics/symbolecam.png" alt="" class="fr-fic fr-dii fr-draggable " style="" /></span></span></span></span></span></p><p><span style="color: #3C3C3C"><span style="font-family: 'arial'"><span style="color: #222222"><span style="font-family: 'Arial'"><span style="color: #999999">Nikon D90Nikon D40XNikon D60Nikon D300Nikon D5000Nikon D200Nikon D300sNikon D7000Nikon D7100Nikon D5200Nikon D3200Nikon D5300Nikon D3300</span></span></span></span></span></p><p><span style="color: #3C3C3C"><span style="font-family: 'arial'"><span style="color: #222222"><span style="font-family: 'Arial'"></span></span></span></span></p><p><span style="color: #3C3C3C"><span style="font-family: 'arial'"><span style="color: #222222"><span style="font-family: 'Arial'"> <table style='width: 100%'><tr><td><strong>DxOMark Score</strong><br /> </td><td></td> <tr><td>Best at f=24mm & f/3.5<a href="http://www.dxomark.com/index.php/en/About/Glossary/Help/DxOMark-Score-for-lens" target="_blank">[?]</a></td><td>18<br /> <br /> <br /> </td></tr></table><p></span></span></span></span></p><p><span style="color: #3C3C3C"><span style="font-family: 'arial'"><span style="color: #222222"><span style="font-family: 'Arial'"> <table style='width: 100%'><tr><td><strong>Lens Metric Scores</strong><br /> </td><td></td> <tr><td>Sharpness<br /> <a href="http://www.dxomark.com/index.php/en/About/Glossary/Help/Sharpness-score" target="_blank">[?]</a></td><td>12P-Mpix<br /> </td></tr><tr><td>Transmission<br /> <a href="http://www.dxomark.com/index.php/en/About/Glossary/Help/Transmission-score" target="_blank">[?]</a></td><td>3.3TStop<br /> </td></tr><tr><td>Distortion<br /> <a href="http://www.dxomark.com/index.php/en/About/Glossary/Help/Distortion-score" target="_blank">[?]</a></td><td>0.4%<br /> </td></tr><tr><td>Vignetting<br /> <a href="http://www.dxomark.com/index.php/en/About/Glossary/Help/Vignetting-score" target="_blank">[?]</a></td><td>-1EV<br /> </td></tr><tr><td>Chr. aberration<br /> <a href="http://www.dxomark.com/index.php/en/About/Glossary/Help/Chr.-aberration-score" target="_blank">[?]</a></td><td>5µm<br /> </td></tr></table><p></span></span></span></span></p><p><span style="color: #3C3C3C"><span style="font-family: 'arial'"><span style="color: #222222"><span style="font-family: 'Arial'"></span></span></span></span></p><p><span style="color: #3C3C3C"><span style="font-family: 'arial'"><span style="color: #222222"><span style="font-family: 'Arial'"><a href="http://www.dxomark.com/" target="_blank"><img src="http://www.dxomark.com/dakdata/fond/logo.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></a></span></span></span></span></p><p><span style="color: #3C3C3C"><span style="font-family: 'arial'"><span style="color: #222222"><span style="font-family: 'Arial'"></span></span></span></span></p><p><span style="color: #3C3C3C"><span style="font-family: 'arial'"><span style="color: #222222"><span style="font-family: 'Arial'"></span></span></span></span></p><p><span style="color: #3C3C3C"><span style="font-family: 'arial'"><span style="color: #222222"><span style="font-family: 'Arial'"><span style="color: #1156A0"><strong>Nikon AF-S DX Zoom-Nikkor 17-55mm f/2.8G IF-ED</strong></span></span></span></span></span></p><p><span style="color: #3C3C3C"><span style="font-family: 'arial'"><span style="color: #222222"><span style="font-family: 'Arial'"><img src="http://www.dxomark.com/dakdata/measures/Optics/Nikkor_AF_S_DX_Zoom_Nikkor_17_55mm_f28G_IF_ED/Marketing_PV/Nikkor_AF_S_DX_Zoom_Nikkor_17_55mm_f28G_IF_ED_medium.png" alt="" class="fr-fic fr-dii fr-draggable " style="" /></span></span></span></span></p><p><span style="color: #3C3C3C"><span style="font-family: 'arial'"><span style="color: #222222"><span style="font-family: 'Arial'"></span></span></span></span></p><p><span style="color: #3C3C3C"><span style="font-family: 'arial'"><span style="color: #222222"><span style="font-family: 'Arial'"></span></span></span></span></p><p><span style="color: #3C3C3C"><span style="font-family: 'arial'"><span style="color: #222222"><span style="font-family: 'Arial'"><span style="color: #999999"><img src="http://www.dxomark.com/design/ezwebin/images/boutons_optics/symbolecam.png" alt="" class="fr-fic fr-dii fr-draggable " style="" /></span></span></span></span></span></p><p><span style="color: #3C3C3C"><span style="font-family: 'arial'"><span style="color: #222222"><span style="font-family: 'Arial'"><span style="color: #999999">Nikon D90Nikon D40XNikon D60Nikon D300Nikon D5000Nikon D200Nikon D300sNikon D7000Nikon D7100Nikon D5200Nikon D3200Nikon D5300Nikon D3300</span></span></span></span></span></p><p><span style="color: #3C3C3C"><span style="font-family: 'arial'"><span style="color: #222222"><span style="font-family: 'Arial'"></span></span></span></span></p><p><span style="color: #3C3C3C"><span style="font-family: 'arial'"><span style="color: #222222"><span style="font-family: 'Arial'"> <table style='width: 100%'><tr><td><strong>DxOMark Score</strong><br /> </td><td></td> <tr><td>Best at f=28mm & f/2.8<a href="http://www.dxomark.com/index.php/en/About/Glossary/Help/DxOMark-Score-for-lens" target="_blank">[?]</a></td><td>19<br /> <br /> <br /> </td></tr></table><p></span></span></span></span></p><p><span style="color: #3C3C3C"><span style="font-family: 'arial'"><span style="color: #222222"><span style="font-family: 'Arial'"> <table style='width: 100%'><tr><td><strong>Lens Metric Scores</strong><br /> </td><td></td> <tr><td>Sharpness<br /> <a href="http://www.dxomark.com/index.php/en/About/Glossary/Help/Sharpness-score" target="_blank">[?]</a></td><td>9P-Mpix<br /> </td></tr><tr><td>Transmission<br /> <a href="http://www.dxomark.com/index.php/en/About/Glossary/Help/Transmission-score" target="_blank">[?]</a></td><td>3.4TStop<br /> </td></tr><tr><td>Distortion<br /> <a href="http://www.dxomark.com/index.php/en/About/Glossary/Help/Distortion-score" target="_blank">[?]</a></td><td>0.4%<br /> </td></tr><tr><td>Vignetting<br /> <a href="http://www.dxomark.com/index.php/en/About/Glossary/Help/Vignetting-score" target="_blank">[?]</a></td><td>-0.9EV<br /> </td></tr><tr><td>Chr. aberration<br /> <a href="http://www.dxomark.com/index.php/en/About/Glossary/Help/Chr.-aberration-score" target="_blank">[?]</a></td><td>14µm<br /> </td></tr></table><p></span></span></span></span></p><p><span style="color: #3C3C3C"><span style="font-family: 'arial'"><span style="color: #222222"><span style="font-family: 'Arial'"></span></span></span></span></p><p><span style="color: #3C3C3C"><span style="font-family: 'arial'"><span style="color: #222222"><span style="font-family: 'Arial'"><a href="http://www.dxomark.com/" target="_blank"><img src="http://www.dxomark.com/dakdata/fond/logo.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></a></span></span></span></span></p><p><span style="color: #3C3C3C"><span style="font-family: 'arial'"><span style="color: #222222"><span style="font-family: 'Arial'"></span></span></span></span></p><p><span style="color: #3C3C3C"><span style="font-family: 'arial'"><span style="color: #222222"><span style="font-family: 'Arial'"></span></span></span></span></p><p><span style="color: #3C3C3C"><span style="font-family: 'arial'"><span style="color: #222222"><span style="font-family: 'Arial'"></span></span></span></span></p><p><span style="color: #3C3C3C"><span style="font-family: 'arial'"><span style="color: #222222"><span style="font-family: 'Arial'"></span></span></span></span></p><p><span style="color: #3C3C3C"><span style="font-family: 'arial'"><span style="color: #222222"><span style="font-family: 'Arial'"></span></span></span></span></p><p><span style="color: #3C3C3C"><span style="font-family: 'arial'"><span style="color: #222222"><span style="font-family: 'Arial'"></span></span></span></span></p><p><span style="color: #3C3C3C"><span style="font-family: 'arial'"><span style="color: #222222"><span style="font-family: 'Arial'"></span></span></span></span></p><p><span style="color: #3C3C3C"><span style="font-family: 'arial'"></span></span></p><p><span style="color: #3C3C3C"><span style="font-family: 'arial'"></span></span></p><p><span style="color: #3C3C3C"><span style="font-family: 'arial'"></span></span></p><p><span style="color: #3C3C3C"><span style="font-family: 'arial'"></span></span></p><p><span style="color: #3C3C3C"><span style="font-family: 'arial'"></span></span></p><p><span style="color: #3C3C3C"><span style="font-family: 'arial'"></span></span></p><p><span style="color: #3C3C3C"><span style="font-family: 'arial'"></span></span></p><p><span style="color: #3C3C3C"><span style="font-family: 'arial'"></span></span></p><p><span style="color: #3C3C3C"><span style="font-family: 'arial'"></span></span></p></blockquote><p></p>
[QUOTE="kamaccord, post: 316673, member: 15333"] I too own the Sigma 17-50mm f2.8 and really enjoy this amazing lens. Check the DXO comparison. You may even wish to consider the review of the Sigma 17-50mm by Thom Hogan. [URL]http://www.bythom.com/Sigma17-50mm_lens_review.htm[/URL] [COLOR=#3C3C3C][FONT=arial][B]Sigma 17-50mm F2.8 EX DC OS HSM Nikon versus Tamron SP AF 17-50mm F/2.8 XR Di II LD Aspherical [IF] Nikon versus Nikkor AF-S DX Zoom-Nikkor 17-55mm f/2.8G IF-ED[/B] Scores and measurements are available only for tested lenses. For preview lenses, you can compare their specs. [COLOR=#222222][FONT=Arial] [LIST] [*][URL="http://www.dxomark.com/Lenses/Compare/Side-by-side/17-50mm-f-2.8-EX-DC-OS-HSM-Nikon-on-Nikon-D7100-versus-SP-AF-17-50mm-f-2.8-XR-Di-II-LD-IF-Nikon-on-Nikon-D7100-versus-AF-S-DX-Zoom-Nikkor-17-55mm-f-2.8G-IF-ED-on-Nikon-D7100___377_865_186_865_173_865#tabs-1"]Scores[/URL] [*][URL="http://www.dxomark.com/Lenses/Compare/Side-by-side/17-50mm-f-2.8-EX-DC-OS-HSM-Nikon-on-Nikon-D7100-versus-SP-AF-17-50mm-f-2.8-XR-Di-II-LD-IF-Nikon-on-Nikon-D7100-versus-AF-S-DX-Zoom-Nikkor-17-55mm-f-2.8G-IF-ED-on-Nikon-D7100___377_865_186_865_173_865#tabs-4"]Specs[/URL] [*][URL="http://www.dxomark.com/Lenses/Compare/Side-by-side/17-50mm-f-2.8-EX-DC-OS-HSM-Nikon-on-Nikon-D7100-versus-SP-AF-17-50mm-f-2.8-XR-Di-II-LD-IF-Nikon-on-Nikon-D7100-versus-AF-S-DX-Zoom-Nikkor-17-55mm-f-2.8G-IF-ED-on-Nikon-D7100___377_865_186_865_173_865#tabs-2"]Measurements[/URL] [*][URL="http://www.dxomark.com/Lenses/Compare/Side-by-side/17-50mm-f-2.8-EX-DC-OS-HSM-Nikon-on-Nikon-D7100-versus-SP-AF-17-50mm-f-2.8-XR-Di-II-LD-IF-Nikon-on-Nikon-D7100-versus-AF-S-DX-Zoom-Nikkor-17-55mm-f-2.8G-IF-ED-on-Nikon-D7100___377_865_186_865_173_865#tabs-5"]Cameras tested with this lens[/URL] [/LIST] [COLOR=#1156A0][B]Sigma 17-50mm F2.8 EX DC OS HSM Nikon[/B][/COLOR] [IMG]http://www.dxomark.com/dakdata/measures/Optics/Sigma_17_50mm_f28_EX_DC_OS_HSM_Nikon/Marketing_PV/Sigma_17_50mm_f28_EX_DC_OS_HSM_Nikon_medium.png[/IMG] [COLOR=#999999][IMG]http://www.dxomark.com/design/ezwebin/images/boutons_optics/symbolecam.png[/IMG][/COLOR] [COLOR=#999999]Nikon D40XNikon D300Nikon D90Nikon D200Nikon D60Nikon D7000Nikon D300sNikon D5000Nikon D7100Nikon D5200Nikon D3200Nikon D5300Nikon D3300[/COLOR] [TABLE="class: descriptiftabvert, width: 243"] [TR] [TD="class: descriptif_header, bgcolor: #F4F4F4, colspan: 2"][B]DxOMark Score[/B] [/TD] [/TR] [TR] [TD="class: descriptifgauche, bgcolor: #FCFCFC"]Best at f=50mm & f/2.8[URL="http://www.dxomark.com/index.php/en/About/Glossary/Help/DxOMark-Score-for-lens"][?][/URL][/TD] [TD="class: descriptif_data"]20 [/TD] [/TR] [/TABLE] [TABLE="class: descriptiftabvert, width: 243"] [TR] [TD="class: descriptif_header, bgcolor: #F4F4F4, colspan: 2"][B]Lens Metric Scores[/B] [/TD] [/TR] [TR] [TD="class: descriptifgauche, bgcolor: #FCFCFC"]Sharpness [URL="http://www.dxomark.com/index.php/en/About/Glossary/Help/Sharpness-score"][?][/URL][/TD] [TD="class: descriptif_data"]14P-Mpix [/TD] [/TR] [TR] [TD="class: descriptifgauche, bgcolor: #FCFCFC"]Transmission [URL="http://www.dxomark.com/index.php/en/About/Glossary/Help/Transmission-score"][?][/URL][/TD] [TD="class: descriptif_data"]3.3TStop [/TD] [/TR] [TR] [TD="class: descriptifgauche, bgcolor: #FCFCFC"]Distortion [URL="http://www.dxomark.com/index.php/en/About/Glossary/Help/Distortion-score"][?][/URL][/TD] [TD="class: descriptif_data"]0.3% [/TD] [/TR] [TR] [TD="class: descriptifgauche, bgcolor: #FCFCFC"]Vignetting [URL="http://www.dxomark.com/index.php/en/About/Glossary/Help/Vignetting-score"][?][/URL][/TD] [TD="class: descriptif_data"]-1.1EV [/TD] [/TR] [TR] [TD="class: descriptifgauche, bgcolor: #FCFCFC"]Chr. aberration [URL="http://www.dxomark.com/index.php/en/About/Glossary/Help/Chr.-aberration-score"][?][/URL][/TD] [TD="class: descriptif_data"]10µm [/TD] [/TR] [/TABLE] [URL="http://www.dxomark.com/"][IMG]http://www.dxomark.com/dakdata/fond/logo.jpg[/IMG][/URL] [COLOR=#1156A0][B]Tamron SP AF 17-50mm F/2.8 XR Di II LD Aspherical [IF] Nikon[/B][/COLOR] [IMG]http://www.dxomark.com/dakdata/measures/Optics/Tamron_SP_AF_17_50mm_f28_XR_Di_II_LD_IF_Nikon/Marketing_PV/Tamron_SP_AF_17_50mm_f28_XR_Di_II_LD_IF_Nikon_medium.png[/IMG] [COLOR=#999999][IMG]http://www.dxomark.com/design/ezwebin/images/boutons_optics/symbolecam.png[/IMG][/COLOR] [COLOR=#999999]Nikon D90Nikon D40XNikon D60Nikon D300Nikon D5000Nikon D200Nikon D300sNikon D7000Nikon D7100Nikon D5200Nikon D3200Nikon D5300Nikon D3300[/COLOR] [TABLE="class: descriptiftabvert, width: 243"] [TR] [TD="class: descriptif_header, bgcolor: #F4F4F4, colspan: 2"][B]DxOMark Score[/B] [/TD] [/TR] [TR] [TD="class: descriptifgauche, bgcolor: #FCFCFC"]Best at f=24mm & f/3.5[URL="http://www.dxomark.com/index.php/en/About/Glossary/Help/DxOMark-Score-for-lens"][?][/URL][/TD] [TD="class: descriptif_data"]18 [/TD] [/TR] [/TABLE] [TABLE="class: descriptiftabvert, width: 243"] [TR] [TD="class: descriptif_header, bgcolor: #F4F4F4, colspan: 2"][B]Lens Metric Scores[/B] [/TD] [/TR] [TR] [TD="class: descriptifgauche, bgcolor: #FCFCFC"]Sharpness [URL="http://www.dxomark.com/index.php/en/About/Glossary/Help/Sharpness-score"][?][/URL][/TD] [TD="class: descriptif_data"]12P-Mpix [/TD] [/TR] [TR] [TD="class: descriptifgauche, bgcolor: #FCFCFC"]Transmission [URL="http://www.dxomark.com/index.php/en/About/Glossary/Help/Transmission-score"][?][/URL][/TD] [TD="class: descriptif_data"]3.3TStop [/TD] [/TR] [TR] [TD="class: descriptifgauche, bgcolor: #FCFCFC"]Distortion [URL="http://www.dxomark.com/index.php/en/About/Glossary/Help/Distortion-score"][?][/URL][/TD] [TD="class: descriptif_data"]0.4% [/TD] [/TR] [TR] [TD="class: descriptifgauche, bgcolor: #FCFCFC"]Vignetting [URL="http://www.dxomark.com/index.php/en/About/Glossary/Help/Vignetting-score"][?][/URL][/TD] [TD="class: descriptif_data"]-1EV [/TD] [/TR] [TR] [TD="class: descriptifgauche, bgcolor: #FCFCFC"]Chr. aberration [URL="http://www.dxomark.com/index.php/en/About/Glossary/Help/Chr.-aberration-score"][?][/URL][/TD] [TD="class: descriptif_data"]5µm [/TD] [/TR] [/TABLE] [URL="http://www.dxomark.com/"][IMG]http://www.dxomark.com/dakdata/fond/logo.jpg[/IMG][/URL] [COLOR=#1156A0][B]Nikon AF-S DX Zoom-Nikkor 17-55mm f/2.8G IF-ED[/B][/COLOR] [IMG]http://www.dxomark.com/dakdata/measures/Optics/Nikkor_AF_S_DX_Zoom_Nikkor_17_55mm_f28G_IF_ED/Marketing_PV/Nikkor_AF_S_DX_Zoom_Nikkor_17_55mm_f28G_IF_ED_medium.png[/IMG] [COLOR=#999999][IMG]http://www.dxomark.com/design/ezwebin/images/boutons_optics/symbolecam.png[/IMG][/COLOR] [COLOR=#999999]Nikon D90Nikon D40XNikon D60Nikon D300Nikon D5000Nikon D200Nikon D300sNikon D7000Nikon D7100Nikon D5200Nikon D3200Nikon D5300Nikon D3300[/COLOR] [TABLE="class: descriptiftabvert, width: 243"] [TR] [TD="class: descriptif_header, bgcolor: #F4F4F4, colspan: 2"][B]DxOMark Score[/B] [/TD] [/TR] [TR] [TD="class: descriptifgauche, bgcolor: #FCFCFC"]Best at f=28mm & f/2.8[URL="http://www.dxomark.com/index.php/en/About/Glossary/Help/DxOMark-Score-for-lens"][?][/URL][/TD] [TD="class: descriptif_data"]19 [/TD] [/TR] [/TABLE] [TABLE="class: descriptiftabvert, width: 243"] [TR] [TD="class: descriptif_header, bgcolor: #F4F4F4, colspan: 2"][B]Lens Metric Scores[/B] [/TD] [/TR] [TR] [TD="class: descriptifgauche, bgcolor: #FCFCFC"]Sharpness [URL="http://www.dxomark.com/index.php/en/About/Glossary/Help/Sharpness-score"][?][/URL][/TD] [TD="class: descriptif_data"]9P-Mpix [/TD] [/TR] [TR] [TD="class: descriptifgauche, bgcolor: #FCFCFC"]Transmission [URL="http://www.dxomark.com/index.php/en/About/Glossary/Help/Transmission-score"][?][/URL][/TD] [TD="class: descriptif_data"]3.4TStop [/TD] [/TR] [TR] [TD="class: descriptifgauche, bgcolor: #FCFCFC"]Distortion [URL="http://www.dxomark.com/index.php/en/About/Glossary/Help/Distortion-score"][?][/URL][/TD] [TD="class: descriptif_data"]0.4% [/TD] [/TR] [TR] [TD="class: descriptifgauche, bgcolor: #FCFCFC"]Vignetting [URL="http://www.dxomark.com/index.php/en/About/Glossary/Help/Vignetting-score"][?][/URL][/TD] [TD="class: descriptif_data"]-0.9EV [/TD] [/TR] [TR] [TD="class: descriptifgauche, bgcolor: #FCFCFC"]Chr. aberration [URL="http://www.dxomark.com/index.php/en/About/Glossary/Help/Chr.-aberration-score"][?][/URL][/TD] [TD="class: descriptif_data"]14µm [/TD] [/TR] [/TABLE] [URL="http://www.dxomark.com/"][IMG]http://www.dxomark.com/dakdata/fond/logo.jpg[/IMG][/URL] [/FONT][/COLOR] [/FONT][/COLOR] 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