Birding with a 500mm F4 or 600mm F4

Started Feb 1, 2014 | Discussions thread
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JimPearce
JimPearce Veteran Member • Posts: 8,921
Here's the thing Andy...

http://www.dxomark.com/Lenses/Compare/Side-by-side/Nikon-AF-S-NIKKOR-80-400mm-F45-56G-ED-VR-on-Nikon-D7100-versus-Nikon-AF-S-NIKKOR-80-400mm-F45-56G-ED-VR-on-Nikon-D600-versus-Nikon-AF-S-NIKKOR-300mm-F28G-ED-VR-II-on-Nikon-D7100___1130_865_1130_834_478_865

Now if you look at Measurements, Sharpness, Field Test and set the D7100 at 300mm and f5.6 vs. the D600 at 400mm and f8 the D600 is definitely sharper. Set the D7100 with 300 f2.8 VR at f5.6 and the sharpness in unbelievable. So, even if you set up the test properly (in other words for equivalence: shooting the same subject from the same distance with the same shutter speed and DOF) the D600 should win - on this lens. But your conclusion - that the D7100 offer no reach advantage over the D600 - would still be an unwarranted generalization.

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Jim

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