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Author Topic: How does camera MPx impact on P-Mpix?  (Read 458 times)
Jylppy
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« on: February 23, 2014, 07:36:07 PM »

This a comment for this page on the website
Which one is sharper, Tokina 100mm or Sigma 105mm F2.8  EX DG OS HSM?

Tokina gets 19 P-Mpix on D800, but only 15 P-Mpix on D3X

Sigma 105mm  gets  17 P-Mpix on D800 and 16 P-Mpix on D3X

How do you explain this? Is this due to sample variation among different lenses or what is a reason that one lens is sharper on high-Mpix camera and another on lower M-pix camera?
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Sophie
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« Reply #1 on: February 26, 2014, 10:18:13 AM »

Hi Kumajiroh,

Thanks for your comment and your support to DxOMark. The Tokina is slightly sharper on the D800 sensor. On the D3x sensor, scores are very close. In this case the rounded increase differences.
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