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Hot Spot—2nd Sample

This page supplements the original page, which used the Nikon D3x and the first sample of the 70-200VR2.

Testing the second sample of the 70-200VR on the Nikon D3s demonstrates two things clearly:

  1. The hot spot occurs on both the D3s and D3x, so it is a general optical flaw;
  2. The 2nd sample has only the barest trace of a hot spot, indicating that the first sample is not only a bad sample in terms of hot-spotting, but that the hot spot might be related to poor assembly quality, which also results in the observed right-side blur.

A series of examples is shown here, using both the original and replacement sample.

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AB comparison image
Aperture series 2.8, 4 available in full article
f/2.8 <=== f/4
Original Sample

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