Please see the additional examples on the Nikon D3s— sample variation. The problem shown here is apparently sample-specific in degree, and the examples shown are from the first defective sample.
The 70-200VR2 shows a large and diffuse central hot spot at 200mm at f/2.8 when focused at longer distance, but it disappears (darkens) by f/4.
At the time this was written, it was unclear whether the hot spot issue appears at closer focusing distances, other focal lengths. It could even be peculiar to the Nikon D3x, but that seems doubtful.
I used 14-bit lossless-compressed NEF on the D3x, processed in Capture NX 2 version 2.2.3 Mac, all adjustments off, noise reduction off, Daylight, Picture Control = Standard. All images processed into 16-bit TIF.
Article continues for subscribers...
Already a subscriber? CLICK HERE TO LOG IN
Since 2006, Diglloyd Advanced Photography is the authoritative review and reference for DSLRs and their lenses: Canon and Nikon primarily, but also Pentax and some medium format. Reviews of key DSLRs are included, but the primary focus is on lens performance. Also included is a wealth of technique and workflow approaches.
DAP includes thousands of pages of exclusive coverage and high resolution Retina-grade examples detailing Canon and Nikon DSLR bodies and their lenses, with in-depth analysis of sharpness and contrast, color, bokeh, vignetting, distortion, MTF, and flare, behavioral and practical usage.