This comparison is the same as with the Nikon D3s, but with the 24 megapixel Nikon D3x (tripod not moved).
Ten frames were shot on a tripod. For each frame, the 24/1.4G was defocused, then autofocus was allowed to complete. I always set my cameras to disallow shutter release unless the AF can lock on, so there is zero chance that the camera simply failed to focus. The 11th frame was made using Live View contrast-detect. A slightly different focus mode was used (single AF point to initiate + tracking) , but it has no effect on this test, because the subject doesn’t move.
The focus point was on the superstructure of the bridge as shown with the green rectangle.
Click to view larger versions and crops.
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