Great care has been taken to match the Nikon Adobe Camera Raw 5.3 processing to the Sony raw file. However, where the Sony image exposed at 0.5s, f8, ISO 100, using the Sigma 50mm f1.4 HSM EX DG lens contains the entire tonal range comfortably within the histogram limits the Nikon image appears to be much brighter and with higher contrast. I have therefore reprocessed the files to attempt to remove the difference; this involved setting the Nikon to -1 EV in ACR.


The development parameters were:
WB set to 2850K, 0 Tint
Exposure -1 EV
Recovery 0
Fill Light 0
Black Point 0
Brightness 45
Contrast 25
Tone Curve Medium Contrast
No sharpening
No NR
No CA reduction
No other controls used
sRGB export to Photoshop CS4, file saved at JPEF Level 12 (sorry, this means the file is huge)

The point of focus for both images, using the centre sensor or centre of the focus array, was the ball of wool on the right (pink/pastel hue) aiming just in the middle of the right hand edge of the label.

The Nikon exposure was as metered by the camera, aperture priority auto. The Sony exposure was as metered +0.7 EV.