Now here is the final load of Siemens-stars. All done with intitial AF at f/1.4 then switching off AF and taking the aperture sequence to f/8.0 from that setting. This is to prevent incomparabilities within the aperture-sequence from focus-shift.
We start with the sharpest of the sharpest: f/8 and then go down one stop each row to f/1.4!
To the left is the centre-crop, to the right the corner crop. Keep in mind though that I'm still testing with a lowly DX-format body, so there can be no implication whatsoever on how well the lens performs in the corners of the brand-spanking new D3x!
Following is the second try
after some manual focus fine-tuning*
Finishing this series is the old AF 50/1.4D
You can clearly see the sharpness of the lens deteriorate below f/2.8. But look at that 2nd and 3rd last row of crops: They are done at f/1.4
! For this aperture the performance counts as "very good" in my book.
If you compare these crops to the crops of the Nikkor AF 50/1.4D (last row) you'll find though that the new lens is not necessarily sharper than the old one.
* This counts as "cheating" in my book as you normally don't have the time to rely on manual focus. And don't think you can do this through the viewfinder: never ever! You need to do live-view from a tripod and manually focus the lens
Thomas (beware: Nikon-fanboy and moderator!) My Lens Reviews
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