11-26-2011, 11:23 AM
[quote name='Studor13' timestamp='1322230147' post='13231']
"The poor sharpness on the left and the center green bottle could be a result of the backfocus".
I'm fairly certain that this is the case so in the worse case scenario I will be able to get center and right-hand side to be OK, once the lens is serviced. But the problem as you can see is that something is seriously wrong on the left-hand side. I have f5.6 and f8 samples and they confirm the problem. (The 16-35 image was at f4, the 18-55 at f4.5).
Incidentally, I had the AF Fine-Tune at +9. I tried all the way to +20, but beyond +10 the image fell apart.
[/quote]
Hi Studor,
Not in any way suggesting the lens doesn't have problems, but is that the right direction for the fine-tuning adjustment with your camera?
On my D7000 positive fine-tuning values move the focus point further away from the camera, negative values bring it closer
Ian
"The poor sharpness on the left and the center green bottle could be a result of the backfocus".
I'm fairly certain that this is the case so in the worse case scenario I will be able to get center and right-hand side to be OK, once the lens is serviced. But the problem as you can see is that something is seriously wrong on the left-hand side. I have f5.6 and f8 samples and they confirm the problem. (The 16-35 image was at f4, the 18-55 at f4.5).
Incidentally, I had the AF Fine-Tune at +9. I tried all the way to +20, but beyond +10 the image fell apart.
[/quote]
Hi Studor,
Not in any way suggesting the lens doesn't have problems, but is that the right direction for the fine-tuning adjustment with your camera?
On my D7000 positive fine-tuning values move the focus point further away from the camera, negative values bring it closer
Ian