Re: D800 AF repair: What repair was done, and what results?
patriot wrote: EL_PIC wrote:
If you did Micro AF adjustment 10 times you would prob get at least 5 differ settings
regardless of any pre or post repair.
Food for Thought ...
Something to that effect posted on DP Review ...glanced at it due to time, but from what I could gather, something about how AF fine tuning numbers are applied yields different results. I\'ll have to read more carefully.
I\'ve never been one to do much testing. In this case I\'m doing far more than ever. One thing I can say, using Lensalign, is that the results are consistent. I\'ve tested multiple times, including moving the set up so I have to re-measure and align. Then, taking the camera outside and trying different real world subjects, I can see where the tuning seems to be consistent with what Lensalign indicates. In other words, +18 and +20 on my 70-200 yield noticeable differences on flowers, trees, as they do on Lensalign.
Micro Adjust is for very specific conditions and not intended for \"general shooting\".
Look at the variables that play into the equation closely and apply to real world ...
Lens, Camera, FL, Distance, F Stop, Temperature, Light wavelength,
RH %, Contrast, Filter.
For General shooting you really only control the first two and three if non zoom.
So good luck with your not to do much testing and Lensalign.
I do not accept Lenes or Cameras that require \"general shooting\"
user calibration nor would any photo engineer.
If you plan to sharpen bird feathers in the field ... Great ...
but the bird will fly away and the weather day conditions will change
long before you are ready.
Aug 04, 2012 at 12:22 PM
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