06-02-2014, 11:53 PM
I don't know Focal, I use lensAlign + focustune. My guess for the different RGB graphs is the quality of the light source, but it really is only guessing. For focustune I have to set ip for monochrome.
Another Sigma (24-105/4 Art) pretends to be a Micro Nikkor 105/2.8 which is a bit annoying because the two need different AFMA.
I also fiddled with the value but went back to lensalign and created some test rows. On D800, I decided to see +6 as the best result for 300cm
![[Image: i-kNRZQs2-M.jpg]](http://sojujo.smugmug.com/photos/i-kNRZQs2/0/M/i-kNRZQs2-M.jpg)
Always impressive to me: How unreliable AF really is :wacko:
I went on and adjusted the other 3 distances by using the dock. Rechecking is always a good idea, but so far I'm satisfied with the results. Now I went on and tried to test AFMA for D7100.
That's where I stopped and placed a question on Michael Tape's board, because this line was expected to be a curve:
![[Image: i-qhtjKs7-M.jpg]](http://sojujo.smugmug.com/photos/i-qhtjKs7/0/M/i-qhtjKs7-M.jpg)
AFMA is on and the software got various AFMA values but the result isn't changing. I wonder what the explanation will be.
Another Sigma (24-105/4 Art) pretends to be a Micro Nikkor 105/2.8 which is a bit annoying because the two need different AFMA.
I also fiddled with the value but went back to lensalign and created some test rows. On D800, I decided to see +6 as the best result for 300cm
Always impressive to me: How unreliable AF really is :wacko:
I went on and adjusted the other 3 distances by using the dock. Rechecking is always a good idea, but so far I'm satisfied with the results. Now I went on and tried to test AFMA for D7100.
That's where I stopped and placed a question on Michael Tape's board, because this line was expected to be a curve:
AFMA is on and the software got various AFMA values but the result isn't changing. I wonder what the explanation will be.