Upload & Sell: Off
Okay, I just watched the video. Can someone tell me if I'm understanding the process correctly?
I have only one body (5D3) and I'll be using this with the 35. So I would use Focal or Dot Tune to calibrate the lens at four different focus distances: 0.3m, 0.4m, 0.7m and maybe 3m (hard to tell using the scale on their video). I write those values down, but I leave the MFA settings on the camera at 0. Then I attach the Sigma 35 to the dock, and enter the MFA adjustments for each focus distance that I determined with Focal or Dot Tune.
If that's indeed how it works, sounds pretty cool to me—especially because the issue I was having with the first two copies of the Sigma 35 that I tried is that it would nail focus at one distance given a particular MFA value, but not at another. i.e. with an MFA of -3, close-up shots <1m would be in focus, but shots >1M wouldn't be. If I changed the MFA value to -6, it would be the opposite scenario.
So I, for one, am excited about this. The downside would be if I had multiple camera bodies, but I don't and don't anticipate that ever changing.