Its taking time, but an increasing number of cameras are now offering the capability of adjusting auto-focus in the camera’s menu. This is very useful to users who depend on auto-focus. And a number of these cameras allow you to set corrections on a per-lens basis, so that each lens is individually adjusted.
I now shoot with the Canon 5D Mark lll, which is the first camera I’ve used which provides auto-focus so good that I actually use it for the majority of my shooting. The Mark lll offers another first: it allows the user to set different auto-focus adjustments at each end of the zoom range of zoom lenses. Given that one adjustment might not be right for all focal lengths, this is a welcome addition. I could even envision, in the future, offering adjustment setting for both end of the f:stop range as well.
But just how do you make all these auto-focus micro adjustments? There are a number of methods, and a couple of tools on the market specifically to assist with this process. But by far the simplest, and the easiest to read, is Datacolor’s SpyderLensCal. I won’t go into detail here about using LensCal, but once you get the general idea of the process (get the sweet-spot at zero, set-up further away for longer lenses, etc) its fairly straightforward.
My research today into the camera models now supporting auto-focus micro adjustment resulted in the list of 34 models shown below. Keep in mind that a tool like LensCal can check the focus on most any camera, but it can only be adjusted by the user if its listed below. Other camera/lens combinations that are clearly out of auto-focus would need to be sent in for adjustment.
- Canon (50D, 7D, 5DMkII, 5DMkIII, 1DMkIII, 1DMkIV, 1DsMkIII, 1Dx, 1Dc)
- Nikon (D7000, D300, D300s, D700, D800, D800E, D3, D3s, D3x, D4)
- Sony (A850, A900, A77, NEX-7/LA-EA2)
- Olympus (E-30, E-620, E-5)
- Pentax (K-20D, K-30, K-5, K-7D, K-2000, K-m, K200D, 645D, K-x, K-r)