If you own a DSLR and like to shoot with fast lenses, you're likely acquainted with the procedure known as "autofocus microadjustment." The process is a bit tedious and annoying, but highly useful for those of us who savor that razor-thin depth of field. Thankfully, owners of new Nikon bodies now have the option of having their cameras perform the procedure automatically for them.
I have a serious love/hate relationship with my Canon EF 85mm f/1.2L II. It takes beautiful images, but its autofocus is positively devilish at times. To quote Jane Austen: "Oh! How gladly would I suppose [it] only fickle — very, very fickle." And yet, I still think it conspires against me. Alas. One way to make it slightly better is to perform an autofocus microadjustment. However, this requires a rather cumbersome process that involves test charts, repeated small adjustments, and a fair abundance of squinting.
Enter Nikon. The new D5 and D500 both contain a feature that automates this with no charts or input required. By comparing the autofocus module data to on-sensor data, the camera can automatically detect and compensate for the difference, making the process much quicker and easier. Check out the video above; it takes just a few seconds, as opposed to the ten minutes or so the manual method takes.