nikon d4

Back Button Focus

Have you ever heard of using the back button to focus on your DSLR?  It seemed very odd and foreign to me when I first heard of this.  With my finger already depressing the shutter ½ way down to focus it was easy to actuate the shutter.  The thought of adding an extra step in how I shoot make very little sense to me.  Still, I kept hearing about this back button focus thing.  So I decided to give it a try.  Here is what I discovered