One of the great landscape vistas in the U.S. is the Snake River Overlook in the Grand Tetons National Park. At sunrise, the mountains reflect golden light in the Snake River, and especially in winter, the shot is spectacular. At this distance, depth of field is no longer relevant because there are no elements in the immediate foreground. You would see the same depth of field with any lens aperture. It's particularly important to use daylight white balance for sunrise and sunset because this setting produces the golden tones we love so much at these times of day. If you use AWB, the camera 'corrects' the warm tones and makes them neutral. That means the beautiful golden colors are lost and the landscape images are uninspiring. Sure, the color can be brought back in post-processing RAW files, but at the time you're shooting, the pictures look disappointing on the LCD screen. And who wants that? My settings were 1/800, f/7.1, and 1250 ISO.