Camera settings are:  Canon 5D mk111, lens 24-105, F22, 10 second exposure, ISO 200.

To get everything in sharp focus, from the rocks in front to the waterfall,  Dan takes several shots at different exposures and focusing on different parts of the photo. For example, one shot could focus on the rocks in the foreground, another midway back, and a third on the waterfall (although Dan usually takes more, I am simplifying a lot). Then in Photoshop you could open the photo with the focus on the waterfall and the one with the focus on the rocks. You would select the rock and water area in the photo where the rocks are in focus; copy it to a layer, then move it into the other photograph. Keeping the waterfall focus photo open; then open the photo where the focus is midway back and do the same. Sounds a bit complicated doesn’t it! But if you try it using, say, two photos; one with the focus in the front and one with the focus in the back it’s not so hard. You end up with a photo that is tack sharp front to back. This also allows you to use objects, like the rocks, close up in the foreground of the photo to add interest.