When shooting on a canyon rim in Canyonlands last weekend, I was unsure of what amount of tilt, if any, to apply to my shot. I employed the iterative method of focusing on the near, tilt to get near bush in focus, etc. I was using an 80mm XL at f32. My result was less than satisfactory. The entire bottom part of the canyon was out of focus. Should I instead have not used tilt and just stopped down the f-stop. Suggestions?