Kansas is on my bucket list.
Mile-long flat surfaces aren't in my wheelhouse, Michael. Around here contour maps are drawn in either 200ft or 500ft intervals, with the darker lines at thousand foot intervals, not in millimeters like in Kansas, where the highest mountain differs every morning depending on what the cattle left behind the day before. But even if a cornfield is the subject, Schiempflug still applies (I just pulled my own copy of Stroebel to check the spelling of that), especially if someone has placed a platform atop their van or truck roof to take advantage of the bigger perspective. The other strategies come into play next. No, not everything ls going to be in perfect focus,
regardless; but that's not the point anyway. The objective is to intelligently control the distribution of focus to the advantage of the composition itself, and not just as a default to what a certain lens can do by itself, with or without some fancy math.
Now out in the Great Basin, Nevada or Death Valley, for example, one does encounter flat playas many miles long, the Bonneville Salt Flats Speedway being a remarkable example of that. I bagged a sudden dramatic moonrise almost by accident near there a few years, which actually reflected in the salt and nearby shallow brine pools. But alas, I didn't even have time to set up the view camera, the light was changing so fast. So I grabbed the 6X7 instead, and did indeed employ hyperfocal theory. So I know how to do that. The print came out great.
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