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| p.2 #7 · interesting focal length/DOF sample |
hm... maybe we should lighten this discussion a bit, I didn't intend it to be so heated :-) Interesting read though, just don't want it to get personal with anyone!
His images were not necessarily slanted inward. If you use a shift lens, or if you use a bracket that allows parallel shifting, there is no rotation about a central nodal point. Thus, the plane of focus can remain unchanged depending on technique.
The camera was fixed on the ball head, no correction for parallax or shifting around of the camera (and obviously, no lens shifting!), just simple rotation (horizontal and vertical) of the camera on the ball head. However, the camera was angled downward for just about all of the shots (as much as probably 60 degrees!) but for the top row of images I'd say the camera was probably parallel with the horizon. (see the image of the tripod, notice how much higher the tripod is than the hood of the car) This creates kind of the 'sphere of focus', which is why none of the ground is in focus, because the focus area is so curved (due to the camera rotating all around?) the in-focus ground area is actually right at the base of the tripod, (maybe a few feet farther out).
The next one I do, I'll make sure to keep the in-focus ground area visible in the photograph.