After I join 4 x 5 world, I know a little bit from the above rule. But I still have several questons.
For example, I am going to take a long building, not tall. According to the rule, to obtain overall sharpness along a subject plane, I only need to swing the lens plane or the film plane, so that the subject plane, lens plane and film plane converge at a common point.
Now the questions are
1. Does the degree of swing affect the depth of field with same aperture?
2. Does the depth of field affect by different apertures with same degree of swing?
3. Ebony homepage said that some of their camera have asymmetrical movement. The asymmerical movement will give better sharpess of subject. Any comment?
Thank you brothers