>>4498701>in all tilt shift lenses pics i've see all look like macro pics. out of focus in front the subject, out of focus behind.See that's the thing. Using a T-S lens, that's sometimes the goal. To get a different look that you otherwise could not have any hope of replicating without the lens mechanisim. But~, T-S lenses have a couple of more "legitimate" uses.
>AIf you want to keep your f/stop low but you want to get things in focus that are not the same parallel distance from the camera sensor. You go form the plane of focus being a (mostly) straight line running parallel across your shot || to something angled that follows the objects you want in focus |/
(I couldnt find the pic I think of which is three green apples positioned on a table but all are in focus and everything off to the sides is not)
>BCorrecting perspective distortion. This is mostly for use in architectual shots. Software correction is also pretty good these days so it's less of a necessity but correcting it with optics (the T-S lens) avoids ruining pixel-level details.
>don;t understand why the focus blur behaves like this in your foto.Your sensor is a flat rectangle. The image plane your lens projects is a flat circle. The two are designed in tandem to have the sensor capture the image the lens projects onto it. The image projection and sensor should be completely flat against each other in theory.
With a T-S lens you're moving the angle that the image projection lands on the sensor from 180* to something else like 150* or 200* (in either the X or Y axis). Only the portion of the image plane that still lines up on the sensor wafer is going to be in focus which is now no longer the whole projection.
