The Tilt-Shift blur applies blurs along one or more planes, letting you adjust both location and intensity, like the popular Lensbaby tilt-shift lens. You can also apply and adjust a bokeh (background blur) effect with any of the three new Blur tools.
Tilt-shift photography” refers to the use of camera movements on small- and medium-format cameras, and sometimes specifically refers to the use of tilt for selective focus, often for simulating a miniature scene. Sometimes the term is used when the shallow depth of field is simulated with digital post-processing; the name may derive from the tilt-shift lens normally required when the effect is produced optically.
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