Which is true about P-iris?

The P-iris makes use of a novel p-shaped blade that reduces complexity and cost while maintaining image quality

In bright situations. P-iris limits the closing of the iris to avoid blurring caused by diffraction when the iris opening becomes too small

The P-iris delivers the optimal depth of field by always using the smallest possible aperture for the available lightning

The P-iris makes use of a novel p-shaped blade that allows the iris to react to rapidly changing lighting conditions