Diaphragm (optics) curved blades improve the roundness of the iris opening. In a photograph, the number of blades that the iris diaphragm has can be guessed by counting the number of diffraction spikes converging from a light source or bright reflection. For an odd number of blades, there are twice as many spikes as there are blades. In case of an even number of blades, the two spikes per blade will overlap each other, so the number of spikes visible will be the number of blades in the diaphragm used. This is most apparent in pictures taken in the dark with small
Flower A. Newhouse 9, 1994) was born with eye infections and had her eyes removed surgically at the age of five and went to live in a school for the blind. She married Albert William Carson (June 13, 1893 - Jan. 6, 1975) on Dec. 22, 1933 in Los Angeles, California. According to her mother, as a child Flower first began to reveal the abilities of clairvoyance, which were prevalent throughout her life. From childhood Flower revealed that her life purpose was to live and teach the way of Christian discipleship and esoteric Christian mysticism through an ever deepening experience of God and