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
The Flower Pot Men Never Be Wrong" failed to chart in April 1968, the label had the touring band record "In A Moment of Madness" by Roger Greenaway without the involvement of Carter and Lewis, which also failed to chart. As Mark Frumento wrote in the liner notes of the retrospective Flower Pot Men album, "Listen to the Flowers Grow": ""At this point Deram decided that the Flower Pot Men name was no longer commercial and the next single, "Piccolo Man" was released under the band name 'Friends' ... The final Flower Pot Men single was released in 1969, but this time the writing