Chris Peterson wrote:DavidLeodis wrote:What does the "multiple leaves in the aperture of the telephoto lens" mean I know I should try to find out but I'm surely not the only one not to know, so I thought I would ask.A standard camera iris, for adjusting the size of the aperture, is made up of multiple leaves. This is a five-leaf iris, which would produce ten diffraction spikes around a bright point. Today's image was made using a six-leaf aperture, which produces just six spikes.
Thanks Chris for your help, which is appreciated.
I did not realise that cameras still used that method to adjust the size of the aperture, though to be honest I'd never given it any thought with my compact digital camera being always on an automatic setting so I don't know what is actually going on when I take a photograph.