Comment Comment by Green_man The number of rays is determined by the number of aperture blades, as well as whether there's an even or odd number of aperture bladeshttps://phillipreeve.net/blog/best-lenses-for-sunstars/#The_...Interestingly, some modern photography lenses have achieved aperture mechanisms with much rounder geometry, sometimes with near perfect circles at multiple apertures. This can result in a more desirable bokeh, at the cost of well defined sun stars. parent Green_man 4 years ago
https://phillipreeve.net/blog/best-lenses-for-sunstars/#The_...
Interestingly, some modern photography lenses have achieved aperture mechanisms with much rounder geometry, sometimes with near perfect circles at multiple apertures. This can result in a more desirable bokeh, at the cost of well defined sun stars.