Cone Flowers #3596 by dbwalton
Close
Hover over top left image to zoom.
Click anywhere to exit.
Members remain the original copyright holder in all their materials here at Renderosity. Use of any of their material inconsistent with the terms and conditions set forth is prohibited and is considered an infringement of the copyrights of the respective holders unless specially stated otherwise.
No AI - This artwork was created entirely by hand or with traditional digital tools.
Description
A couple of cone flowers (echinacea) in my garden. Shot with a lens I built from scratch for Canon EOS mounts. The aperture of this lens is shaped like a fern leaf (as you can see in the bokeh of the image.)
Comments (2)
Interesting optical effect, I've seen some kind of aperture shape setting in a number of render engines but never thought to investigate what it does.
The effect called "bokeh" are "rings of confusion" created by the diverging light rays. Because the light rays have to pass through the aperture, they converge and diverge in the shape of that aperture. Most cameras have either a round or polygon shaped aperture. That's why the "bokeh" appears as little circles or octagons (or some other polygon depending on the number of blades in the lens' iris).
So, when I cut out an aperture that looks like a fern leaf, the rings of confusion take on that shape. Had I made a heart, they would have looked like little hearts. Etc.
unique effect with very good results