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Jonas B wrote:
And here we have the same lens again, but now with a much more demanding background:
In the image cogitech posted we can actually see hints of this "bright ring" behavior if we look closely to the background. There are some spots there rendered as pretty large circles with a tiny ring on them.
Thanks for completing the comparison of the Zuiko 50/1.4, Jonas. Not only is the background more challenging in your shot but also, even more importantly, the focus was much closer in my shot. As these relative distances between the sensor plane, the subject and the background change, the nature of the bokeh is dramatically affected. That is a brick wall behind my wife and her pink vest has a quilted pattern that was simply smeared to nothing. If you had stepped forward and focused 6 to 8 inches closer, the bokeh (among many other aspects) of your shot would look entirely different.
I think this is why macro (including flower "macro") shots often show creamy smooth bokeh. Likewise, all of this is affected by the ratio of focal length to aperture, as well. Hence, my 350/5.6 Soligor renders gorgeous blurred backgrounds at or near close focus distance, even at f11. (I think the 15 beautifully curved aperture blades do help a bit, though.)
Edited on Jul 04, 2008 at 01:38 AM