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I removed the discussion comparing resolutions of color and black and white film with image sensors. The text was five years out of date, and a quick google search indicated that on some high-end cameras the resolution of the sensors now exceeds the resolution limits of the best available lenses (which is not the case for film). --Srleffler (talk) 00:11, 6 September 2011 (UTC)
The picture of defocused Christmas lights shows crisp boundaries around evenly illuminated polygons. Surely that's 3 artifacts on top of defocus? I was expecting blurs, with maximal brightness in the center...? — Preceding unsigned comment added by 220.127.116.11 (talk) 16:43, 22 August 2016 (UTC)
You may be interested in Bokeh, which discusses this.--Srleffler (talk) 07:57, 28 August 2016 (UTC)