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Motivation is a photography blog that discusses the creative aspects of photography. The posts will include thoughts about images and their interpretation, photographers and their work, technique, workflow, my ongoing projects, and perhaps even the occasional off topic rant.

More On Diffraction In Digital Imaging

A bit of a short post today, but one that points out some interesting information. On June 12th, I wrote a post about an article that I had read in Photo Techniques Magazine about the role diffraction plays in digital imaging as it related to aperture and depth of field. That post can be read here.

As a supplement to that information, I would like to point out an on-line article written by Ray Maxwell entitled "Why Moore's Law Does Not Apply To Digital Photography", which was published on The Luminous Landscape website. In the article, Maxwell points out that for full frame 35mm sensors we are currently at the highest resolution or pixel density that can realistically be useful because of the diffraction properties of visible light. He also goes on to discuss, as was noted in the Photo Techniques article, that with the pixel size on the Canon 5D MkII sensor, diffraction limitations come into play by f11.

A very interesting and worthwhile read (that also contains some interesting links) and one that supplements and adds to the article I had previously mentioned.

Addenda: Between the time I wrote this post and put it on-line there has already been a rebuttal article written on The Luminous Landscape to the article I have been referencing. That article can be read here. You really have to read these....they provide interesting insights into where we are and where things might be heading.