James Stephens

February 2, 2006

RAW Conversion: Demosaicing And Gamma Correction

Filed under: Understanding — James Stephens @ 8:22 am

A new version of Adobe Photoshop’s RAW conversion plugin, Adobe Camera RAW v3.3, has finally been released. I was pleased to read that it includes an enhanced Bayer demosaic algorithm, and thought it might be nice to write an article on this and other aspects of the RAW conversion process.
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January 29, 2006

A Different Perspective On Hyperfocal Distance

Filed under: Understanding — James Stephens @ 10:43 am

The hyperfocal distance is often not the best choice ….
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January 24, 2006

A Simple Explanation Of The Concept Of Circle Of Confusion

Filed under: Understanding — James Stephens @ 12:57 pm

A good photography tip, especially for landscape photography, is to calculate depth of field using a chart or other device before you take the picture. That’s not a completely straightforward exercise however:
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