Photographic training, tutorials and technical articles.
Explore the world of ideas behind Ansel Adams's photography through archival footage of the artist at work, audio commentaries by art historians, and words from Adams himself.
Weekly Nikon tutorial videos from Scott Kelby and Matt Kloskowski. The original URL no longer exists, but I have linked here to YouTube versions of the tutorials.
Online calculator which takes your camera's settings and estimates depth of field. Also if you have a smartphone, then check the apps - there are plenty of free DoF apps available now.
Free videos on Photoshop CS3/4. Lots of tips and easy ways of changing your images.
Differences between sensor sizes put into practical terms. Wikipedia note - don't forget that Wikipedia is "online open-content collaborative encyclopedia" and as such is normally correct, but some content may not be completely accurate.
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