PetaPixel

A Detailed Explanation of Depth-of-field and the Factors That Affect It

Learning how to control depth of field with your camera isn’t too difficult, but do you know the science behind how it works? This uber-educational 20-minute video lesson gives a thorough explanation of depth of field and the different factors that affect it. It was made by artist Justin Snodgrass, and is also available for download (and in parts) over on his website.

(via Petrucci Francesco)


 
  • http://twitter.com/Soiden Sebasti├ín Soto

    I’d love this with subtitles. English isn’t my first language and I’m not that good at listening it.

  • http://twitter.com/mijonju mijonju

    cool, these are rules on a 35mm format, but as format size changes, the rules changes too,

    smaller capturing medium example 110 film will also decrease the dof as for large format 4×5 or 8×10 and so on, even with a small aperture, the dof will increase. that explains why some ppl are complaining about the f2 lx3 got not much bokeh, cause that sensor is around 1.7 inch.

  • Adrian J Ng

    My goodness this video is very uncheerful.

  • http://profiles.google.com/dave.landry Dave Landry

    This combined with Zack Arias’ explanation during his recent creativeLIVE class are the perfect storm for understanding DOF. Thanks for digging this up. It lacks Zack’s delivery :)

  • http://twitter.com/gongolo Francesco

    Thanks for sourcing me ;)

  • http://twitter.com/gongolo Francesco

    Thanks for sourcing me ;)

  • Studio

    About the most boring delivery ever! What happened to the other way-important part? Namely the distortion of space and objects that is a consequence of lens choice and distance to subject.

  • http://www.thisisjoe.net YJawhar

     VERY USEFUL material but EXTREMELY BORING presentation & delivery. Thanks.. it really help clear things out.

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  • SoThere

    To the people complaining that this video is “uncheerful” or “boring”: How rude can you be?

    In the first place, I found the video very informative and useful. For example, the animated explanation of the circle of confusion explains in a couple of minutes what would take hours of reading text and looking at static diagrams.

    In the second place, anyone who takes the time to post such a well-organized and thoughtful video deserves, above all, a response of “Thank you.” Constructive criticism is one thing, but whining that you weren’t dazzled is just plain rude.

  • Chinmay Kamat

    Very beautifully explained.. Thank you so much.. I’ve been hunting for this info in so many books.. You just cleared up the confusion so nicely.. Thanks

  • stolo

    excellent video! very thorough and well explained. especially appreciated the parts on circle of confusion which I couldn’t find much info about on the internet or in books. really appreciate this!