Full frame cameras have less DOF than 35mm film.

Started Aug 2, 2010 | Discussions thread
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Scott Larson
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Full frame cameras have less DOF than 35mm film.
Aug 2, 2010

You didn't know this? I guess you haven't read the article in the Filmmaker's Forum in this month's issue of American Cinematography.

Steven Fierberg, ASC wrote:

"Because digital sensors have a fixed array of uniform pixels, the circle of confusion 'jumps' from one row of pixels to the next; film, on the other hand, has randomly placed, variably sized microscopic grains, resulting in a smooth, gradual focus transition."

Film is more blurry and that gives it more DOF. Uh what? I've never seen the edges of a circle of confusion confined to individual pixels. Their indistinct edges tend to fade over several pixels.

I guess if you took a photo, blurred it in Photoshop, it would have more DOF because it would be hard to see what was or wasn't originally in focus.

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