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High-end Canon SLRs — film-based as well as digital — feature a mode calledDEP. (This includes the1V, Elan 7,EOS-3, 1Dand1Ds.See the section onA-DEPbelow for more on other Canon cameras). This is short forDepth of Field. It permits you to have the camera automatically select the hyperfocal distanceandappropriate aperture for that shot, so that the nearest and farthest objects in the scene are both in focus.

It used to be (back in the early Paleozoic — until about 1985) that lenses had depth of field scales. Setting the hyperfocal distance was simply a matter of focusing the lens so that the scale showed the farthest point and the nearest point desired to be within the scale of a given aperture, and then setting that aperture.

A Leica 35mm Summilux-M lensfocused at 12 feet,showing depth of field from 6 ft to Infinity at f/11This is whatalllenses used to look like.The advent of autofocus, and the increased popularity of zooms over prime lenses has lead to th...

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Michael Reichmann
Michael Reichmann
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Michael Reichmann is the founder of the Luminous Landscape. Michael passed away in May 2016. Since its inception in 1999 LuLa has become the world's largest site devoted to the art, craft, and technology of photography. Each month more than one million people from every country on the globe visit LuLa.
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