Tag Archives: Depth of Field

Jonathan Maxwell on Full Format vs S35 DoF

Full Format  vs S35 Depth of Field Depth of Field  or “By how much do we have to increase the lens aperture filming on a small camera format to maintain the same Depth of Field as a lens filming on a large camera format ?” by Jonathan Maxwell, Optical Designer   Everybody “knows” that the larger the camera detector you use the smaller… read more…

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Klaus and Uwe Eckerl, IB/E Optics, on DoF

In “Depth of Field Repealed,” FDTimes called for comments on “The difference in depth of field between Large Format and S35, comparing lenses with the same angle of view.” Klaus and Uwe Eckerl,  Managing Director and Optical Designer of IB/E Optics in Bavaria, write: Yes, Circle of confusion  really causes some confusion. In brief,  We agree with ARRI (1 stop difference)…. read more…

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Depth of Field Repealed

On page 49 of Film and Digital Times February 2018 Edition #86, I wrote, “The difference in depth of field between Large Format and S35, comparing lenses with the same angle of view, is the equivalent of about 2 stops.”

This unleashed a deluge of debate among PhDs, Professors and Lens Designers sprinkled with some solid real-life testing. Uh-oh. Please do your own tests. And let us know your results. read more…

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