In this Podcast from the vault Craig discusses a less technical and more experiential and personal way to think about and calculate depth of field. Craig defines depth of field and other concepts related to depth of field like defraction and hyperfocal focusing point. Craig discusses a way to test you lens for defraction. Then Craig gets into very practical ways that you can work with aperture and hyper focal focusing to maximize depth of field. Craig also discusses a split focusing technique for maximizing depth of field.