Foods that are close to the bottom edge are more calorie-dense. If you want to increase your calorie intake without getting too full, choose foods from the bottom half of the map. Read more about the Nutritional Target Map. Nutritional Target Map for Cucumber, with peel, raw.
In photography and digital photography, aperture is the unit of measurement that defines the size of the opening in the lens that can be adjusted to control the amount of light reaching the film or digital sensor. The size of the aperture is measured in F-stop. See also shutter speed.
Definition of critical aperture - iDigitalPhoto Dictionary. Definition: The aperture setting which gives the best overall performance. * The relative aperture at which an optical system delivers the best balance between aberration correction and contrast rendition. Stop stopping down two. The commonest advice for using critical aperture was to stop down two stops from maximum: this continues to be useful for standard lenses of modest aperture and enlarging lenses, but not for other types.