Search results for “Depth of Field”

Depth of Field Focus & Depth of Field m The range of distances in front of and behind the plane of focus that appears acceptably sharp in the final image. DoF ≈ 2u²Nc / f²

Depth of Field Preview Cameras, Formats & Systems A control that stops the lens down to the working aperture so the actual depth of field can be seen before exposure.

Depth of Field Scale Focus & Depth of Field m / ft Markings on a lens barrel showing the near and far limits of sharpness for each aperture at the set focus distance.

Deep Depth of Field Focus & Depth of Field m A wide zone of sharpness in which foreground, subject and background all hold detail.

Shallow Depth of Field Focus & Depth of Field m A narrow zone of sharpness that isolates the subject against a strongly blurred foreground and background.

Aperture Exposure & Metering f-stops (EV) The adjustable opening inside a lens that controls how much light passes through to the sensor, and with it the depth of field. N = f / D

Focus Stacking Focus & Depth of Field count Combining several frames focused at different distances into one image with depth of field no single exposure could achieve.

Full Frame Cameras, Formats & Systems mm A sensor the same size as a 35 mm film negative, 36 by 24 millimetres, treated as the reference format for focal length and depth of field. Crop factor = 1.0

Hyperfocal Distance Focus & Depth of Field m The focus distance that yields the greatest depth of field, extending from half that distance out to infinity. H = f² / (N × c) + f

Isolation Composition & Visual Design Separating a subject from its surroundings so it reads alone, using depth of field, framing, tone or timing.

Pinhole Camera Cameras, Formats & Systems mm A lensless camera that forms an image through a tiny aperture, giving infinite depth of field and extremely long exposures. d = √(2 × λ × f)

Sensor Format Cameras, Formats & Systems mm The physical dimensions of a camera's sensor, which set its angle of view, depth of field characteristics and light-gathering area. Area ∝ width × height

Zone Focusing Focus & Depth of Field m Presetting a lens to a distance and aperture whose depth of field covers the range the subject will occupy, then shooting without focusing at all.

35 mm Format Cameras, Formats & Systems mm The film format using 35 mm perforated stock with a 36 by 24 millimetre frame, which became the dominant standard of the twentieth century.

Action Camera Cameras, Formats & Systems A small, ruggedised, wide-angle camera built to be mounted on a body, vehicle or piece of equipment.

Aperture Priority Exposure & Metering A semi-automatic mode, marked A or Av, in which the photographer sets aperture and ISO while the camera chooses shutter speed.

Auto ISO Exposure & Metering ISO A camera mode that lets the body select sensitivity automatically within limits the photographer sets, usually with a minimum shutter speed.

Depth of Focus Focus & Depth of Field µm The tolerance in sensor position, on the camera side of the lens, within which the image stays acceptably sharp. ≈ 2Nc

Diffraction Limit Optics, Lenses & Filters f-stops The aperture beyond which diffraction, rather than lens design or sensor resolution, becomes the factor limiting sharpness. N_limit ≈ pixel pitch / 1.22λ

Environmental Portrait Genres, Movements & Theory A portrait made in a setting that tells the viewer something about the subject's life, work or identity.

Equivalent Exposure Exposure & Metering stops (EV) Any different combination of aperture, shutter speed and ISO that yields identical image brightness. N₁²/t₁ = N₂²/t₂

Equivalent Focal Length Cameras, Formats & Systems mm The full-frame focal length that would give the same angle of view as a given lens on a smaller format. f_equiv = f × crop factor

Exposure Triangle Exposure & Metering stops The teaching model that links aperture, shutter speed and ISO as three interdependent controls, where changing one requires compensating with another. Aperture ↔ Shutter ↔ ISO

Eye AF Focus & Depth of Field A refinement of face detection that locates and focuses on the eye itself, and usually lets the photographer choose which one.

Results for “Depth of Field”