Search results for “Depth of Field”

Focus Shift Focus & Depth of Field mm A movement of the plane of sharpest focus as a lens is stopped down, caused by residual spherical aberration.

Group f/64 Genres, Movements & Theory A short-lived association of West Coast American photographers formed in 1932 to advocate sharp, unmanipulated photography.

Landscape Photography Genres, Movements & Theory Photography of natural or altered land, sea and sky, often concerned with light, weather and a sense of place.

Macro Lens Optics, Lenses & Filters magnification ratio A lens corrected for close focusing that reproduces a subject at life size or larger on the sensor. m = image size / subject size

Macro Photography Genres, Movements & Theory magnification ratio Photography at magnifications approaching or exceeding life size, revealing detail invisible to the unaided eye. m ≥ 1:1

Medium Format Cameras, Formats & Systems mm Any format larger than 35 mm but smaller than 4×5 inches, covering film frames from 6×4.5 to 6×17 cm and digital sensors around 44×33 mm.

Photogrammetry Motion, Video & Creative Techniques count Deriving three-dimensional measurements and models from a set of overlapping photographs.

Photomicrography Motion, Video & Creative Techniques × magnification Photography through a microscope, recording subjects at magnifications far beyond macro.

Rack Focus Motion, Video & Creative Techniques seconds Shifting focus from one subject to another during a shot, moving the viewer's attention deliberately.

Scheimpflug Principle Focus & Depth of Field degrees The rule that when a lens is tilted, the subject plane, lens plane and image plane all intersect along a single common line. Subject, lens and image planes share one line

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

Shutter Speed Exposure & Metering seconds The length of time the shutter stays open, controlling both total exposure and how much subject or camera movement is recorded as blur. t = 1 / denominator

T-stop Exposure & Metering T-stops A measured aperture value that accounts for the light a lens actually transmits, rather than the geometric ratio an f-number implies. T = N / √(transmittance)

Crop Factor Cameras, Formats & Systems × multiplier The ratio between a sensor's diagonal and that of full frame, used to convert focal lengths into their full-frame equivalents. Crop factor = 43.3 mm / sensor diagonal

Diffraction Optics, Lenses & Filters µm The spreading of light waves as they pass the edge of an aperture, which softens the image at small f-numbers. d = 2.44 × λ × N

Program Mode Exposure & Metering An automatic mode, marked P, in which the camera selects both aperture and shutter speed while leaving other controls to the photographer.

Results for “Depth of Field”