Results for “Aperture”
5 terms
Film, Darkroom & Historic Processes
Camera Obscura
A darkened room or box in which a small aperture projects an inverted image of the outside world onto an inner surface.
Optics, Lenses & FiltersCat's-eye Bokeh
The lens-shaped, off-round rendering of out-of-focus highlights near the frame corners, caused by optical vignetting.
Optics, Lenses & FiltersCatadioptric (Mirror) Lens
A long lens that folds its light path with curved mirrors as well as glass, achieving great focal length in a short, light barrel.
Optics, Lenses & FiltersComa
An aberration that renders off-axis points of light as asymmetric comet-shaped smears rather than dots.
Cameras, Formats & SystemsCrop Factor
The ratio between a sensor's diagonal and that of full frame, used to convert focal lengths into their full-frame equivalents.