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Results for “Bokeh”

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Optics, Lenses & Filters

Bokeh

The aesthetic character of the out-of-focus areas of an image, as distinct from how much of the image is out of focus.

Optics, Lenses & Filters

Cat's-eye Bokeh

The lens-shaped, off-round rendering of out-of-focus highlights near the frame corners, caused by optical vignetting.

Optics, Lenses & Filters

Onion-ring Bokeh

Concentric rings visible inside out-of-focus highlights, caused by tooling marks on a moulded aspherical element.

Motion, Video & Creative Techniques

Shaped Bokeh

Rendering out-of-focus highlights as a chosen shape by placing a cut-out mask over the lens.

mm (aperture cut-out)
Optics, Lenses & Filters

Anamorphic Lens

A lens containing cylindrical elements that squeeze a wide field horizontally onto a standard frame, to be unsqueezed on projection.

Desqueeze = width × squeeze factor squeeze ratio (e.g. 1.33×, 2×)
Optics, Lenses & Filters

Aspherical Element

A lens element whose surface departs from a simple sphere, correcting aberrations that spherical glass cannot.

count
Cameras, Formats & Systems

Electronic First-curtain Shutter

A hybrid shutter that begins the exposure electronically and ends it with a physical curtain.

seconds
Optics, Lenses & Filters

Longitudinal Chromatic Aberration

Colour fringing caused by different wavelengths focusing at different distances, producing purple in front of focus and green behind it.

Optics, Lenses & Filters

Optical Vignetting

Corner darkening caused by the lens barrel physically clipping the light cone reaching off-axis parts of the frame.

stops (EV)