P - panning
Moving the camera along with a moving subject in order to keep the subject in the frame. Panning a fast-moving subject with a slow shutter speed usually results in the subject remaining relatively in focus while the rest of the scene is blurred or stretched in the direction of the camera movement. See also camera.
- panorama
Usually refers to a scenic landscape image with a wide aspect ratio. See also aspect ratio.
- photo editing
The process of choosing selects, as well as culling unwanted images (known as rejects), from a group of images. See also ratings, reject, select.
- pick
The image, usually the best, that represents a stack. See also alternate, stack.
- pixel
Picture element. The smallest discernible component of a digital image, as well as the smallest element on the display that can be assigned a color. See also megapixel.
- PNG
An acronym for Portable Network Graphics. PNG is a bitmapped graphic file that has been approved by the World Wide Web Consortium to replace patented GIF files. PNG files are royalty free.
- polarizing filter
A filter placed on the front of the lens capable of selectively transmitting light traveling on one plane while absorbing light traveling on other planes. Polarizing filters are capable of reducing unwanted reflections on windows and shiny surfaces. They are also used to darken the sky. See also filters.
- positive
Refers to developed film where the tonal relationship of the subject or scene is the same on film as viewed by the eye; also known as a slide. See also emulsion, negative.
- presets
Settings that can be customized, duplicated, and saved for various operations such as exporting or printing. Export presets, for example, can specify the file format, resolution, bit-depth, metadata, and watermark to be applied to an image or a group of images during export.
- prime lens
A lens with a fixed focal length that cannot be changed.
- profile
A compilation of data on a specific device's color information, including its gamut, color space, and modes of operation. A profile represents a device's color-reproduction capabilitiesand is essential to making the color management system work. See also device characterization, gamut.
- project
In Aperture, the top-level file that holds all the master files, versions, and metadata associated with a shoot. A project can include up to 10,000 master files with as many versions as needed, plus elements such as albums, web gallery albums, journals, book layouts, and Light Table sessions. Projects can also reference versions from other projects. These referenced versions maintain links to the master files in their original projects. See also album, master.
- projects panel
The Projects panel is where images in Aperture are organized into projects, albums, and Smart Albums.
- PSD
The file extension for Photoshop Document. PSD files are proprietary graphic files for Adobe Systems.
- publish to .mac button
A one-click way to publish a website that has been designed and laid out in Aperture.
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