Digital Photography: A to Z (Part 06)

 F


Faq
FAQ:
Frequently Asked Question.




Floppy Disc Drive
FDD:
Flexible or floppy Disc Drive. A storage medium with a capacity of 1.44 MB.




File
File:
A set of data that has been arranged according to specific rules. Files are managed in the computer by the operating system and can be stored long-term on an external storage medium.




File Format
File Format:
Describes the contents of files. Common file formats include <txt> for a text file, <eps> (Encapsulated PostScript) for PostScript, and <tiff> for TIFF images.





Film Scanner
Film Scanner:
Hardware for disitizing negatives and slides. (Flash Film Scanned)





Flim Sensitivity:
The information is given in ISO value, which has replaced the earlier DIN and ASA (American Standard Association)


Filter
Filter:
01. A transparent, mostly coloured sheet of glass or plastic that can be placed in front of a lens to create a certain effect.
02. An option in an image editing program that enables certain adjustments to the picture, w.g. colour & brightness of foreshortening.



Firmware
Firmware:
Software contained in ROM that manages the camera's operation.




Flash
Flash:
Produces a large amount of light for a brief moment to illuminate the subject. Modern flashes work with glass discharge tubes. Computerized camera flashes can measure and automatically control their intensity by means of a sensor directed at the object. 


Flash Duration
Flash duration:
The camera's flash synchronization ensures the flash is emitted while the shutter is open.





Flash Path Adapter
Flash Path Adapter:
Permits the trouble-free transfer of digital images saved on SmartMedia Cards to a PC. The storage cards need only be inserted into the adapter and then in the computer's disk drive.



Flash Range
Flash range:
The distance needed to be covered by the flash to give the subject optimal illumination. This can be calculated using Lambert's law. As the distance from the light source is doubled only a quarter of the original amount of light will reach the subject.



Flash-Rom
Flash-ROM:
A type of memory storage that can retain information even after the power has been switched off. Unlike conventional ROM, the contents of a Flash-ROM can be deleted and rewritten with the help of a pre-programmed electrical current. Therefore, a Flash-ROM is a combination of RAM & ROM.



Flash Synchronysation
Flash Synchronization:
Co-ordinates the opening of the camera's shutter with the time and duration of the flash. Some cameras allow you to synchronize the beginning or end of the shutter ("sync1" and "sync2" respectively).




Focal Length
Focal length:
The distance between the center of the lens and the film or CCD sensor, i.e. where the image is in focus. Normal focal length gives an image impression roughly corresponding to that of the human eye (about 50mm in conventional film cameras and about 7mm in digital cameras with 1/3" CCD).





Freehand
FreeHand:
Popular graphics program from Macromedia.




 
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