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EV (Exposure Value)

David Präkel

David Präkel has enjoyed a successful and diverse career in journalism, photography and education. He has taught photography at all levels in the UK and America, at the prestigious Kodak Imaging Training Centre and in his own training workshops in Northumberland. Author affiliation details are correct at time of print publication.

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The Visual Dictionary of Photography

AVA Publishing SA, 2010

Book chapter

...An Exposure Value is a method of stating exposure settings using a single number to represent a range of equivalent combinations of aperture and shutter speed. The Exposure Value unit is one stop. EV0 is a shutter speed of 1 sec at f/1.0...

About Looking

Train Your Gaze : A Practical and Theoretical Introduction to Portrait Photography

Fairchild Books, 2015

Book chapter

...“Right in the Eyes,” The Responsibility of Forms (Oakland: University of California Press, 1991).Science Interprets the Gaze in Three (Combinable) Ways; in Terms of Information (The Gaze Informs), in Terms of Relation (Gazes are Exchanged),...

Acutance

David Präkel

David Präkel has enjoyed a successful and diverse career in journalism, photography and education. He has taught photography at all levels in the UK and America, at the prestigious Kodak Imaging Training Centre and in his own training workshops in Northumberland. Author affiliation details are correct at time of print publication.

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The Visual Dictionary of Photography

AVA Publishing SA, 2010

Book chapter

...Acutance is best described as how well the photographic medium handles edge contrast. High acutance gives crisp, clean edges with high edge contrast so they stand out clearly. Low acutance gives fuzzy edges that are less distinct. Film...

Albumen Print

David Präkel

David Präkel has enjoyed a successful and diverse career in journalism, photography and education. He has taught photography at all levels in the UK and America, at the prestigious Kodak Imaging Training Centre and in his own training workshops in Northumberland. Author affiliation details are correct at time of print publication.

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The Visual Dictionary of Photography

AVA Publishing SA, 2010

Book chapter

...Albumen prints are relatively easy to identify as many show tiny surface cracks and a tendency for the albumen to turn yellow-brown, giving yellow highlights. Both features are visible in this cabinet print from 1883 taken by photographer T...

Wide-angle Lens

David Präkel

David Präkel has enjoyed a successful and diverse career in journalism, photography and education. He has taught photography at all levels in the UK and America, at the prestigious Kodak Imaging Training Centre and in his own training workshops in Northumberland. Author affiliation details are correct at time of print publication.

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The Visual Dictionary of Photography

AVA Publishing SA, 2010

Book chapter

...A wide-angle lens has a wide angle of view and a shorter than standard focal length. The shorter the focal length, the wider the angle of view. A popular first choice is the 35mm- or 28mm-wide angle as the viewpoint effects can take some...

Available Light

David Präkel

David Präkel has enjoyed a successful and diverse career in journalism, photography and education. He has taught photography at all levels in the UK and America, at the prestigious Kodak Imaging Training Centre and in his own training workshops in Northumberland. Author affiliation details are correct at time of print publication.

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The Visual Dictionary of Photography

AVA Publishing SA, 2010

Book chapter

...Available light is commonly associated with photography in low-light conditions. It is, however, any natural or artificial light that can be used by the photographer to get an exposure. The real distinction is that it is not photographic...

Barnack, Oskar

David Präkel

David Präkel has enjoyed a successful and diverse career in journalism, photography and education. He has taught photography at all levels in the UK and America, at the prestigious Kodak Imaging Training Centre and in his own training workshops in Northumberland. Author affiliation details are correct at time of print publication.

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The Visual Dictionary of Photography

AVA Publishing SA, 2010

Book chapter

...Left: Portrait of Oskar Barnack (1879–1936). Below: Oskar Barnack’s Eisenmarkt, 1914. Bottom: Oskar Barnack’s Flood, Langgasse, 1920.In 1911 Oskar Barnack was head of development for the Leitz optical company in Wetzlar, Germany, when he...

Bracketing

David Präkel

David Präkel has enjoyed a successful and diverse career in journalism, photography and education. He has taught photography at all levels in the UK and America, at the prestigious Kodak Imaging Training Centre and in his own training workshops in Northumberland. Author affiliation details are correct at time of print publication.

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The Visual Dictionary of Photography

AVA Publishing SA, 2010

Book chapter

...Bracketing is intentional over- and underexposure from the indicated exposure, usually done in whole or half stops. When the best exposure may not be that indicated by the light meter, bracketing gives the photographer a choice of images...

Calibration

David Präkel

David Präkel has enjoyed a successful and diverse career in journalism, photography and education. He has taught photography at all levels in the UK and America, at the prestigious Kodak Imaging Training Centre and in his own training workshops in Northumberland. Author affiliation details are correct at time of print publication.

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The Visual Dictionary of Photography

AVA Publishing SA, 2010

Book chapter

...Calibration is the adjustment of a device or mechanism so it conforms to a known standard. Computer monitors are calibrated for their colour temperature white point, contrast (gamma) and black-and-white luminance. The targets shown here can...

Calotype

David Präkel

David Präkel has enjoyed a successful and diverse career in journalism, photography and education. He has taught photography at all levels in the UK and America, at the prestigious Kodak Imaging Training Centre and in his own training workshops in Northumberland. Author affiliation details are correct at time of print publication.

Search for publications

The Visual Dictionary of Photography

AVA Publishing SA, 2010

Book chapter

...Fishwives and Fishes waxed calotype negative and salt print positive by important Scottish photographic pioneers Hill and Adamson.The calotype is sometimes referred to as a Talbotype after its inventor William Henry Fox Talbot. Fox Talbot...