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Contrast control

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Contrast Control Filter
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[edit] Contrast control
Fixed grade - or graded - black-and-white papers are available in different contrast grades, numbered 0 to 5, with 0 being the softest, or least contrasty paper grade and 5 being the hardest, ...

The Contrast control obviously affects the contrast of an image. In addition to the default setting, conversions were done at -25 and 75.

If you have a contrast control setting on your digital camera, bump it up to +1 or +2
Seek out or create "contrasty" lighting, perhaps a dark room with a single strong light source or the shadows created by a bright noon-day sun ...

Brightness & Contrast Control: This allows you to lighten or darken the image as well as increasing or decreasing contrast.
Curves: Curves is used to adjust brightness and contrast of each tone separately.

When you photograph this scale you should be able to adjust the monitor's or TV's brightness and contrast controls so you can see each and every one of the 20 steps. If the whites all run together, you are overexposing.

That is, while the input value to the power of the gamma value is the heart of what is going on, the contrast control will scale the overall intensity of the output luminance and the brightness control increases all results equally, ...

Gain and level are image processing terms which roughly correspond to the brightness and contrast control on a television. The gain is the " contrast " and the level is the "brightness".

Contrast control is an important element in digital imaging and is affected by: inherent subject contrast; subject lighting ratio; flare factor of lenses and the amount of green added to the image sensor.

They use high contrast paper for vibrant color and B&W contrast masks for contrast control, unlike cheap printers who like to use the low contrast Ilfochrome material which allows for more sloppiness in printing. Their printers are real artists.

Dodging, burning, color adjustments, contrast control, blending images, making cardboard cut outs, etc. took hours, but boy were they fun. This brings me to the point off this article.

Paper
Paper Processing Step-By-Step (RC)
Paper Processing Step-By-Step (Fiber)
Test Strips (Prints)
Exposure Control (Printing)
Contrast Control (Printing) ...

Lightweight and small
E-TTL II flash
Flash exposure compensation
Histogram in image review
RAW+JPEG
Saturation, sharpness, contrast controls via "Picture Style" feature
Creative Auto feature simplifies image control ...

-Soft developer - paper developer that can be used alone or in combination with other developers (two-bath development) to achieve more subtle contrast control.

Then change the blending mode to Overlay, and lower opacity to 40% and viola: you've got an instant and adjustable contrast control over your image.

Click the "colorize" selection to apply the changes evenly over the image
Move the hue to a reddish/brown color
Desaturate the image until the reddish/brown tone is very faint
Use your program's contrast control to make any necessary exposure changes ...

is controlled by a variety of things--the size of the lens opening, the film speed, and the duration the lens remains open taking the picture. In digital photo editing, we can adjust exposure further, with the Brightness and Contrast controls.

The AF360FGZ on the *ist D supports red-eye reduction, P-TTL auto flash, TTL auto flash, slow-sync flash, trailing shutter curtain sync flash, contrast control flash, slave flash, high-speed flash sync and wireless flash.

I find Scala is a little low in contrast for many underwater subjects, but that can be enhanced by selective application of strobe light, or contrast control in processing.

Haze and contrast control are easier to achieve with black-and-white film than with color film (fig. 4-14). Black-and-White Infrared (IR) Film In aerial photography, black-and-white infrared (IR) film offers several advantages over panchromatic film.

See also: Contrast, Light, Image, Camera, Photograph