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The American standard for transfer volume is a billion cubic microns per square inch, typically written as BCM / in 2, BCM/sq in, or BCM. A cubic micron (μm 3) is a unit of volume and one billion cubic microns (1 000 000 000 μm 3) is equal to 0.001 cm 3. Since one square meter is equal to 1550 square inches, it follows that 1 BCM/in 2 = 1.55 ...
A 1951 USAF resolution test chart is a microscopic optical resolution test device originally defined by the U.S. Air Force MIL-STD-150A standard of 1951. The design provides numerous small target shapes exhibiting a stepped assortment of precise spatial frequency specimens. It is widely used in optical engineering laboratory work to analyze and ...
Dots per inch (DPI, or dpi[1]) is a measure of spatial printing, video or image scanner dot density, in particular the number of individual dots that can be placed in a line within the span of 1 inch (2.54 cm). Similarly, dots per centimetre (d/cm or dpcm) refers to the number of individual dots that can be placed within a line of 1 centimetre ...
The image would be a very low quality image (72ppi) if printed at about 28.5 inches wide, but a very good quality (300ppi) image if printed at about 7 inches wide. The number of photodiodes in a color digital camera image sensor is often a multiple of the number of pixels in the image it produces, because information from an array of color ...
The alternative Super series, denoted SnR, nR Plus or nR+, has an aspect ratio of 3∶2 (or as close as possible) and thus provides a better fit for standard 135 film (35 mm) at sizes of 8 inches or above. 5R is twice the size of a 2R print, 6R twice the size of a 4R print and S8R twice the size of 6R. 4D/6D is a newer size for most consumer ...
Heraldic flag. In heraldry and vexillology, a heraldic flag is a flag containing coats of arms, heraldic badges, or other devices used for personal identification. Heraldic flags include banners, standards, pennons and their variants, gonfalons, guidons, and pinsels. Specifications governing heraldic flags vary from country to country, and have ...
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The ColorChecker Classic chart is a rectangular card measuring about 11 by 8.25 inches (27.9 by 21.0 cm), or in its original incarnation about 13 by 9 inches (33 by 23 cm), an aspect ratio approximately the same as that of 35 mm film. [5]