Search results
Results from the WOW.Com Content Network
The French scale, also known as the French gauge or Charrière system, is a widely used measurement system for the size of catheters.It is commonly abbreviated as Fr but may also be abbreviated as Fg, FR or F, and less frequently as CH or Ch (referencing its inventor, Charrière).
Sizes are often expressed as a fraction of an inch, with a one in the numerator, and a decimal number in the denominator. For example, 1/2.5 converts to 2/5 as a simple fraction, or 0.4 as a decimal number. This "inch" system gives a result approximately 1.5 times the length of the diagonal of the sensor.
A good example of this a 4×6 print (6 inch wide by 4 inch tall landscape) perfectly matches the 3:2 aspect ratio of a DSLR/35 mm, since 6/2=3 and 4/2=2. For analog projection of photographic slides, projector and screen use a 1:1 aspect ratio, supporting horizontal and vertical orientation equally well.
Masked (or flat) widescreen was introduced in April 1953.The negative is shot exposing the Academy ratio using spherical lenses, but the top and bottom of the picture are hidden or masked off by a metal aperture plate, cut to specifications of the theater's screen, in the projector.
Academy ratio 1.375:1. The Academy ratio of 1.375:1 (abbreviated as 1.37:1) is an aspect ratio of a frame of 35 mm film when used with 4-perf pulldown. [1] [2] It was standardized by the Academy of Motion Picture Arts and Sciences as the standard film aspect ratio in 1932, although similar-sized ratios were used as early as 1928.
37.5 inches (95 cm) 38.5 inches (98 cm) Point of shoulder to point of hip 46 inches (117 cm) 49 inches (124 cm) Point of hip to point of hip 25 inches (64 cm) 26 inches (66 cm) Point of hip to hock: 40 inches (100 cm) 40 inches (100 cm) Point of hip to buttock 24 inches (61 cm) 24 inches (61 cm) Poll to withers (neck length)
It is most commonly used in hunting cartridges. The measurement equals 0.30 inches or three decimal lines, written .3″ and read as three-line. [1] The 7.62 mm designation refers to the internal diameter of the barrel at the lands (the raised helical ridges in rifled gun barrels).
Measurements are in millimeters then inches, i.e. mm (in). Pistol cartridges. Name Bullet Case type Case length Rim Base Shoulder Neck OAL .25 ACP (.25 Auto) 6.375 ...