Tuesday, August 18, 2015

DPI 1 & 2 Pretest


01.   On cameras that allow interchangeable lenses, there is a metal ring on the front of the camera where the lens will attach. This is called the:
a.       shutter release
b.      lens ring mount
c.       LCD screen
d.      viewfinder
e.      camera body

02.   Aperture is defined as:
a.       the ratio of the focal width and angle
b.      the adjustable opening in the camera that limits the amount of light passing through the camera’s lens and onto the film/image sensor (measured in f-stops, see fig 1)
c.       the angular motion of light which acts as a prism dividing white into a series of colors from which we derive ROY G BV
d.      the space between images and is never measured in a-stops
e.      all of the above

03.   F-Stop refers to (see Fig 1):
a.       the ratio of the focal length of a lens to the diameter of its aperture
b.      the size of an image based on measurements called f’s
c.       the time it takes to click the shutter of a camera
d.      the length of time a shutter is open; the total exposure is proportional to the duration of light reaching the film/image sensor
e.      all of the above

04.   Shutter-speed is defined as:
a.       the adjustable opening in the camera that limits the amount of light passing through the camera’s lens and onto the film/image sensor
b.      the time it takes to click the shutter of a camera
c.       the length of time a shutter is open; the total exposure is proportional to the duration of light reaching the film/image sensor
d.      the protective coating on the image sensor
e.      all of the above

05.   ISO is defined as:
a.       the isometric image sensor
b.      the equidistant image sensor
c.       film speed measurement of a film’s sensitivity to light (mimicked by the image sensor)
d.      the pixel speed of the sensor
06.   True(A)/False(B): Adjusting the aperture of your camera will modify the depth of field

07.    True(A)/False(B):  The shutter is the part of your camera where  your images are stored.

08.     True(A)/False(B): When photographing with a  slow shutter, use a tripod to avoid blur.

09.    True(A)/False(B): Having a high ISO can result in a noisy image.  


10.    True(A)/False(B): Adjusting the white balance in your camera can change the temperature of your photo 

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