Re: Quiz re: shutters - FYI

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: Focal Plane shutters are located
: close to the film plane


: Kerr cells incorporate
: polarizers


: Leaf or diaphragm shutter exposure times are calibrated with
: the lens wide open at 50% light level
guessing -
: shutter set to 1/500 second




: The ability to achieve short exposure times with 35mm cameras is
associated
: with:
: Venetian Blind shutters


: Easy interchangeability of lenses is associated with:
: Focal Plane shutters
: Leaf or Diaphragm shutters (either ;-)



: The ability to synchronize with flash at all speeds is associated with:
: Leaf or Diaphragm shutters


: Possible distortion of fast moving subjects is associated with:
: Focal Plane shutters
though it'd be interesting to see the effect mwith a Venetian Blind
shutter!

: If digital cameras incorporate a mechanical shutter it is usually a:
: Focal Plane shutter
: Leaf or Diaphragm shutters (either)


: Malfunctioning focal plane shutters tend to produce:
: uneven exposure


: A shutter that overexposes by 100% increases exposure over normal by:
: 1 EV or stop


: A shutter that consistently underexposes by 100% causes the film to
receive:
: 1 stop underexposure


: A .3 Neutral Density filter transmits what percentage of light incident
on it?:
: 50%


: In a given situation an automatic camera's shutter delivers perfect
exposure
: at f/8 and 1/1000 second but when it is used under 1/100 the amount of
light
: present for that case it exposes at f/8 for 1 second. The second exposure
is
: off by about:
: 6 EVs or stops


: The rule of thumb is that to ensure sharp photographs the exposure should
not
: be longer than:
: 1/the focal length in mm


: Modern focal plane shutters maintain even exposure across the film plane
by:
(Guessing here)
: putting increased drag on the accelerating curtain,
though this would work:
: increasing slit width proportionally to the increase in curtain speed


: Achieving a 100% efficient shutter leaf shutter is impossible because:
: it takes time to open and close the blades
(it's a speed thang)

k





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