Something to ponder and for someone to possibly use ... andy Focal Plane shutters are located just behind the lens inside the camera's lens next to the diaphragm close to the film plane Kerr cells incorporate polarizers RGB filters ND filters a photocell Leaf or diaphragm shutter exposure times are calibrated with the lens wide open at 50% light level a .3 ND filter shutter set to 1/500 second at f/32 The ability to achieve short exposure times with 35mm cameras is associated with: Focal Plane shutters Leaf or Diaphragm shutters Kerr cells Venetian Blind shutters Easy interchangeability of lenses is associated with: Focal Plane shutters Leaf or Diaphragm shutters Kerr cells Venetian Blind shutters The ability to synchronize with flash at all speeds is associated with: Focal Plane shutters Leaf or Diaphragm shutters Kerr cells Venetian Blind shutters Possible distortion of fast moving subjects is associated with: Focal Plane shutters Leaf or Diaphragm shutters Kerr cells Venetian Blind shutters If digital cameras incorporate a mechanical shutter it is usually a: Focal Plane shutter Leaf or Diaphragm shutters Kerr cells Venetian Blind shutters Malfunctioning focal plane shutters tend to produce: uneven exposure no exposure overexposure underexposure A shutter that overexposes by 100% increases exposure over normal by: 1 EV or stop 2 EVs or stops 3 EVs or stops undefined amount A shutter that consistently underexposes by 100% causes the film to receive: 1 stop underexposure 2 stops of underexposure 3 stops of underexposure no exposure A .3 Neutral Density filter transmits what percentage of light incident on it?: 10% 50% 100% 200% 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: 1 EV or stop 3 EVs or stops 6 EVs or stops 10 EVs or stops The rule of thumb is that to ensure sharp photographs the exposure should not be longer than: 1/ISO speed of the film 1/the f number of the lens 1/the focal length in inches 1/the focal length in mm Modern focal plane shutters maintain even exposure across the film plane by: putting increased drag on the accelerating curtain adjusting lens f/number during exposure increasing slit width proportionally to the increase in curtain speed decreasing slit width proportionally as curtain speed increases Achieving a 100% efficient shutter leaf shutter is impossible because: these shutters are not capable of short exposure times the shutter is located between the lens elements the shutter first has to open 50% before reaching full aperture it takes time to open and close the blades
