IAI Crime Scene Photography Questions and
Answers 100% Correct
For accurate color capture only use midday sunlight or use a flash
Shade, cloudy, twilight blue
Sunrise, sunset red
Tungsten yellow/amber tint
Fluorescent green tint
White balance only works on things that are white
Exposure latitude film can not capture all the scenes details in extreme lighting
conditions. More restricted when a digital camera is used
,Dynamic range the exposure extremes digital pixels can detect and record
Film overexpose
Digital underexpose
ISO 100 speed film correctable for a 2 f-stop overexposure and a 1 f-stop underexposure
ISO 400 speed film correctable for a 3 f-stop overexposure and a 2 f-stop underexposure
Exposure latitude more restricted when a digital camera is used
Burning adds light or burns areas of a negative that were previously underexposed
Dodging light is held back from areas of a negative needing less light than the print as a
whole that were previously overexposed
Movement that can be controlled photographer body movement
,subject movement
camera movement
To eliminate blur use the shutter speed that is closet to the focal length of the lens of the
camera
Freeze motion fast shutter speed
electronic flash
panning
Eliminate rain and snow 2 to 3 second shutter speed
Neutral density filter blocks light coming in through the lens, helps prevent overexposure
in outdoor scenes
Polarizer filter eliminates reflections from windows and water, eliminates glare, helps
prevents overexposure
, Reciprocal exposures variety of f-stop shutter speed combinations result in the exact
same exposres
Theory of reciprocity for every photo opportunity there are multiple exposure
combinations to choose from
Shutter speed for most crime scene photos 1/60 with f-stops: f22, f16, f11 and f8
Reciprocity failure usually occur at shutter speeds longer the 1 second and faster the
1/1000th second
Digital cameras suffer from noise
Dark noise digital sensor is exposed for long time intervals in dim lighting situations,
results in grainy images, where pixels are not properly recording colors and light levels
accurately
Light standard 18% gray card reflects 18% of light that strikes it
Answers 100% Correct
For accurate color capture only use midday sunlight or use a flash
Shade, cloudy, twilight blue
Sunrise, sunset red
Tungsten yellow/amber tint
Fluorescent green tint
White balance only works on things that are white
Exposure latitude film can not capture all the scenes details in extreme lighting
conditions. More restricted when a digital camera is used
,Dynamic range the exposure extremes digital pixels can detect and record
Film overexpose
Digital underexpose
ISO 100 speed film correctable for a 2 f-stop overexposure and a 1 f-stop underexposure
ISO 400 speed film correctable for a 3 f-stop overexposure and a 2 f-stop underexposure
Exposure latitude more restricted when a digital camera is used
Burning adds light or burns areas of a negative that were previously underexposed
Dodging light is held back from areas of a negative needing less light than the print as a
whole that were previously overexposed
Movement that can be controlled photographer body movement
,subject movement
camera movement
To eliminate blur use the shutter speed that is closet to the focal length of the lens of the
camera
Freeze motion fast shutter speed
electronic flash
panning
Eliminate rain and snow 2 to 3 second shutter speed
Neutral density filter blocks light coming in through the lens, helps prevent overexposure
in outdoor scenes
Polarizer filter eliminates reflections from windows and water, eliminates glare, helps
prevents overexposure
, Reciprocal exposures variety of f-stop shutter speed combinations result in the exact
same exposres
Theory of reciprocity for every photo opportunity there are multiple exposure
combinations to choose from
Shutter speed for most crime scene photos 1/60 with f-stops: f22, f16, f11 and f8
Reciprocity failure usually occur at shutter speeds longer the 1 second and faster the
1/1000th second
Digital cameras suffer from noise
Dark noise digital sensor is exposed for long time intervals in dim lighting situations,
results in grainy images, where pixels are not properly recording colors and light levels
accurately
Light standard 18% gray card reflects 18% of light that strikes it
