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Exposure جلسه 4:

Exposure جلسه 4: . نوردهی و سرعت شاتر. Exposure.  اثر نوری که بر روی سنسور های دوربین می افتد مثلث نوردهی : ISO , Shutter speed, Aperture Exposure Value  (EV), or stops . Effects of changing Values. Shutter speed  motion blur Aperture  Depth of the field F-number (Aperture):

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Exposure جلسه 4:

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  1. Exposureجلسه 4: نوردهی و سرعت شاتر

  2. Exposure •  اثر نوری که بر روی سنسور های دوربین می افتد • مثلث نوردهی: ISO , Shutter speed, Aperture • Exposure Value (EV), or stops

  3. Effects of changing Values • Shutter speed  motion blur • Aperture  Depth of the field • F-number (Aperture): مقدار نوری که به سنسور میرسد • ISO  image noise Low f-stop (f/2.0) high f-stop (f/16)

  4. HDRI • Exposure bracketing • 13% Gray

  5. Underexposed and Overexposed • Portrait: low f-stop • Landscape: high f-stop • Sports: fast shutter speed + low f-stop + increase ISO • Nights: long shutter speed+ increased ISO

  6. Note • Sunny 16 : ISO 200, f 1/16, 1/250 • A Sunny day outdoors — 1/2000 sec • A hazy bright day — 1/1000 sec • A bright cloudy day without shadows — 1/500 sec • An overcast day, or open shade on a sunny day — 1/250 sec • A heavily overcast day — 1/125 sec • Deep shade. The woods on an bright overcast day — 1/60 sec • Just before a thunderstorm or late on a heavily overcast day — 1/30 sec • A brightly lit store interior — 1/15th sec • A well lit stage or sports arena — 1/8th sec • A well lit home interior — 1/4 sec

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