Variables y factores exposición LNH
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Transcript of Variables y factores exposición LNH
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EXPOSICIÓN
Factores que intervienen la
exposición
Distancia focal Variable de la exposición
DIAFRAGMA
VELOCIDAD DE OBTURACIÓN
Iso°
• Objetivo Normal
• Objetivo Gran
angular
• Telefoto
• Macro
• Ojo de pez
• Zoom
Sobrexposición
Sobrexposición
Exposición correcta
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VELOCIDAD DE OBTURACIÓN
BARRIDOS CONGELADOS
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FONDOBARRIDO DE
OBJETO/SUJETO
ZOOM LUZ
MULTIPLEXOSICIÓN
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DIAFRAGMA
Determina
PROFUNDIDAD DE CAMPO FOCO SELECTIVO
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1. APERTURA DEL DIAFRAGMA
A mayor número de diafragma= mayor profundidad de campo
2. DISTANCIA FOCAL
A menor distancia=mayor profundidad de campo
3. DISTANCIA DEL OBJETO
A Mayor distancia del objeto=mayor profundidad de campo
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1. Apertura del diafragma
2. Distancia focal
3. Distancia del sujeto/objeto
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Factores que determina el ISO°
RUIDO
MAYOR ISO° MENOR ISO°
MAYOR
RUIDO
MENOR
RUIDO
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Escala de sensibilidades ISO con incrementos de
1/3 de EV
50 64 80 100 125 160 200 250 320 400
500 640 800 1000 1250 1600 20002500 3200
4000
5000 6400 8000 10000 12500 16000 20000 25000
32000 40000
50000 64000 80000 100000 128000
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VARIABLE DE EXPOSICIÓN
SOBREXPOSICIÓN SUBEXPOSICIÓN EXPOSICIÓN
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