文档介绍：11DIGITAL DIGITAL PHOTOGRAPHYPHOTOGRAPHY Joe Collins Joe Collins34 slides34 slides22CAMERA BASICSCAMERA BASICSThese basicsThese monto ALLto ALLcameras:cameras:??F-StopF-Stop??Shutter Shutter SpeedSpeed??Film SpeedFilm Speed33CAMERA BASICSCAMERA BASICS?F-Stop (how much light is seen, how much the aperture is open)?Shutter Speed (how long the light is seen in the aperture)?FILM SPEED (how fast the film itself responds to this light)44F-STOPF-STOPHOW MUCH LIGHT IS SEENHOW MUCH LIGHT IS SEEN??Sometimes known as Sometimes known as ‘‘apertureaperture’’??Ranges from about to 32Ranges from about to 32??A higher number (. 32) means less A higher number (. 32) means less light is light is ‘‘seenseen’’..??A lower number (. ) means A lower number (. ) means more light is more light is ‘‘seenseen’’..55F-STOPF-STOPHIGHER F-stop (. 32)HIGHER F-stop (. 32)ADVANTAGESADVANTAGES??Increased Increased depth of fielddepth of field, . image , . image background is not blurrybackground is not blurryDISADVANTAGESDISADVANTAGES??Needs more light, . slower Needs more light, . slower shutter -STOPF-STOPLOWER F-STOP (. )LOWER F-STOP (. )ADVANTAGESADVANTAGES??Lets plenty of light in! Better to use in Lets plenty of light in! Better to use in darker settings.??Less blurry since faster shutter speed Less blurry since faster shutter speed may be needed pensate for may be needed pensate for more ??No depth of field, . No depth of field, . background of background of image likely out of likely out of -STOP IMPACTF-STOP IMPACTLow F-stopLow F-stopHigh F-stopHigh F-stop88SHUTTER SPEEDSHUTTER SPEEDMEASURES HOW LONG LIGHT IS MEASURES HOW LONG LIGHT IS LET INTO THE FILM/CAMERALET INTO THE FILM/CAMERA??Common values mon values include ?? sec, 1/8 second, sec, 1/8 second, 1/1000 second etc1/10