* The higher the ISO the more sensitive the sensor is going to be to light. * The lower the ISO the less sensitive the sensor is going to be to light. You use low ISO when shooting in daylight or with studio light. You use high ISO when there is not a lot of light available. The drawback of high ISO is graininess/noise in picture.
This is an explanation of the 3 main components of exposure that need to be understood in order to shoot successfully in Manual mode.
Learning DSLR camera basics can be very easy if you understand and learn how a dslr camera works. The three mechanisms that make it work and that is the Shutter, Aperture and ISO if you learn these three you will learn how to use a DSLR.
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