Aperture is linked to the speed of the shutter. Smaller f numbers means a faster shutter is required therefore meaning that higher f numbers require a slower shutter speed to let in more light.
Calculated as f stops f22 = full Depth of Field
f1.4/2.8 = shallow DOF
The faster the shutter speed the more action is frozen. The counter action to this is that to capture movement or record action you need a slower shutter speed. This can be various types of seconds. Panning with a fast shutter keeps a sharp focus for a better image but this leaves the background blurred. This means that you can not use a shutter that is less than your lens length without the use of a tripod otherwise your pictures will come out blurred.
ISO measures how sensitive the light is on the sensor. On bright days you should use low numbers & for higher numbers for when it is dark outside. There is more grain when the ISO is larger.
Here are a example of aperture, shutter & ISO:
Calculated as f stops f22 = full Depth of Field
f1.4/2.8 = shallow DOF
The faster the shutter speed the more action is frozen. The counter action to this is that to capture movement or record action you need a slower shutter speed. This can be various types of seconds. Panning with a fast shutter keeps a sharp focus for a better image but this leaves the background blurred. This means that you can not use a shutter that is less than your lens length without the use of a tripod otherwise your pictures will come out blurred.
ISO measures how sensitive the light is on the sensor. On bright days you should use low numbers & for higher numbers for when it is dark outside. There is more grain when the ISO is larger.
Here are a example of aperture, shutter & ISO:
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