Aperture and Shutter Speed

Chapter Eleven

*Aperture* and *shutter speed* work together. Aperture  is measured in( f-stops) and shutter speed in seconds or fractions of a second because both are calibrated so the each setting changes by a factor of two newer *(digital SLRs)* break that rule they are to some extent, interchangeable in controlling the amount of light that makes up the photo exposure.

The amount of light entering the camera with a photo exposure setting  of f *(/5.6 at 1/250)* seconds is the same as *(f/8 at 1/125)* seconds i.e. half the shutter speed and double the aperture make changes in one setting and after the other correspondingly and all things being equal the photo exposure will be the same.

Shutter speed and aperture have quite different pictorial effects. Aperture the *(depth of field)* how much of what you see in the viewfinder will be in focus shutter speed determines whether movement is blurred *(slow shutter speed)* or frozen *(fast shutter speed)*.

 

Which one you give priority to depends on how you see your subject and what you want to capture in your photo. *(DSLR)* cameras frequently provide program modes that priorities aperture or shutter speed e.g. in aperture priority mode, you set the aperture to a value for the photo you want to take and the camera adjust the shutter speed accordingly.

Next chapter is on ISO. If you have any question regarding Photography just feel free to ask. So stay with us and like us on facebook