Recording Aperture Blur

Shutter Speed Definition: 

1. the nominal time for which a shutter is open at a given setting.

   
   

   Aperture Definition: 

   
   

   a space through which light passes in an optical or photographic instrument, especially the variable opening by which light enters a camera.

   
   

   ISO:

   
   

   In Digital Photography ISO (International Standards Organization) measures the sensitivity of the image sensor. The same principles apply as in film photography – the lower the number the less sensitive your camera is to light and the finer the grain. Higher ISO settings are generally used in darker situations to get faster shutter speeds.