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<blockquote data-quote="Horoscope Fish" data-source="post: 360015" data-attributes="member: 13090">Think of aperture like you do shutter speed; as a fraction. Then consider the total amount of light needed for correct exposure being your whole &quot;light pie&quot;. Every shot needs two slices of &quot;light pie&quot; to make a whole pie: one &quot;slice&quot; of shutter speed and one &quot;slice&quot; of aperture.This being the case...1/30 will always be more &quot;light pie&quot; than 1/125, just as f/4 (1/4) gives us more &quot;light pie&quot; than f/32 (1/32) would. Now combine the two... 1/30 at f/8 is one completely and properly exposed &quot;light pie&quot; but 1/60 at f/5.6 or 1/15 at f/11 would give us the same, equally correct exposure. The key thing is, we always want one whole pie (0 EV (zeros are round like pies)), but we can slice the pie using shutter speed and aperture to creatively control the final outcome. The aperture &quot;slice&quot; allows us to control depth of field, shutter speed &quot;slice&quot; controls motion/motion blur but always in tandem to give us proper exposure (one whole pie).Mmmmm... Pie!....</blockquote>

[QUOTE="Horoscope Fish, post: 360015, member: 13090"] Think of aperture like you do shutter speed; as a fraction. Then consider the total amount of light needed for correct exposure being your whole "light pie". Every shot needs two slices of "light pie" to make a whole pie: one "slice" of shutter speed and one "slice" of aperture. This being the case... 1/30 will always be more "light pie" than 1/125, just as f/4 (1/4) gives us more "light pie" than f/32 (1/32) would. Now combine the two... 1/30 at f/8 is one completely and properly exposed "light pie" but 1/60 at f/5.6 or 1/15 at f/11 would give us the same, equally correct exposure. The key thing is, we always want one whole pie (0 EV (zeros are round like pies)), but we can slice the pie using shutter speed and aperture to creatively control the final outcome. The aperture "slice" allows us to control depth of field, shutter speed "slice" controls motion/motion blur but always in tandem to give us proper exposure (one whole pie). Mmmmm... Pie! [COLOR=#ffffff]....[/COLOR] [/QUOTE]

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