Shutter Speed - How fast the shutter opens and closes
f/250th of a second is large
f/50th of a second is small
Slow shutter speed is for dark conditions
Fast shutter speed if for capturing fast objects
Aperture is usuallyexpressed in f-numbers
f/2.1 is large
f/2.2 is small
High number - A smaller hole
The higher the number the higher the depth of field
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| Clock captured in focus |