Aperture or diaphragm is the term for the lens aperture. If likened to a window, then the diaphragm is kiray / curtain that can be opened or closed to adjust the amount of light entering. In the camera aperture is denoted with the letter F and the units as follows:
f/1.2
f/1.4
f/1.8
f/2.0
f/2.8
f/3.5
f/4.0
etc.
The smaller the unit number, the larger the lens aperture (f/1.4 larger opening than the f/4.0).
f/1.2
f/1.4
f/1.8
f/2.0
f/2.8
f/3.5
f/4.0
etc.
The smaller the unit number, the larger the lens aperture (f/1.4 larger opening than the f/4.0).
Figure aperture on the lens
So , the correlation between shutter speed and aperture is that the larger the lens aperture, the shutter speed will be faster, otherwise the smaller the lens aperture, the shutter speed will get slower.
