This is when you can control the aperture
within the frame. It is all to do with the lens
diaphragm that opens inside the lens. The
bigger the size of the diaphragm opening in a
camera lens, the more depth of field the
photograph will have. The smaller the size,
the photograph will have more of a focus and
less of a depth of field.
Aperture Value (Depth of Field)
This shows the different aperture which illustrates different depths of field in
different areas of the pictures.
Shutter priority allows you to control the shutter speed.
It lets you choose a specific shutter speed while the
camera adjusts the aperture and ISO sensitivity to make
sure the photo has the correct exposure.
Shutter Priority (Shutter Speed)
ISO is short for the International
Organisation for Standardization.
Rates like 100, 200, 300 etc. refers to the
films sensitivity light.
The higher the number, the more sensitive
to the light the film is and vice versa.
The ISO part is from the standards for film
sensitivity, and the number refers to its
ISO needs to be controlled to help the
aperture within the photograph. ISO
measures the sensitivity of the image