Camera in Manual Settings

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 rating.

ISO needs to be controlled to help the aperture within the photograph. ISO measures the sensitivity of the image sensor. 

ISO