Iso, Aperture And All That Stuff

[persephone]

Look HERE

excerpt:

When these three elements are combined, they represent a given exposure value (EV) for a given setting. Any change in any one of the three elements will have a measurable and specific impact on how the remaining two elements react to expose the film frame or image sensor and how the image ultimately looks. For example, if you increase the f-stop, you decrease the size of the lens’ diaphragm thus reducing the amount of light hitting the image sensor, but also increasing theDOF (depth of field) in the final image.

[mish13]

Thanks Persepone