LESSON 3.1 - UNDERSTANDING APERTURE
This lesson explains the fundamentals of aperture. It will also help you to understand the aperture measurement scale, which is probably the most challenging part of comprehending aperture. You will also discover how aperture and shutter speed relate to each other.
NEXT LESSON: 3.2 Aperture Special Function
Lens limitations
Other things that affect area of focus
Focal length and area of focus