Photo basics

SLR Camera: single lens reflex

Aperture: one way of restricting light
F Stop: 2.4 around 22

The shutter speed is the slow shutter and the fast shutter, the slow shutter gives more light in one second and the fast shutter gives less light in 1/1000 seconds, no slower than 1/25 for handheld cameras.

Depth of Field:
The lower the number the smaller the depth of field the larger the hole