In street photography there are many different techniques to use, here are some of the best and most important.
Aperture – The aperture dial on a camera allows your to adjust and control the amount of light that is let into the image sensor. This technique is best used for portraits, having a wide aperture means the camera allows you to focus on one subject and gradually blur out the background making the subject the main focus.
Shutter speed – Shutter speed is one of several methods used to control the amount of light recorded by the camera’s digital sensor. Slower shutter speeds are often selected to suggest movement in a still photograph of a moving subject.