Welcome to Photography Course #1 When it comes to light and photography, its helpful to understand some of the basic physics behind light and lenses. The word “photography” was created from the Greek roots (phōtos, phōs, and graphé) which together means “drawing with light”. It is important to remember that light is the primary working tool of any photographer. Light Rays Light is the visible portion of the electromagnetic spectrum that starts from red (the weakest of rays), to violet (the strongest of rays). Light rays from the sun are considered white because they contain all the colors of the spectrum. Black is simply the absence of any color. When we place a prism in front of a white light ray, the prism will diffract (or separate) the ray into all the colors of the spectrum. Light Refraction through a Prism Stop for a minute and watch this animation. When we place a LENS in front of any ray, that lens will simply refract (bend) that ray. Camera Lens A camera lens is ground or molded transparent material (glass or plastic) that refracts light rays to form an image. A lens focuses light onto the sensor of a digital camera to create an image. It […]
Hi, I am Olushola Joseph known as Sholexx Photography, using a blend of technical skills and artistic eye to take pictures of people, places, landscape, events, objects, food, etc. Photography remains one of my biggest passions, I records events and tells stories using images.