Photography did not start with the camera as we know it today; in fact, photography had to evolve over thousands of years. The first known writing of a device that would work like a camera was written in 475 BC by Mozi a Chinese Philosopher, where he wrote about a device that would project an image onto a wall just like a pinhole camera.
Today’s modern photography does maintain this basic science of how an image is made. Yet with today’s technology an image can be made in seconds where in the past it would have taken minutes or hours just to make one image. The ability to replicate the world around us is not a new and novel idea in fact it can be traced back to our ancient ancestors who drew the world around them. The oldest known image can be traced back to cave system called Maltravieso cave. This cave system is in Cáceres, Spain, this image is of red hands painted onto a wall.
An important part of photography is not just taking the picture, it is managing the process of saving your images. Managing your files correctly will make your work safer and faster. Proper file management can prevent accidently losing or misplacing your work. Finding the best file management for yourself starts with picking the right computer or storage device. Choosing the right equipment and understanding file management will help you master the digital process of photography.
The camera is a sophisticated device that works like the human eye. Each part of a camera dictates how much light is being let into the camera, creating an image. Digital and film cameras do not work much differently. The significant difference of digital and film cameras is how the images are stored. Newer cameras have automatic settings that are set to allow the camera to make the decisions for the photographer. The goal is to learn manual mode, enabling the photographer to control all aspects of the image.
The visible light spectrum is a part of the electromagnetic spectrum that we can see. It is the range of wavelengths called visible light. The longest wavelength is red, whereas the shortest is blue. Light plays a significant role in how our eyes perceive color. In photography, A color rendering index (C.R.I.) is a quantitative measure of the ability of a light source to faithfully reveal the colors of various objects compared to an ideal or natural light source. It is essential to know how the light source affects the colors in an image.
The aperture is the mechanical device that controls the amount of light that passes through a lens. The aperture controls the light by opening and closing a round passageway which constricts the amount of light that is let in through the lens. The size of the opening is called the F-stop. The lower the F-stop number, the bigger the opening, the higher the F-stop number, the smaller the lens opening. The aperture also controls the Depth of Field of an image, this is controlled by the size of the opening.
The shutter is a mechanical device that opens and closes allowing light to fall on to a digital sensor. The shutter speed refers to the amount of time the mechanical shutter is open. Shutter speed is measured in seconds – in most cases, fractions of seconds. The shutter speed affects two things, the amount of time light is able to fall onto the digital sensor, and the ability to stop action in an image. The digital sensor or electronic image sensor is the hardware that captures light and converts what you see through a viewfinder or LCD monitor into an image. By understanding how the shutter works a photographer can make images that show motion or dramatically change the way light looks in an image
ISO is the camera sensor's sensitivity to light. The lower the ISO number, the less sensitive the sensor is to light. The higher the ISO is, the more sensitive the sensor is to light. A high ISO is helpful in low light situations because it allows the camera sensor to become more sensitive to light. A low ISO is helpful in a bright light situation.
The exposure triangle is a common way of showing the relationship between the aperture, shutter, and ISO. Each element must be balanced to create the desired exposure for your image. An adjustment of one element requires an adjustment of at least one of the others.
White Balance is the processes of removing color casts so that subjects that are white in person look white in your photo. Light sources have a temperature measured by the Kelvin scale. Every light source gives off heat and with that heat is color. Knowing the Kelvin scale will help a photographer know how to correct the color casts made by given light source.
Metering is a way to measure the amount of light where you are about to shoot. Knowing the amount of light in your surroundings will help the camera and you find the right settings to make a successful photograph.
These are all the essential tools given to you while editing in photoshop. Each has a short description. The best way to learn to edit on photoshop is to play around on it yourself. Take an image, see what each tool does, and use it for your editing purposes.
Color Theory is an important design element that is used across art mediums. Color theory is also used in everyday life. The color wheel is a helpful tool to guide one through color theory. Colors share relationships that artists use to make their art visually appealing. Photographers who shoot in color have much to consider. Photographers can set a mood with colors, create symbolism, or have the viewer feel a certain way.
This class introduces students to the basics of critiques and the importance of critique etiquette. This course gives an introduction of what a critique is ,how critiques are run, how others look at images, and how to give a good critique.
This module will answer some question about how fair use works
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