Recent Posts

Image Noise

The electronic sensors used in digital cameras do not always record light perfectly. As we discussed before, you can think of the sensor as being made up of millions of tiny light collectors, each of which is keeping a count of how much light hits the sensor. This count is not always 100% accurate, and […]

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The Histogram

It can be difficult to accurately judge whether a photograph is correctly exposed or not. This is not made any easier by the LCD screens that feature on DSLR cameras – these often do not show the image very accurately or in very good quality. Luckily there is a tool on most DSLR cameras that […]

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Aperture

Light enters a camera through a small hole in the front of the camera.  The size of this hole can be controlled and is referred to as the ‘aperture’. The bigger the aperture, the bigger the hole, and the faster light can enter the lens. If we think of shutter speed as controlling the time […]

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Shutter Speed

Shutter speed, or exposure duration, is quite simply the amount of time for which light is allowed to enter the camera.  When you press the button to take a photograph a ‘shutter’ at the front of the lens opens and light can enter the camera. After a set amount of time the shutter closes again […]

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Focus

What is Focus? Focus is an extremely important concept in photography. A photographer can use focus to highlight certain objects in an image, to create an air of mystery, or to invoke a dream-like nature. In this lesson the basic principles of focus will be explained, and we will begin to look at ways to […]

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Exposure

Fundamentally a camera is a device designed to capture and record light. One of the first steps towards better photography is learning how to control the amount of light that the camera captures.  There are two main ways to do this – one is to capture light for a longer or shorter time, and the […]

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Learning Photography

By the end of this course you should have a good overview of how a camera works, what the different accessories are for, how to use the important features of a DSLR, and know the basics of composing a photograph. While you should see an improvement in the quality of your photographs, I’m not going […]

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How To Choose a Camera

Buying a camera for the first time can be a daunting process. Modern cameras are often expensive and come with descriptions full of technical jargon that newcomers struggle to understand. There are also many different types of camera now available, from smartphone cameras to top of the range DSLR cameras. In this lesson I will […]

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How a Camera Works

In this lesson we’ll cover some of the fundamental ways in which a camera actually works.  We’ll take a look at the major components of a camera, and get a basic understand of what each one is for and how it works. On a basic level we can think of a camera as a kind […]

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A Brief History of Photography

Before we begin to look at the technical details of photography it is interesting to take a look at how photography has developed over the years, and to get an understanding of how different techniques have developed and faded away over time. We usually think of photography as beginning at the end of the Victorian […]

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