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Full frame sensor

This is a sensor the same size as the 35mm film negative, measuring 36 x 24mm. This is the most desirable camera type for most enthusiasts and pros, but full frame cameras are bigger, heavier and more expensive. Most DSLRs and mirrorless cameras use smaller APS-C sensors.

Focal length vs ‘effective’ focal length

August 25, 2019 by Rod Lawton

Lenses are always identified by their focal length. It’s not just a physical measurement, it’s an indication of the type of lens it is, for example, a wideangle lens, standard lens, telephoto and so on. In other words, the focal length of the lens gives you an indication of its angle of view. Or at […]

Lens types and what they’re used for

August 24, 2019 by Rod Lawton

The advantage of interchangeable lens cameras like DSLRs and mirrorless cameras is that you can change lenses for different kinds of photography. There are many different types of lenses, often with specific names. Lenses are usually characterised or grouped by their focal length. It might be more useful to use their angle of view instead, […]

Camera types and what they do

August 23, 2019 by Rod Lawton

If all you want to do is take pictures and you don’t know much about cameras, the range of camera types on the market is bewildering. Even if you do know a bit about cameras, it’s not easy to weigh up one type against the other and make a decision about which to get. So […]

Sensor size and why it matters

August 14, 2019 by Rod Lawton

In the days of film, it was well understood that the bigger the negative, the better the quality of the picture. The same is true with digital cameras, only here the ‘negative’ is the sensor. The larger the sensor size, the better (generally) the picture quality. Megapixels do confuse the issue somewhat because you can […]

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