Things you need to know before buy Camera |
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Don’t let yourself drown in jargon when you’re choosing your new digital camera- use Cheap Digital Cameras guide to make sense of its features |
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Mega Pixels The resoloution of a digital camera’s image sensor is measured in megapixels, with one megapixel equaling a million pixels, or tiny light sensors, Each camera has two megapixel values-total megapixels and effective megapixels. It’s the effective megapixels that are the important figure for the consumer (and the figure that we publish in DCB), because this is the number of megapixels directly used for capturing an image. |
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Resolution The pixel size of the image captured by the camera, measured in term of horizontal and vertical pixels, resolution can be adjusted in-camera by reducing or increasing the number of megapixels used to take a shot. |
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Camera Zoom Most cameras feature a zoom lens which can magnify the subject you’re shooting. There are two zoom types prevalent on digital compact cameras : optical zoom uses the optics of the lens itself to genuinely magnify the subject, white digital zoom simply “crops” the image closer, causing it to lose resolution |
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Aperture This is the opening in the lens that allows light to reach the image sensor. In most digital cameras, the size of the aperture can be adjusted to restrict or boost the amount of light hitting the sensor. This will be done automatically in Automatic mode, cameras with Aperture Priority mode is also active to set the aperture manually. |
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Digital Cameras Batteries Digital cameras are powered either buy a set of AA-sized batteries or by a lithium-ion mode, the battery pack will be supplied with the camera along with a charger. If the camera takes AA batteries, it’s common for a set of non-rechargeable cells to be supplied to get you started. This type of camera will usually be compatible with AA-sized Ni-MH or Ni-Cd rechargeable cells as well |
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Camera shake The natural shaking of our hands can cause the camera to wobble, resulting in blurred pictures. Many compacts now feature technologies to counteract the effect of camera shake. Each brand had its own name for this, but they’re commonly referred to as ‘Anti-shake’ or ‘Image stabilization’ modes. |
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Continuous shooting Also known as Burst mode, continuous shooting allows the camera to capture a sequence of shots in rapid succession, measured in frames per second (fps). The speed and maximum number of shots that can be taken in a burst varies from camera to camera. |
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Choise - DSLR Camera Stands for Digital Single Lens Reflex, a type of high-end digital camera in which the view finder enables you to view exactly what the camera is seeing through the lens (as opposed to the approximate framing offered by other camera viewfinders). DSLRs also feature interchangeable lens systems. |
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Camera Flash Flash is used to provide additional or directional light when capturing an exposure. All cameras have an auto flash setting that will fire whenever the camera thinks flash is required, but there are a number of other flash settings available to suit different shooting scenarios. These include Red-eye Reduction flash for countering red-eye, and the softer Fill-in flash for enhancing daylight shots that might otherwise be silhouetted. Some compact cameras, and all DSLR cameras, will also have a hot shoe for attaching an external flash unit |
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Focus All cameras feature an autofocus (often abbreviated to AF) system in which the lens adjusts itself automatically to focus on the subject of your photo. However, more sophisticated cameras also have a Manual focus (MF) system that enables you to set focus yourself. This is useful if you want to, for example, focus off-centre or onto a background rather than foreground subject. |
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Camera LCD This stands for liquid crystal display and refers to the screen on the rear of the camera. On most digital compacts the LCD is the main framing device when composing you shot, but can also be used to view and select options from camera menus and review the shots you’ve already taken |
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Metering The camera’s metering system measures the light intensity of the scene you’re shooting in order to set the most appropriate exposure level. Most cameras offer a range of metering options that measure light in different ways. For example, Spot metering mode measure light from a single point in the metering measures light from actors the frame and sets an average exposure. |
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