วันศุกร์ที่ 7 มกราคม พ.ศ. 2554

A glossary of terms Camera - What big words really mean

If you try to get a grip, the camera features new and different could mean difficult to describe all the terms used. This article will make many of these terms and give better access to the power of digital image processing at your fingertips for free.

Aperture: This is the hole that allows light into the camera. Its size is measured in f-stop, eg F2.8, F5, F8. The higher the f number the smaller the aperture.Most cameras automatically adjusts itself, although some have a manual operation.

Auto Focus: This is the object in the frame lock - usually in half pressing the shutter button.

Burst mode: It can sometimes be a sequence of shots in rapid succession. Burst mode, this is what you press the shutter button.

Compression: Digital images recorded by the camera's memory card can be compressed, can be higher. JPEG are used frequently.The higher the compression the more picture detail lost.

Composition: This is the art of designing your image. A simple guide is to use the rule of thirds. Insert an object of interest of a third of the way along, and one third of the way up or down. It makes a big difference.

Focus: this is how much of your image is sharp. In most compact cameras, this is not really a problem as the widest angle lens to keep the image in focus. The depth of field isf if the number is large. F If the number is small - say f2.8 - so about one third to focus on the image.

Digital Zoom: You can take the camera to digitally zoom the image appear larger or closer. This is not as good as optical zoom, which uses the camera lens, to achieve this goal.

DSLR:. Digital SLR Camera This allows a better control over the images a lot of time, the manual control over exposure settingschange the target for different focal lengths.

Display: This is the time the shutter is open. It can be manually changed to give different effects. For example, in sports it is advisable to freeze the motion so as to make a short exposure time. A long exposure time is running water can look silky and smooth.

Picture Stabilization prevents blurry images can shake this. As a beginner, take pictures, often will not be relaxed with the camera andTo operate the camera moves when the shutter button is pressed.

ISO: This measures the light sensitivity of the camera. With high ISO settings, you may have a shorter exposure time - useful if the lighting is dim. However, the high ISO to give more image noise.

The goal: a long focal length allows you to get closer to the action, and a wide angle lens, a wide-angle look around and are good for landscapes. You can change lenses on an SLR, but compressedThey usually have a zoom lens.

Storage: This is the bit that all the images. Their size is measured in gigabytes. The number of images you can store depends on the size of the card and the image resolution.

Noise: It 's like random dots of color in the image seen. You get more of it at high ISO settings. For noise levels down, keep the ISO as low as possible. It is not so important if you want to print photos on A4above.

Panning: This is a big impact when you pursue a subject with the camera with a long exposure time.

Pixel: This stands for picture element. They are the building blocks of the image and can be seen as small dots or squares as you are seen to increase

Red Eye: when the flash bounces inside the eye can get a red glow. Many cameras can try a pre-flash to prevent it.

Resolution: This is measured in millions of pixels or megapixels. L 'more megapixels more detail is captured. 12-14 megapixels is currently the upper limit for compact cameras. If you get much more than that, you get more noise in the image.

Scene Mode: The modern cameras have a mode of selection of scenes, for example, portraits, landscapes and night scenes. Choose this option if you prefer the camera has full control.

Shutter speed: This determines the exposure time. The faster the shutter speed, the shorter the exposureTime.

Upload: Once the images have to be taken to a PC.

Take time to understand what all these terms and early recordings that are the envy of all your friends.

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