In digital photography, clipping means that a pixel has no light/color information – it’s either pure white or pure black. In the case of black clipping, it means that a pixel is pure black.
The picture to the left shows an image in Adobe Lightroom with the clipping indicators on. All of the blue areas (mostly black curtains in the background, where very little light came back to the camera) have been clipped, and they’re simply black pixels. Keep reading…
The basic idea of tethering is that you hook your camera up to a computer and the computer becomes involved in the image capturing process. There are two ways that the computer might be involved: storing the images and controlling the capture.
The simplest use of tethering is to immediately download the pictures you take onto your computer. Normally, images are stored on an SD card (or similar storage device) in your camera. You can see them on the tiny LCD screen, but if you want to preview a larger version of the image you’ll have to pop the card out, import the pictures to your computer, and then open them up. This can be time consuming. Tethering cuts out the middle man, immediately downloading the image to your computer. More to come on how to set this up, but with Lightroom 3 it is insanely simple. Keep reading…
A stop (might also be called an f-stop or an exposure stop) is a basic but important term in photography. You might hear someone say that a picture is “Underexposed by 1 stop” or “The picture is overexposed, turn the exposure down one stop.” The term “stop” is a relative term defining the amount of light in a picture.
If you increase the exposure by one stop, you double the amount of light in the picture. If you decrease the exposure by one stop, you halve the amount of light in the picture.
If someone says, “The picture is underexposed by 1 stop,” they’re making a comparison between the picture they see and what they think the proper exposure should be. If you double the amount of light in the image, it should look better. Keep reading…
On most cameras, you’ve got a handful of automatic of semi-automatic modes. One of those is usually Shutter Priority Mode. It’s usually identified with the Tv label on the settings dial. It might also be labeled simply with a “T” or an “S”.
In shutter priority mode, you select a shutter speed. The camera then automatically chooses an aperture value that gives you the proper exposure. This might be a good option if you want to control the amount of motion blur in the picture – choose a slow shutter (i.e. 1/30th of a second) and you can force the camera to capture a little blur. Choose a quick shutter (i.e. 1/250th of a second), and you’ll eliminate most of that blur. Keep reading…
In digital photography, clipping means that a pixel has no light/color information – it’s either pure white or pure black. In the case of black clipping, it means that a pixel is pure black.
