The reading of the histogram (photography in 90 seconds)

The histogram is a graph showing the distribution of light or brightness in the image. Its horizontal axis ranges from black and dark shadow on the left or pure white light on the right side. While there is no "perfect" distribution for a histogram, a well-exposed image have luminance values falling within the histogram range for your camera, without falling pixel luminance values on the extreme left (shadow recorded as black) or on the extreme right (Highlightsrecorded as white), unless you try to achieve a particular result are creative. Fortunately, all modern digital cameras display a histogram, which you should check early and often to ensure that you achieve a good exposure. To view the histogram, preview your image on the LCD screen of the camera and film through the options until you see a diagram is (some cameras only show luminance, while others show the red, green and blue channel values). If it shows values on bothExtreme case, you can set your aperture, shutter speed or ISO, and then repeat the image to recover the lost data back. When the brightness values fall in the scene you histogram range (ie outside of their dynamics) and after making appropriate exposure settings, then you want to share may be right for shade and combine highlights of the frames, and then, or mix requirements in an image-editing software program such as Adobe Photoshop or Photomatix, the...