Digital Camera Tips
Preventing Under Exposure "In the Pocket Camera"
Users of compact cameras are generally complained that indoor pictures they get tend to be less light (under exposure). This often happens on the cameras that rely on built-in flash with range (coverage) plus a limited area of practice shooting at a maximum distance range of flash.
What often happens is:
1. At wide angle lens (zoom out max), only the central region alone who is bright, while at the edge / corner, tend to be dark, this occurs due to the limited
coverage area of flash.
2. At the telephoto lens (zoom in max), the overall picture tends to be less bright (under) because of the light flash is less powerful. This is due to reduced
coverage of the flash due to a smaller aperture opening when activated zoom in.
To avoid this problem, we need to know the capabilities of built-in flash on the camera. In compact cameras, generally only the data given the maximum range of built-in flash, for example: at ISO 100 with the wide angle range of built-inflash is 3m, while at the telephoto range is reduced to 2m. This distance is changed, more or less comparable with the ISO is used. For example, the increase in 1 stop / double (ISO 200), the distance is increased by ¼ time. At 2 stops / quadruple (ISO 400), the distance increased 2 time. Conversely, if reduced to ISO 50, the distance decreased 0.7 time.
To prevent under exposure, try to take pictures in the distance before / below max flash range.
There are several things that must be noted that the image produced is not under exposure, namely:
- Use the highest ISO the camera to take pictures in low light conditions (low light) and / or to fast-moving objects (photos sport / action), you can also see these features on Nikon S8100. However, the use of high ISO on the camera are generally bersensor small pocket will cause noise (in an analog camera or a camera that uses film called grainy) due to increased sensitivity to light the camera sensor. However, this noise level is still feasible to print small size (3-4R), if you are "allergic" to the noise, avoid ISO 400, ISO use ISO 200 as the highest.
- Use a flash with a low speed (slow synch flash) for the object and background is well exposed to light.. The use of flash with the low speed is particularly useful for taking pictures at night (night shoot / scene) you can also see these features on Nikon S8100. But remember, because it uses a low speed, the camera and photograph the object must still does not move and are advised to use a tripod to prevent the results of image shake due to hand vibrations. The lower speednya, more and more natural color of the original light which is recorded (eg the color of a more warm incandescent lamp).
