Pentax IQZoom 280P IQZoom 280P Manual - Page 35

Exposure Compensation Hard-to-autofocus subjects Like many other autofocus cameras, the camera's autofocus system is highly precise, but not perfect. Some subjects may not be focused as you wish. In such a case, use the focus-lock technique on a subject near the actual one and equidistant from the lens. Subjects which may fool the system include: 1. Black objects like hair, which don't reflect much light (and therefore don't reflect infrared autofocus beams). 2. Wire netting, latticework, iron exercisebars, etc. 3. Flickering light sources such as neon signs, fluorescent lamps, TV images, sunlight coming through trees, etc. and subjects illuminated by these light sources. 4. Glossy and reflective surfaces like glass, mirrors, car bodies, etc. 5. Fast-moving objects, like trains or automobiles in motion. 6. Water jets, water surface, smoke, flame, fireworks, etc., which have no distinct or consistent form, or a subject in mist. Exposure compensation is an adjustment to brighten or darken the whole picture when shot in high-contrast lighting conditions. Use the "+" side for situations with bright backgrounds or the "-" side for situations where the central subject is too brightly lit from the front. Exposure compensation is possible in the range from +3EV to -3EV in 0.5EV step. This compensation can be used in combination with the various exposure settings. • Once the exposure compensation is set, the compensated value will be stored in memory until the film is replaced. To cancel exposure correction, reset the corrected value to ±0. 31