Even with its light, compact body, the PT-EX500 produces brightness of 5,000 lm. In addition, the iris automatically adjusts itself to match the situation, resulting in high contrast ratio of 2,000:1. Panasonic's Daylight View Basic technology achieves sharp, easy-to-see images by clearly reproducing the details in dark image areas, which were previously difficult to see in brightly lit rooms. A built-in sensor measures the ambient light, and the Daylight View Basic function adjusts the halftone color and brightness level according to the surrounding illumination. The PT-EX500 projectors' optical block maintains a high level of performance over time, due to the use of inorganic materials in the LCD panels and polarizers, thus achieving a replacement cycle of 10,000 hours. It also makes them the logical choice for a truly dependable LCD projector system.