欧美亚洲国产偷拍av

板栗和葫芦相视一笑：这个三叔，也太实诚了，人家小二还站在一旁没走呢。急患 佐野史郎 近藤真彦Liaoning ProvinceLet me explain this1998年7月，香港新机场启用前十天，恐怖组织悄悄潜入香港……"Exposure compensation is also called EV, which is an abbreviation of Exposure Values and a quantity reflecting the amount of exposure. EV +/-commonly known as exposure compensation, it was originally defined as: when the sensitivity is ISO 100, the aperture coefficient is F1, and the exposure time is 1 second, the exposure is defined as 0, the exposure is reduced by one gear (the shutter time is reduced by half or the aperture is reduced by one gear), and the EV value is increased by 1. Increasing and decreasing exposure compensation depends on adjusting the rocker. The shooting environment is relatively dim and needs to increase brightness. When the flash cannot work, the exposure can be compensated and the exposure can be appropriately increased. "