PROBLEM TO BE SOLVED: To provide an endoscope apparatus and a method for controlling brightness or the like capable of most suitably controlling brightness to an observation object.SOLUTION: An endoscope apparatus includes an objective optical system 201 in which an observation magnification of at least a center of an observation range is variable, a magnification control section 208 for controlling the observation magnification, and a brightness control section 210 for performing a photometric process in which a center of an image corresponding to the center of the observation range is more emphasized when the observation magnification is higher second magnification than a first magnification compared with a case where the observation magnification is the first magnification, and adjusting the brightness of the image based on the result of the photometric process.COPYRIGHT: (C)2013,JPO&INPIT【課題】観察対象に対して最適に調光することが可能な内視鏡装置及び調光制御方法等を提供すること。【解決手段】内視鏡装置は、観察範囲の少なくとも中央部における観察倍率が可変である対物光学系201と、観察倍率の制御を行う倍率制御部208と、観察倍率が、第1の倍率よりも高い第2の倍率である場合には、観察倍率が第1の倍率である場合に比べて、観察範囲の中央部に対応する画像の中央部をより重視した測光処理を行い、測光処理の結果に基づいて画像の明るさを調整する制御を行う調光制御部210と、を含む。【選択図】図1
