PROBLEM TO BE SOLVED to improve convenience. An endoscope apparatus 1 includes an insertion section that is inserted into a subject and captures a subject image in the subject from the distal end, an imaging section 54 that captures an image of the subject, an image obtained by imaging by the imaging section 54 A brightness changing section 100 for changing the brightness of the captured image in accordance with the brightness parameter for changing the brightness of the captured image to be captured, and a brightness changing section 100 for changing the brightness of the captured image based on the brightness parameter, An object distance calculation unit 954 for calculating the distance, and a distance information informing unit 200 for notifying distance information on the subject distance. (FIG.【課題】利便性の向上を図ること。【解決手段】内視鏡装置1は、被検体内に挿入され、先端から当該被検体内の被写体像を取り込む挿入部と、被写体像を撮像する撮像部54と、撮像部54による撮像で得られる撮像画像の明るさを変更するための明るさパラメータに応じて、当該撮像画像の明るさを変更する明るさ変更部100と、明るさパラメータに基づいて、挿入部の先端と被写体との被写体距離を算出する被写体距離算出部954と、被写体距離に関する距離情報を報知する距離情報報知部200とを備える。【選択図】図2
