In the tomographic imaging apparatus of the present invention, the light from the light source 11 is divided into measurement light and reference light so as to be incident on the target object E and the reference object 49, and reflected by the measurement light reflected by the target object E and the reference object 49. The tomographic imaging apparatus captures a tomographic image of the target object E based on the interference light generated by superimposing the generated reference light. The measurement light is two-dimensionally scanned and incident on the target object E. And a second imaging mode in which the tomographic image of the target object E is captured by two-dimensional scanning of the measurement light and entering the target object E. The time required for the two-dimensional scanning in the second imaging mode is shorter than the time required for the two-dimensional scanning in the first imaging mode, and based on the tomographic image captured in the second imaging mode, the tomographic image is captured in the first imaging mode. After adjusting the imaging conditions necessary to perform the tomography, the tomographic image is captured in the first imaging mode.本発明の断層像撮影装置は、光源１１からの光を測定光と参照光に分割して対象物体Ｅと参照物体４９に入射させ、対象物体Ｅで反射された測定光と参照物体４９で反射された参照光を重畳させて生成される干渉光に基づき対象物体Ｅの断層像を撮影する断層像撮影装置であって、測定光を二次元走査して対象物体Ｅに入射させ、対象物体Ｅの断層像を撮影する第１撮影モードと、測定光二次元走査して対象物体Ｅに入射させ、対象物体Ｅの断層像を撮影する第２撮影モードとを備える。第２撮影モードにおける二次元走査に要する時間は第１撮影モードにおける二次元走査に要する時間よりも短く、第２撮影モードで撮影された断層像に基づいて、第１撮影モードで断層像の撮影をするために必要な撮影条件の調整を行った後、第１撮影モードで断層像の撮影が行われる。
