| 摘要 |
PROBLEM TO BE SOLVED: To provide an imaging apparatus which enable a higher quality moving image to be recorded in a case that a frame rate is changed in imaging the moving image.SOLUTION: In an imaging apparatus, when imaging a moving image, a state of driving an imaging device at a high-speed imaging frame rate (120 fps) is kept. In a period where the moving image is recorded at a recording frame rate being the same as the imaging frame rate, an image of each frame imaged by setting ISO sensitivity to a predetermined value (800) is recorded as it is. In a period where the moving image is recorded at a recording frame rate (60 fps, 30 fps) lower than the imaging frame rate, the ISO sensitivity is set to a smaller value (400, 200), and the imaged images are composed as many frames as the number of frames determined according to a ratio between the imaging frame rate and the recording frame rate, then the images after the composition are recorded. Thus, it is possible to reduce an image noise in each frame recorded as the moving image, and to maintain constant brightness of the images before and after the change in the recording frame rate. |
