An image sensing apparatus has a calculating unit adapted to calculate number of images that can be captured when image data representing captured images is recorded on first and second recording media. The calculating unit calculates number of images that can be captured in accordance with available capacity of the first recording medium and shooting conditions in a case where available capacity of the first recording medium is less than available capacity of the second recording medium, and calculates number of images that can be captured in accordance with available capacity of the second recording medium and shooting conditions in a case where available capacity of the second recording medium is less than available capacity of the first recording medium.