An imaging apparatus comprising: a setting processor configured to set a tracking image area, wherein the tracking image area is an image area including a tracking object image (O') set with respect to a specific monitoring frame image (F 0) obtained at a certain time interval via a photographing optical system and consecutively displayed on a monitor screen for monitoring by a user; a searching processor configured to respectively set a scanning area (Q") to compare with the tracking image area for a plurality of monitoring frame images (F 1 -F N) following the monitoring frame image (Fo) used to set the tracking image area, and respectively move the scanning area (Q") on each corresponding frame image of the plurality of monitoring frame images (F 1 -F N), and make a comparison of a characteristic amount of an image between the tracking image area and the scanning area (Q"), so that the searching processor respectively obtains a scanning area (Q") where the characteristic amount of the image is similar to the image in the tracking image area as a tracking object existing area (Q') including the tracking object image (O'), with respect to the plurality of monitoring frame images (F 1 -F N); a measuring processor configured to divide a difference between a coordinate of the tracking object existing area (Q') obtained with respect to one frame image of the plurality of monitoring frame images (F 1 -F N) and that obtained with respect to a next frame image to the one frame image by the certain time interval, so that the measuring processor measures the moving speed of the tracking object image (O') on the monitor screen; a displaying processor configured to display a speed display mark corresponding to the moving speed of the tracking object image (O') on the monitor screen; characterised by an auto-shooting processor configured to automatically execute photographing to obtain a plurality of pan-blur shot images, while changing the exposure time, when a moving speed of the tracking object image (O') on the monitor screen is less than or equal to a predetermined threshold value. a setting processor configured to set a tracking image area, wherein the tracking image area is an image area including a tracking object image (O') set with respect to a specific monitoring frame image (F 0) obtained at a certain time interval via a photographing optical system and consecutively displayed on a monitor screen for monitoring by a user; a searching processor configured to respectively set a scanning area (Q") to compare with the tracking image area for a plurality of monitoring frame images (F 1 -F N) following the monitoring frame image (Fo) used to set the tracking image area, and respectively move the scanning area (Q") on each corresponding frame image of the plurality of monitoring frame images (F 1 -F N), and make a comparison of a characteristic amount of an image between the tracking image area and the scanning area (Q"), so that the searching processor respectively obtains a scanning area (Q") where the characteristic amount of the image is similar to the image in the tracking image area as a tracking object existing area (Q') including the tracking object image (O'), with respect to the plurality of monitoring frame images (F 1 -F N); a measuring processor configured to divide a difference between a coordinate of the tracking object existing area (Q') obtained with respect to one frame image of the plurality of monitoring frame images (F 1 -F N) and that obtained with respect to a next frame image to the one frame image by the certain time interval, so that the measuring processor measures the moving speed of the tracking object image (O') on the monitor screen; a displaying processor configured to display a speed display mark corresponding to the moving speed of the tracking object image (O') on the monitor screen;