Nikon D5 100th Anniversary Edition User Manual - Page 94

A Image Area At frame sizes of 1920 × 1080 and 1280 × 720, you can choose an image area using the Image area > Choose image area option in the movie shooting menu. Select FX to shoot movies in what is referred to as "FXbased movie format", DX to shoot in "DX-based movie format". The differences between the two are illustrated below. FX (36×24) DX (24×16) The sizes of the areas recorded are approximately 35.9 × 20.2 mm (FXbased movie format) and 23.5 × 13.2 mm (DX-based movie format). y Movies shot with a DX-format lens and On is selected for Image area > Auto DX crop (0 88) in the movie shooting menu are recorded in DXbased movie format. Enabling electronic vibration reduction (0 64) reduces the size of the crop, slightly increasing the apparent focal length. At frame sizes of 3840 × 2160 and 1920 × 1080 crop, image-area selection is not available and image area remains the same regardless of the type of lens used. 70