OZF2 The OZF2 format stores the image in tiles, each tile is 64x64 Bytes, each tile can be manipulated as a single unit. Because of this layout zoom levels below 100% cannot be created "on the fly" in real time. To overcome this the zoom levels are created when the image is saved and all the selected zoom levels are stored in the same file. Contains a separate image for each zoom level which produces images almost as good as the original for each zoom level