08-05-2010, 01:05 PM
aperture 3.5 is only available at 18mm focal length (maybe until 20mm) the further you zoom in, the smaller the maximum available aperture gets. at 55mm you can select f/5.6 at the widest. (you know that large apertures carry small numbers e.g.: f/1.4, F/2.8, f/3.5 etc while small apertures carry large numbers, f/5.6, f/8, f/11 etc?)