In doing some experimentation with aperture settings and shutter speeds, it looks to me like there are some gaps in the possible settings. In particular, the settings shown in the viewfinder seems to mostly go by 1/3 stop increments. However, in some cases the numbers are closer to 1/2 stop increments, and in some cases there are "missing" increments. Does anyone know what settings are allowed in canon Rebel 2000, and/or Ti, and/or T2 cameras? I once saw a comment somewhere that the camera uses 1/6 stop increments internally, but the viewfinder results are as described above, and also some film testing experiments I have done are consistent with the "missing increments" hypothesis.