My Pentax SPII shoots blank images
You can check the shutter without film in the camera. Remove the lens and open the film door. You will see the cloth curtains of the shutter in the center. Advance the film lever to **** the shutter and set the speed dial to a slower speed like 1/15. Hold the camera so it is aimed a a light source, (a window will do) and fire the shutter. You should see the light through the shutter for the time duration is is set to. (1/15). If you see the light source, repeat the process going up one speed setting until you reach 1/1000. If you see the shutter open and close as described, then try another roll. After you load the film and close the back door, make note of what the rewind knob is doing as you advance the film. It should spin counter-clockwise each time. That is a easy test to know that the film is traveling in the camera properly. Vary your exposures with the new roll at different speeds and f-stops. You should get exposures, but if not let us know.