I am having some troubles with my Nikon F4. I am having problems with my images being underexposed. When shooting manual I set my aperture ring to where I want it and then I adjust my settings (shutter speed and exposure) according to the exposure meter that you see in the camera. Somehow my images area coming out underexposed and quite grainy. I tried using the autoexposure setting which I believe to get the camera to adjust your settings according to the aperture set is "A" but my images were coming out underexposed as well. If someone could give me a more thorough explanation of how to get a correct exposure and how to use the autoexposure settings and manual settings that would be great. I have tried looking at the manual but I am so confused and getting nowhere. I am pairing my camera with an ai lens so it is not an autofocus lens and that could possibly contributing to the issue.