In the EOS System, Canon pioneered a revolutionary new style for selecting the aperture when the EOS camera is used in the manual exposure mode. First available from the original EOS-1 pro camera, this new style is available through the use of the Quick Control Dial. The Quick Control Dial of the Canon EOS-1N RS The LCD Display during Manual exposure mode Since then, most of the amateur level Canon EOS SLR cameras like the EOS 100, EOS 50/50E, EOS 5 as well as the semi-pro EOS-3's and EOS-1's two successor models, the EOS-1N and EOS-1N RS, have incorporated the Quick Control Dial for fast, precise and reliable manual exposure controls. Apart from using the Quick Control Dial to set the aperture during Manual exposure mode, it can also be used to set exposure compensation in any of the AE shooting modes. With Custom Function CF-5 (selected EOS models), the Quick Control Dial can be altered to set the shutter speed in the manual exposure mode. The aperture control will be shifted to the Main Dial then. Oh yes, I have personally found another way where the Quick Control Dial can be used, as seen in the third photo shown above: displaying the photo of a loved one on it. It's far more effective than having an ID size photo in the wallet. Now the question is: Should you use manual exposure with your Canon EOS cameras giving that the technologies available in them are more than enough to guarantee perfect exposures most of the time? Why not? While I don't deny that using any of the EOS camera in its AE shooting modes are far more convenient than relying on total manual exposure control, the experience of shooting your pictures this way can also be satisfying, especially for the perfectionists among you.   << Back to Main . 1 . 2 . 3 . 4 . 5 . 6 . 7 . 8 .