Intelligent Program AE Choose the 'P' mode for Intelligent Program AE. The camera will set both the shutter speed and aperture for the exposure. But you still retain control. Turning the main dial will alter the shutter speed/aperture combination but the exposure value stays the same. You can select the best possible combination to suit your subject. Intelligent Program AE and Evaluative metering P mode with Center-weighted metering P mode with Partial metering P mode with Evaluative metering You can use the P mode with any EF lens or the metering patterns of the EOS 50 and it will select the appropriate combination for the best results. For the first photo, I simply zoomed in the lens to the 200mm focal length and memorized the reading with AE Lock, set it back to 70mm, recomposed and clicked the shutter. The Center-weighted meter was able to cope with this still-life subject for the second photo while Partial metering was used for the third shot, with the reading based from the 'Danger' sign on the right side. Evaluative metering made the available light shot an easy task. << Back to Main . 1 . 2 . 3 . 4 . 5 . 6 . 7 . 8 . 9 .