Originally Posted by
rpcrowe
I can do many things with the P mode using my xxD and xD Canon DSLR cameras that I couldn't do with the full auto mode.
Note: I have never concerned myself with the morphodite "Creative Auto" mode available in some Canon cameras.
This is what I can do in P mode and cannot do in full auto mode. This is true of all the xxD and xD cameras I have owned: D60, 10D, 30D, 40D, 7D and 5DII. My one fling into the Rebel Canon line, the 350D, was a very short and unhappy relationship - mainly due to the lack of the two dial system...
1. I can shoot in RAW (which I ALWAYS do)
2. I can select my ISO
3. I can run the gamut of shutter speed/Aperture combinations using the main dial
4. I can adjust the exposure + or - EV with the quick control dial
NOTE: The availability of these two dials with which I can make major exposure adjustments or focus selections using my shooting finger or thumb of my shooting hand is one of the greatest advantages of the xD and xxD Canon cameras over the Canon Rebel line as well as many other brands of cameras.
5. By pressing the ISO button (next to the shutter release) I can adjust the ISO (through the entire range of ISO capabilty - including Auto ISO) using the main dial, also without taking the eye from the viewfinder.
6. I can choose my drive mode by pressing the AF/Drive button (second from the right atop the camera) and rotating the Quick Control Dial.
This might be the time to explain the use of the Canon dual purpose buttons on the applicable cameras. When a button is marked with two functions, like "AF-Drive"; the main control dial (atop the camera) controls the first listed function (in this case AF) and the rear quick control dial controls the second listed function (in this case Drive). I can easily rotate the main dial with the index finger of my right hand and rotate the Quick Control Dial (which I prefer to call the "Secondary Dial") with my right thumb.
7. I can choose my focus point by pressing the AF button with my shooting thumb and using the quick select button.
8. I can select my Auto focus mode (one shot - AI Focus - AI Servo) by pressing the AF button
9. By pressing the ISO/Flash compensation button, I can select flash compensation using my right thumb
10. I can use AEB (Auto Exposure Bracketing)
The above selections are all visible in the viewfinder...
In light of the above, IMO, anyone who states that "P" mode is basically the same as "full auto" mode, has never used the P mode to its fullest capacity.
I can do virtually all my camera controlling with a combination of right index finger and right thumb with the camera up to my eye. It is a fast and convenient way of shooting.
BY the way... The two dial system works in other shooting modes. As an example, in Manual exposure mode, the main dial controls the shutter speed while the secondary dial controls the f/stop...
This is handy when using fill flash outdoors in Manual - Aperture Priority - Shutter speed priority and Programmed modes. The shutter speed will determine the ambient light exposure while the f/stop controls the flash exposure. You can control these two functions individually using the two dial system.
There is also a joystick with which to adjust controls but, I seldom use that while the camera is up to my eye...
Note: I need to look at the mode dial when shifting modes. This is not a function I wish to do with the camera up to my eye...