In P mode you can change your settings including exposure to what you like, but the camera will set Aperture and Shutter automatically for you. In the P program Mode, there is a feature called Program Shift.
When the main dial or sub dial is rotated to the left or right, the P changes to Ps, for Program Shift Please note: on most PEN cameras, it is necessary to first press the exposure button, then rotate the dial to enter Ps mode.
Depth-of-field is very important in landscape photography. Usually you will want the entire contents of the frame to be in focus, and the best way to do this is to set a small aperture such as f16 , a low ISO for high image quality. If this results in a shutter speed that is too low to hand-hold the camera without camera shake, I either raise the ISO to get a faster shutter speed or use a tripod.
There are a couple of reasons why you would want to use aperture priority instead of landscape mode:. I also use aperture priority for taking portraits. This is a favourite technique of mine with prime lenses which have a wider maximum aperture than zooms.
I set an aperture somewhere between f1. I took this close-up photo of a flower with an 85mm lens. I often raise the shutter speed when shooting close-ups as any movement caused by camera shake as magnified. In shutter priority mode, you select the shutter speed and your camera sets the aperture according to the ISO. You can control the aperture indirectly by changing the ISO.
It lets me set a shutter speed fast enough to prevent camera shake, and I if I need more depth-of-field I simply increase the ISO. Shutter priority also comes in useful when you want to blur motion. If it is still at the incorrect exposure level, go into manual mode to take full control. If your images keep coming out with the wrong exposure because of changing light conditions, switch from manual to shutter or aperture priority.
If the image appears blurred and you do not want it to be, choose shutter priority. You can recreate the same settings and then push them up or down as required to get that perfect exposure. When you are choosing your mode, think about the following: Do you need your depth of field to cover a certain range?
Will a slower or faster shutter speed ruin the look of the image? Can you allow more grain into the shot if you need more light?
Will you be able to adapt to the situation quickly enough to change the settings manually? Do you need creative control to be able to alter the settings beyond what the automatic suggestions will be?
Self-Check Quiz: What does aperture priority mode control? Why might you need to limit your depth of field? How does shutter priority mode affect your settings? Why might you need to set your shutter speed to a specific value? Should all photographers learn to use manual mode?
What scenarios will always require manual settings? How can you decide which mode to use? Assignment: Choose a subject — any subject at all. Share with your friends:. Share on facebook. Share on pinterest. Share on twitter. Share on whatsapp. Share on email. Posted in:. It is a good halfway point between automatic and manual.
This function allows you to set the aperture on your camera; the camera chooses the shutter speed for you. The aperture controls depth of field the area in front and behind the main subject that will be in focus. When you set a wide aperture, you reduce the depth of field; when you choose a smaller aperture, you will have a greater depth of field.
Obviously when you change the aperture, you change the level of light in your exposure. The camera will compensate by adjusting the shutter speed. So when you operate your camera in Aperture Priority mode, you have control over the depth of field, but your camera still makes sure your exposure is correct.
The catch here is, you still need to keep track of what your shutter speed is doing. If it falls to a very slow speed, you need to use a tripod to eliminate camera vibrations. How about Shutter Priority? Here you set the shutter speed, and the camera balances the exposure by setting the aperture. This is a great system if you are working with moving subjects. Sometimes you may want to freeze a moving subject with a fast shutter speed, or create a motion effect with a slower shutter speed.
Meanwhile the camera compensates for the changes in shutter speed by adjusting the aperture. Shutter priority may be a better option for some beginners. It is much easier to stay aware of when to use your tripod. Also, when your camera manages the aperture, it controls the depth of field, which is not usually as critical as the shutter speed.
These two semi-automatic functions appear to offer you the best of both worlds. So far, it sounds perfect. Unfortunately, that is not always true. In fact, sometimes you have to be smarter than your camera. Imagine you are photographing a flower in the sun, but the background is in the shade. This simple situation can be all it takes to confuse your camera. It may expose for the background, brightening the exposure and totally overexposing the flower. In this situation, semi-automatic settings will not solve the problem.
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