Here are facts about all these camera modes from the link. First is automatic mode. Automatic mode tells your camera to use it’s best judgement to select shutter speed, aperture, ISO, white balance, focus and flash to take the best shot that it can. This results in the camera guessing what kind of pictures you want to take. Portrait mode automatically sets to a larger aperture. This will help your background stay out of focus. Next is Macro mode. Macro mode lets you move your closer into your subject to take a close up picture. Its great for flowers and smaller objects like insects. Next up is landscape mode. This mode is almost the exact opposite of portrait mode in that it sets the camera up with a small aperture. It will help everything stay in focus. This will give you a large depth of field. Sports mode is used for moving objects. Sports mode attempts to freeze the action by increasing the shutter speed. Night mode is used for shooting in low light situations when photographing . This will also help in shooting during the night. Next one is movie mode, this mode extends your digital camera from just capturing still images to capturing moving ones. These moving images also take up a lot of space in the camera. Aperture priority mode is really a semi-automatic (or semi-manual) mode where you choose the aperture and where your camera chooses the other settings. Shutter priority mode is where you select a shutter speed and the camera then chooses all of the other settings. You would use this mode for speed. Program mode is similar to Auto but gives you a little more control over some other features including flash. Manual mode mode you have full control over your camera and need to think about all settings including shutter speed, aperture and ISO. It gives you the flexibility to set your shots up the way you want.