To really take creative control with your Nikon D7100 digital camera, step up to one of these exposure modes, which enable you to adjust aperture (f-stop) to manipulate depth of field and to adjust shutter speed to determine whether moving objects appear sharply focused or blurry. You also gain access to some features not available in the fully automatic modes, such as the option to adjust flash power and tweak white balance.
| Symbol | Exposure Mode | Description |
|---|---|---|
| P | Programmed Autoexposure | The camera selects both the f-stop and shutter speed to ensure proper exposure, but you can choose from multiple combinations of the two settings. |
| A | Aperture-priority Autoexposure | You set aperture by rotating the Sub-command dial; the camera selects the shutter speed needed to produce a good exposure at that aperture. |
| S | Shutter-priority Autoexposure | You set the shutter speed by rotating the Main command dial; the camera selects the f-stop that will produce a good exposure at your chosen shutter speed. |
| M | Manual Exposure | You control both the shutter speed and f-stop; rotate the Main command dial to set shutter speed, and use the Sub-command dial to set the f-stop. |
| U1 and U2 | User Modes | Create custom exposure modes through the Setup menu. |
