What is Focus modes of Digital SLRs

Another major area of difference between a compact digicam and a digital SLR is in the ability to select focus modes. Whereas a compact camera focuses on a subject and then captures the image, a dSLR can easily shoot in Continuous Focus mode, tracking a moving subject and keeping it in focus until, and even after, you press the shutter button. So, there are two types of Focus mode.

1. Continuous Focus
2. Single Shot Focus

Continuous Focus:

Continuous Focus is designed for sports and wildlife photography where the subject is moving and the photographer is panning the camera along with the subject prior to capturing the image. This mode works on most cameras by pressing the shutter button halfway to activate the metering and focus tracking. When you're ready to capture the image, press the shutter the rest of the way down.

Single Shot Focus:

Single Shot Focus mode locks onto a focus point as the shutter button is pressed and then stays there. Single Shot Focus mode doesn't release the shutter until the camera has focused on the subject. As long as the shutter remains pressed halfway, and the subject hasn't moved, it will remain in focus.