Full-time Live View and Contrast AF
With the G1 users enjoy the advantages of Full-time Live View not only when viewing the LCD, but when using the electronic viewfinder too. The G1's viewfinder system retains the outstanding viewability of an optical viewfinder and can also display information about camera settings that the user can see without taking his or her eye from the subject. This is one of the ways Full-time Live View uses digital technology to give the photographer useful new features and functions. In addition to a mirror-less structure, the G1 features a high-resolution 1,440,000-dot equivalent Live View Finder.
Both the Live View Finder and LCD provide a 100 percent field of view. This allows the user, when composing a shot, to check the framing accurately from corner to corner.
The G1 introduces a new Contrast AF function that is not only accurate and easy to use, but also very fast. Users can choose from a wide range of AF modes, including multiple-area AF with up to 23 focus areas, 1-area AF with a selectable focus area, Face Detection, and AF Tracking. In the 1-area AF mode, the AF frame size can be changed by simply turning a dial. The G1 also has a Quick AF function that begins focusing as soon as the user aims the camera--no waiting for him or her to press the shutter button halfway. This provides a quicker focusing that can help capture the subject before the crucial moment passes. Continuous AF keeps the subject in focus at all times. With the G1's many auto focus modes, there's an option that's just right for any shooting situation.