First Look of Nikon D300
The Nikon D300 offers three focus modes selected by using the C,S,M switch located on the front of the camera under the lens release button.
Manual (M) Allows the user to manually focus the lens.
Single AF (S) In this mode, the camera focuses when the shutter-release button is pressed halfway. Focus locks when the focus indicator appears in the viewfinder, and remains locked while the shutter-release button is pressed halfway (focus lock). This mode is best for still subjects such as landscapes.
Continuous-servo AF (C) The camera focuses continuously while the shutter-release button is pressed halfway. This mode is best for moving subjects such as with photos of sporting events. If the subject moves while the shutter-release button is pressed halfway, focus will be adjusted to compensate with predictive focus tracking.
The Nikon D300 digital camera incorporates Nikon’s new Multi-CAM3500DX AF sensor module offering improved subject acquisition and tracking performance by working in collaboration with the camera’s scene recognition system.
Primary features of the Multi-CAM3500DX AF sensor include:
1) Subject identification information and subject tracking information acquired from the new scene recognition system allows for improved subject acquisition performance by using color and light information from the D300’s 1005-segment RGB sensor to accurately track the subject.
2) In Dynamic AF area mode you can select to use 51, 21, or 9 focus points.
3) Contrast-detect AF is possible in live view mode (“Tripod” mode).
4) Offers 51 densely packed AF points in roughly the same area containing 11 focus points on the Nikon D200.
5) New 3D-tracking function, which automatically switches the active focus point to follow subject movement and maintain focus on the primary subject. (Action and sports)
6) 15 of the D300’s AF points operate as crosstype sensors when lenses with a maximum aperture of f/5.6 or faster are used.
You can manually select one of the 51 focus points and the camera will focus on the subject in the selected focus point only. The selected focus point is illuminated in the viewfinder display. When spot metering is used, metering is performed in the selected focus point.
You can manually select one of 51 focus points, although the camera will employ information from multiple focus points to determine focus. Select from 9-, 21-, 51-point, or 51-point with 3D tracking autofocus, depending upon the subject.
Relative links about Nikon D300
Nikon New Introduce D300 Digital Camera