Nikon Announces AF-S VR NIKKOR 200mm f/2G IF-ED Lens
Nikon has announced the AF-S VR Nikkor 200mm f/2G IF-ED lens, developed for use with both Nikon digital and film SLR cameras. The AF-S VR Nikkor 200mm f/2G IF-ED is crafted from Super ED glass - a significant new material that is said to be more resilient than typical fluorite lenses and offers class-above optical qualities with exceptional consistency even at large apertures. While the optical properties of this new glass closely resemble those of fluorite, Super ED glass is more resilient to rapid temperature changes (thermal shock) and not as susceptible to cracking as the crystal structure of fluorite. Super ED glass also boasts a higher refractive index than fluorite, making it highly capable of correcting aberrations other than chromatic aberration. The lens incorporates new features, including a switch located on the bottom of the lens that gives fast access to the AF-L (Autofocus-Lock) function, which allows a desired focus position to be easily preset. The same switch can also be used to access the AF-ON function enabling photographers to achieve more subjective focus with fine manual manipulation. The switch can also activate the lens to revert back to the preset focus position whenever desired.
Nikon's advanced VR technology helps eliminates image blur caused by camera shake, particularly when shooting in low-light conditions, allowing photographers to use shutter speeds up to three stops slower than they would ordinarily. VR performance is further augmented in the AF-S VR Nikkor 200mm f/2G IF-ED by a VR selection switch that enables photographers to choose between two different VR modes to best suit the subject at hand - Normal mode is ideal for most common shooting conditions, panning, and use in combination with a tripod. Active mode, as its name suggests, is better suited to conditions involving more movement, such as shooting from a moving vehicle or platform.
The AF-S VR Nikkor 200mm f/2G IF-ED will be available at Nikon authorized dealers starting Fall of 2004.