Nikon Corporation is pleased to announce the introduction of the TC-E3PF - an advanced new 3x telephoto converter born of unique Nikon technology for use with the new 8-megapixel Coolpix 8400. Smaller and lighter, the TC-E3PF illustrates how Nikon is taking existing lenses and redesigning them for "on-the-go" convenience. Furthermore, the widely acclaimed TC-E3ED is also compatible with the Coolpix 8400. In conventional telephoto converters, a lens with a pronounced convex shape is used to refract the light received through the first element to a greater degree. This results in the desired reproduction ratio, however chromatic aberration can occur. In the event that a convex ED lens is used, such chromatic aberration is corrected, however the refractive limitations of such a lens make it difficult to reduce overall dimensions.