Nikon AF 28mm Lens F2.8d
Released back in 1994 the Nikkor AF 28mm f/2.8D is one of the older AF lenses in Nikon's lens lineup. On classic full frame SLRs it is a wide- to ultra-wide-angle lens whereas its field-of-view is equivalent to 42mm on today's Nikon APS-C DSLRs so it almost behaves like a standard lens in this scope.
The mechanical design of the lens is fairly similar to its cousin, the AF 24mm f/2.8D, so the build quality is pretty good with an outer barrel made of polycarbonate combined with a metal mount. The small rubberized focus ring operates very smooth. Typical for lenses with a linear extension system the whole inner tube moves during focusing thus extending the lens (marginally) when focusing towards closer focus distances. The lens has no internal AF motor and relies on a slotted drive screw operated by the camera. As a result AF operation will generate a moderate degree of noise. Due to the very low weight of the optical system the AF speed is very fast on the D200. The front element does not rotate so using a polarizer is no problem.
|Optical construction||6 elements in 6 groups|
|Number of aperture blades||7|
|min. focus distance||0.25m (max. magnification ratio 1:5.6)|
|Filter size||52mm (non-rotating)|
|Hood||Nikon HN-2 (optional), barrel shaped (screw-in)|
|Other features||Lens provides distance (D) information to the camera.|