Its highly corrected optical system was specially formulated to tame coma aberration, a common abberation once considered inevitable in wideangle lenses of retrofocus design. Its optical behavor makes this lens particular suited for scenic, architectural, and interior photography. Although this lens has not been equipped with an CRC system for optimizing its close focusing performance, but this 20mm lens can also a superb lens for closeups. When used it in conjunction with bellows and BR-2/3 reverse adpter ring, it is possible to reach an astonishing magnification up to 12X with this tiny sized Nikkor ultrawide.
The Nikon NIKKOR 28mm f/2.8 Lens offers superior sharpness with quality construction throughout, in a compact package. This FX-format lens features a fast f/2.8 maximum aperture and Close-Range-Correction (CRC) which maintains image quality throughout the focusing range down to its minimum focusing distance of 8.3". The manual focus lens also utilizes Super Integrated Coatings for minimizing ghosting and flare. Additionally, when used on DX-format camera bodies it has a 42mm equivalent focal length. A physical aperture control ring is available for making adjustments by hand and it accepts 52mm threaded filter. Also, it has a 7-blade diaphragm for smooth out-of-focus areas.
The Nikon Micro-NIKKOR 55mm f/2.8 Lens is an exceptionally versatile manual focus lens. Its f/2.8 maximum aperture is fast enough to make it useful as a general photography normal lens and it has a physical aperture control ring for users who prefer it. That same maximum aperture also improves the user's ability to focus when doing macro applications. It produces an exceptionally sharp and clean looking image, at all apertures, from f/2.8 to f/32.
This lens focuses to a ratio of 1:2 in standard form. This means the lens can represent an item on the film at exactly 1/2 its actual size. It is possible to increase this to 1:1 (life-size) with the optional PK-13 extension tube.
This is a well-made, lightweight lens that produces professional quality images. It accepts 52mm filters and Nikon's HN-3 lens hood. The hood is only necessary when using filters because the front element is deeply recessed and quite shaded as is.