The 55mm f/2.8 Micro-Nikkor is an exceptionally versatile lens. Its f/2.8 maximum aperture is fast enough to make it useful as a general photography normal lens. 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. Greater magnifications are possible by using the 55mm f/2.8 Micro-Nikkor on a bellows focusing assembly. 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. Multi-useful normal focal length lens Exceptional image quality at all apertures Exceptional image quality at all distances thanks to Nikon's Close-Range-Correction (CRC - or floating element) system 

Name	Nikon 55mm ƒ/2.8 AIS Micro-Nikkor
Image Circle	35mm (FX)
Type	Standard Macro Prime
Focal Length	55mm
APS Equivalent	82.5mm
Max Aperture	ƒ/2.8
Min Aperture	ƒ/32
Diaphragm Blades	7
Lens Construction	6 elements in 5 groups
Diagonal Angle of View(Based on image circle)	43 degrees
Focus Details	Manual Focus Only; Close Range Correction
Front Element Rotation	YES
Zoom System	n/a
Closest Focus	0.25m / 0.9 ft.
Magnification Ratio	0.5x / 1:2
Filter Size	52mm
Dimensions(Length x Diameter)	60.9mm x 63.5mm / 2.4 in. x 2.5 in.
Weight	286g / 10.2 oz
Notes	Classic Nikon F Mount; AIS / AI / NAI Metering Compatibility; Includes front and rear lens caps.

• 52mm Front Cap
• Rear Cap
• Soft Lens Case
• Brand New Factory Fresh Import Model