PRODUCT DESCRIPTION 
- Optics
11 elements in 10 groups.
Nikon calls the floating element system "CRC," for close-range correction. This lens optimizes its design for perfect performance as you focus at any distance.
It's multicoated, which Nikon calls Nikon Super Integrated Coating.
- Close Focus
1 foot (0.3m).
 
- Maximum Reproduction Ratio
1:8.6.
 
- Hard Infinity Focus Stop?
Yes.
This is great for astronomy; just turn to the stop and you have fixed laboratory-perfect focus all night.
- Focus Scale
Yes.
- Depth-of-Field Scale
Yes.
- Infra-Red Focus Index
Yes: red dot near depth-of-field scale.
 
- Diaphragm
7 straight blades.
Stops down to f/22.
- Aperture Ring
Yes, full-stop clicks.
 
- Filter Thread
52mm, metal.
Does not rotate.
Product ($649)
SN: **3179 
Condition: Like New
Warranty: 2 weeks shop warranty, covering manufactural defects 
What You Will Get 
- Front Cap
- Rear Cap
Product ($699)
SN: **0865
Condition: Like New
Warranty: 2 weeks shop warranty, covering manufactural defects 
What You Will Get 
- Front Cap
- Rear Cap