this is a partial extract from http://www.bythom.com/nikkordb.htm

the info provided by Thom at: http://www.bythom.com/nikkordb.htm is superb.
I extracted part of the micro lense detail for my own analysis...
see his page for full details and working links.

Nikkor Autofocus Lenses

Last update: 4/26/2011 - COPIED 4/27/2012
Lens designations followed by an * indicate lenses no longer in production.

New Lens announced in April 2011:

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Focal Length
Max F/stop
Filter Size
Close Focus
Magnification
Comments
AF Micro 105mm D* Discontinued - currently own this one 2.8 52mm

1' (30cm)

working distance: 136mm

1:1 maximum reproduction ratio.

HS-7 hood. 1:1 macro reproduction at full extension. CRC correction. 9/8 element design. Focus limit switch. Minimum f/32 aperture. 19.6 ounces.
AF Micro 70-180mm D ED* Discontinued - this is one I'd consider 4.5-5.6 62mm

1.25' (0.37m)

working distance: 112.4mm

1:1 maximum reproduction ratio.

HB-14 hood (provided). 18/14 element design. The zoom makes it easy to get exactly the framing you want when working close. 34.9 ounces.
AF Micro 200mm D ED-IF - this is one I'd consider 4 62mm

20" (0.5m)

working distance: 10.2" (260mm)

1:1 maximum reproduction ratio.

HN-30 hood. 1:1 macro reproduction at full extension. 13/8 element design. CRC Correction. Automatic/Manual focus switch. Tripod collar. 42.3 ounces.
AF 105mm AF-S G IF-ED VR Micro-Nikkor - this is one I'd consider f/2.8 62mm

1 ft (31cm)

1:1 maximum reproduction ratio.

14 elements in 12 groups. 1 ED and 1 nano crystal coated element. 9-blade aperture diaphragm. 154mm working distance. 1:1 maximum reproduction ratio. HB-38 hood included. 25.4 ounces (720g).
AF Micro 60mm D Discontinued - this was the first Micro lens I owned 2.8 62mm

8.75" (22cm)

working distance: 90.4mm

1:1 maximum reproduction ratio.

HN-22 hood. 1:1 macro reproduction at full extension. 8/7 element design. CRC correction. Automatic/Manual focus switch. Focus limit switch. Minimum f/32 aperture. A superb lens at close distances, a respectable lens at infinity focus (soft edges). 16 ounces.
AF 45mm ED Micro-Nikkor PC-E f/2.8 77mm

11" (0.253m)

1:2 maximum reproduction ratio.

9 elements in 8 groups. 1 ED element. 9-blade aperture diaphragm. Tilt 8.5 degrees, shift 11.5mm, may be limited on cameras other than the D3. 1:2 maximum reproduction ratio. HB-43 hood included. Dust and moisture sealing. Nano coating. 26 ounces (740g).
AF 85mm Micro-Nikkor PC-E f/2.8 77mm 1.3' (.39m)

1:2 maximum reproduction ratio.

6 elements in 5 groups. 9-blade aperture diaphragm. Tilt 8.5 degrees, shift 11.5mm, may be limited on cameras other than the D3. 1:2 maximum reproduction ratio. HB-22 hood included. Dust and moisture sealing. Nano coating. 22 ounces (635g).
AF 60mm AF-S G ED Micro-Nikkor f/2.8 62mm

7.25" (185mm)

1:1 maximum reproduction ratio.

12 elements in 9 groups. 1 ED element, 2 aspherical elements. 9-blade aperture diaphragm. Internal focusing. 1:1 maximum reproduction ratio. HB-42 hood included. Nano coating. 15 ounces (425g).
AF 24mm ED Micro-Nikkor PC-E f/3.5 77mm

8.25" (0.21m)

1:2.7 maximum reproduction ratio.

13 elements in 10 groups. 3 ED elements, 3 aspherical elements. 9-blade aperture diaphragm. Tilt 8.5 degrees, shift 11.5mm, may be limited on cameras other than the D3. 1:2.7 maximum reproduction ratio. HB-41 hood included. Dust and moisture sealing. Nano coating. 26 ounces (730g).
AF 85mm AF-S G DX VR ED Micro-Nikkor f/3.5 52mm

11" (.286m)

1:1 maximum reproduction ratio.

14 elements in 10 groups, one ED element. 9-blade rounded aperture diaphragm. 1:1 maximum reproduction ratio. Non-rotating front element. M/A and M switches. HB-37 hood (included). 12.5 ounces (335g).

"MF" = manual focus; "AF" = autofocus; "IF" = internal focus; "ED" = at least one ED element (low dispersion); "AF-S" = silent motor

Max F/stop = widest available f/stop; variable number indicates maximum f/stop changes with focal length.

Filter Size =  number is filter thread size.

Close Focus = first number is in feet; number in parentheses is metric (the convention used throughout Nikon Field Guide).


formula for magnification? - not right...
M = FX / D M = Maximum possible magnification
F = Lens focal length, in mm (105)
X = Camera crop factor (FX = 1)
D = Shortest focusing distance of the lens, in mm (.03)


see: http://www.peterforsell.com/macro.html