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Here is the list of AF-D lenses still shown on the Nikon homepage:
Nikon still sells some AF-D lenses new. Not sure when those were manufactured if they are selling old stock or not.
The DC lenses (105 and 135mm f2 AF-D DC)
AF 60mm f2,8D micro Nikkor
AF 200mm f4D micro Nikkor
The 16mm f2,8 AF-D fisheye,
14mm f2,8 AF-D,
20mm f2,8 AF-D,
28mm f2,8 AF-D,
35mm f2 AF-D,
50mm f1,8 AF-D,
50mm f1,4 AF-D,
85mm f1,8 AF-D,
180mm f2,8 AF-D
17-35 f2,8 AF-D and
80-400 f4,5-5,6 AF-D zoom lenses.
I'm not sure whether pre-Ai lenses require a thread of their own or not. I own a few of them. Scalloped lenses from the 70's. After these Nikon updated a few lenses to designs 100% identical to the later Ai lenses in optics as well as exterior design, but with a non-Ai aperture ring. These lenses from the late 70's and early 80's are often referred to as K lenses. When Ai came along Nikon only changed the aperture ring design on a lot of those. With Ai kits available for all the non-Ai Nikkors, and Nikon offering to upgrade lenses using such kits it is difficult to determine whether a lens is a native Ai lens or an Ai upgraded lens, unless you know the lens serial number and get the chance to look here:
http://www.photosynthesis.co.nz/nikon/lenses.html
Deciding which lenses are competitive with later designs is not easy. For example, the F mount 105mm f2,5 lens was first released as a Sonnar design, sold as 105mm f2,5 Nikkor-P Auto. It was changed to a Gauss design, but still sold as 105mm f2,5 Nikkor-P Auto in 1971. It received Nikons multi coating in 1973 and then sold as 105mm f2,5 Nikkor-P.C Auto. Nikon did not change the optical formula of this lens when they updated it to a K lens, Ai lens or Ai-S lens, so the optical performance has not changed since 1973.
Now each of these 105mm lenses renders an image distinctively different, but none is "better" then the other.
Another nice example is the 85mm f1,8 Nikkor-H Auto which is said to be the sharpest of the 85mm f1,8 Nikkors. Many prefer it over the later designs, and over the multicoated Nikkor-H.C Auto version which other then lens coatings is said to be identical.
One of my favorite pre-Ai lenses, the 55mm f1,2 Nikkor-S Auto changed optical designs 5 times without renaming. All of them are equally impressive and the latest non-Ai version is identical in optical design to the
k version released in 1974 and the Ai version released in 1977.
What I try to express is that there is not always a difference in performance between pre-Ai lenses and Ai lenses because the optical formula often did not change, and when it did newer was not automatically better, just different. Which version works best for you will be a subjective thing at the least.
The main exceptions, lenses where everyone agreed that later versions do offer better performance then earlier versions are the 28mm f2,8 versions where the CRC Ai-S version is without a doubt the better lens, the 50mm f1,2 which is better with 9 aperture blades then with 7 (an upgrade which took place during the Ai-S range, so Ai-S lenses can either have 7 or 9 aperture blades), the 180mm f2,8 which is significantly better with ED glass then without and the 300mm f4,5.
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