Stephen's web info is good; but sometimes there are errors in dates; like the one I caught being off 2 years. Many of the AI versus AI-S lenses are the same optical formula; but many websites seem to think all the optical designs were redone! The 50mm F1. Most of the changes for AI to AI-s were mechanical; to make the diaphram movement consistant for each lens.
The smallest aperture of these lenses are marked in Orange. The web miss information adds to depressing the value of great lenses sometimes. The post Gauss version of the mm F2. I bought one new about for dollars; and had it factory AI'd for 35 dollars. The resultant lens was WAY cheaper that the new AI Nikkor; and also in a more solid mount; with a wider focusing ring.
This lens was slightly sharper than my other mm AI lens; but this is due to production variations; not a design difference. Forum Threaded view. Jan 22, Reply to thread Reply with quote Complain. Reply Reply with quote Reply to thread Complain. Xian wrote: I have a couple old Nikkor MF lenses. Thank you all for sharing your knowledge! Christian Derrel wrote: Besides the "speed notch" that AiS lenses have on the chromed area of the mounting side of the lens, one of the easiest ways to differentiate between an Ai lens and an AiS lens is to look at the aperture ring area.
Cheers, James Derrel wrote: Besides the "speed notch" that AiS lenses have on the chromed area of the mounting side of the lens, one of the easiest ways to differentiate between an Ai lens and an AiS lens is to look at the aperture ring area. Derrel -- hide signature Nikon D J These days with D, Derrel wrote: I have wondered for a long time why Nikon never did mark its lenses with a simple nomenclature like "Ai" or "AiS" right on the barrel or the filter ring area Thanks, my faithful F3's won't be happy with G.
Stan -- hide signature Stan Disbrow's gear list: Stan Disbrow's gear list. Light travels at 2. Catch some today! Michael Benveniste's gear list: Michael Benveniste's gear list. Hi, There was also a change to the focus throw on AI-S to 90 degrees. F Forum M My threads. You may also like. Nikon D6: initial sample images. Nikon AF-S mm F2. Latest sample galleries. Tamron mm F2. Panasonic S 35mm F1. DJI Mavic 3 Cine sample gallery. Nikon Z9 pre-production sample gallery. See more galleries ». Latest in-depth reviews.
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