The Nikon AI-S were photo lenses created in the 70’s and 80’s and this set has been beautifully rehoused by Zero Optik. These lenses offer plenty of contrast, especially for their vintage. These lenses can be used as both to create a clean and precise image when stopped down and when wide open can give you great character with aberration and highlight blooming. These Nikon AI-S are one of the go-to vintage Full Frame sets available.