What does Nikon lens AFDX mean?

AF marked on Nikon lens means autofocus. DX means that this lens is only suitable for digital SLR cameras in APS-C format.

Also: AF-S: autofocus lens, ultrasonic mute motor. Ed: The lens contains ultra-low dispersion lens, an advanced optical lens. VR: Anti-shake technology

Nikon's lens classification is rather confusing. Early cameras were driven by autofocus, so the focusing sound was very loud (especially on early advanced cameras). Nikon's automatic and manual camera lens interfaces are mechanically universal, so the design of AF lens is limited to some extent, which leads to various problems later. Until the end of 1990s, Nikon didn't have a lens larger than 300mm for a long time. A big reason is that the driving force and speed of the fuselage are not good, so the corresponding AF-I fuselage driving lens is introduced.

Nikon uses three kinds of aspheric lenses: the precise grinding of aspheric lenses is the most elaborate lens manufacturing process to meet extremely strict production standards, and this kind of lens is also unique to large aperture wide-angle lenses such as AF Nicole 28mm f/ 1.4D or AF Zoom Nicole 20-35mm f/2.8D; The hybrid lens is molded on the optical glass with special plastic, which is used for the standard Nicole zoom lens.

Nikon has a very strict quality assurance system to ensure the implementation of all technical measures and the long-term high stability of product quality. From the raw materials of optical glass to the final assembly test of lenses, it is completed in our factory and is always under the repeated inspection and control of precision instruments and skilled technicians. Although the cost is increased, the price of Nikon lens is higher.