AF - Autofocus
AF-I – Internal Autofocus
AF-S - Focusing is driven by a "Silent Wave" motor
A/M mode – Autofocus Priority with Manual override
A-M switch – Automatic – Manual focus switch
AS - Aspherical lens elements
ASP - Aspherical lens elements
CRC - Close-Range Correction system
D - The lens provides Distance information to the camera electronically for more accurate light metering (All G lenses are also D lenses)
DC - Defocus Control
DX - The lens is specifically designed for use on Nikon digital ASP-C DSLR cameras.
ED - Extra-low Dispersion
G – “Gelded”, lens has no aperture ring
IF - Internal Focus
M/A - Manual/Automatic focus mode
ML - Meniscus Protective Lens
N - Nano Crystal Coat
RD – Rounded Diaphragm
RF – Rear Focusing
SIC - Super Integrated Coating
SWM - Silent Wave Motor
VR - Vibration Reduction