·Employ mirror necessary - understand add of meaning of label of each brand camera lens
•Ni Kangjing head
AI: "Aperture Index " abbreviate, understanding is express aperture can. Use at automatic anxious, hand uses focus watch for an opportunity. For example, ai AF Zoom NIkkor ED 18-35mm F3.5-4.5D(IF) .

NIKKOR: A lot of people mix it Ni Kang (NIKON) the brand is promiscuous, actually this is the camera lens brand that Ni Kang company produces. For example, ai AF-S Zoom Nikkor ED 28-70mm F2.8D (IF) .

ED: "Extra-low Dispersion (exceed low chromatic dispersion) " abbreviate, look at the produces possibly off color in camera lens to decrease, collect the camera lens that extremely small special glass is made and becomes with off color. For example, ai AF Nikkor ED 180mm F2.8D (IF) .

D: "Dimension " abbreviate, ni Kang company head those who push is OK support 3 dimension the 8 camera lens that break up the type that measure light. Exemple
Be like, ai AF DC Nikkor 105mm F2D.

