Canon | Nikon | Sigma | Tamron | ||||
---|---|---|---|---|---|---|---|
EF | 35mm Full Frame | F-Mount | 35mm Full Frame | DG | Full Frame | Di | Full Frame |
EF-S | APS-C 1.6x Crop | DX-Mount | APS-C 1.5x Crop | DC | Crop Sensor | Di II | Crop Sensor |
EF-M | Mirrorless | 1-Mount | Mirrorless | DN | Mirrorless | Di III | Mirrorless |
L-Series | Luxury | EX | Excellence | SP | Super Performance | ||
USM | Ultrasonic Motor | AF-S SWM | Auto Focus Silent Silent Wave Motor | HSM | HyperSonic Motor | USD | Ultrasonic Silent Drive |
STM | Stepper Motor | ||||||
IS | Image Stabilizer | VR | Vibration Reduction | OS | Optical Stabilization | VC | Vibration Compensation |
TS-E | Tilt-Shift Electromagnetic Diaphragm | PC-E | Perspective Control Electromagnetic Diaphragm | ||||
Macro | Close focusing | Micro | Close focusing | ||||
I/R | Internal/Rear Focusing | RF | Rear Focusing | IF RF | Internal Focusing Rear Focusing | IF | Internal Focusing |
FT-M | Full Time Manual Focusing | ||||||
ED | Extra-Low Dispersion | APO | Apochromatic | LD | Low Dispersion | ||
DO | Diffractive Optics | PF | Phase Fresnel |