| 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 | ||||