Tag Archives: Tamron

Lens abbreviations

Each lens manufacturer uses different abbreviations to describe the features or aspects of a lens. This post lists all abbreviations of Canon, Nikon, Sigma, Tamron and Tokina. Some general terms such as AF (auto-focus) and MF (manual-focus) are not listed.


AFDArc-Form DriveAn older type of auto focus motor, generally slower and noisier than USM
DODiffractive OpticsA technology used to make lenses with long focal lengths without the normal increase in physical size
EDExtra-low DispersionPrevents chromatic aberration because it concentrates and directs the wavelength of the light more effectively onto the camera's sensor
EFElectro FocusStandard lens mount, compatible with all EOS bodies
EF-SElectro Focus - Short back focusLens mount for APS-C sensor DSLRs
IFInner FocusTo ensure stability in focusing, this lens moves the inner lens group or groups without changing the lens' physical length
ISImage StabiliserA family of techniques used to reduce blurring associated with the motion of a camera. Specifically, it compensates for pan and tilt of a camera
LLuxuryProfessional lenses; good optical performance and a solid construction
MP-EMacro Photo ElectronicThese lenses are designed for macro photography and do not have autofocus, the "electronic" refers to the electronic aperture control
TS-ETilt-Shift lensControl of perspective and depth of field
USMUltra Sonic MotorAuto focus motor that offers fast and silent focusing powered by the ultrasonic vibration of a component, the stator, placed against another component

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