I took the following panoramas during my holiday on Madeira with my Canon 50D and Tamron 17-50 f/2.8 lens. All the images are made out of two or more pictures and I used AutoPano to stitch the pictures.
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.
|AFD||Arc-Form Drive||An older type of auto focus motor, generally slower and noisier than USM|
|DO||Diffractive Optics||A technology used to make lenses with long focal lengths without the normal increase in physical size|
|ED||Extra-low Dispersion||Prevents chromatic aberration because it concentrates and directs the wavelength of the light more effectively onto the camera's sensor|
|EF||Electro Focus||Standard lens mount, compatible with all EOS bodies|
|EF-S||Electro Focus - Short back focus||Lens mount for APS-C sensor DSLRs|
|IF||Inner Focus||To ensure stability in focusing, this lens moves the inner lens group or groups without changing the lens' physical length|
|IS||Image Stabiliser||A family of techniques used to reduce blurring associated with the motion of a camera. Specifically, it compensates for pan and tilt of a camera|
|L||Luxury||Professional lenses; good optical performance and a solid construction|
|MP-E||Macro Photo Electronic||These lenses are designed for macro photography and do not have autofocus, the "electronic" refers to the electronic aperture control|
|TS-E||Tilt-Shift lens||Control of perspective and depth of field|
|USM||Ultra Sonic Motor||Auto focus motor that offers fast and silent focusing powered by the ultrasonic vibration of a component, the stator, placed against another component|