Appendix B: Manufacturer-specific lens terms
Canon
DO: Diffractive optics. Marked with a green stripe.
EF: Electrofocus, full frame. Mount marked with raised red dot.
EF-S: Electrofocus, short back focus. Subframe, white square.
IS: Lens contains an image stabilizing motor.
L: Lens is in Canon’s “luxury” professional lineup. Red stripe.
MP-E: Unusual macro lens capable of 5x magnification.
SF: Soft focus. Adjustable soft focus setting.
Roman numeral: The nth version produced of the lens type.
STM. Silent stepping motor optimized for video autofocus.
TS-E: A tilt-shift lens compatible with EOS cameras.
USM: Ultrasonic focusing motor. May have broken gold stripe.
Fujifilm/Fujinon
EBC: Electron Beam Coating. A type of vapor deposition for lens coatings. ...
Get The Lens now with the O’Reilly learning platform.
O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.
