To help with identification, the following list of abbreviations are used by Canon to designate their products:
EF: Electro Focus (Canon's standard lens mount)
EOS: Electro Optical System
IS: Image Stabilization
L: Canon's professional range of lenses (some say the "L" stands for "luxury")
USM: Ultrasonic Motor
To sell any of the above featured items (or if you have other gear you'd like to sell), please call us at (770) 333-4220 or (800) 342-5534. We are currently offering top market value for your clean, used gear. As a bonus, if you send us your equipment, we'll pay for shipping! Turnaround time is typically 24-48 hours once your equipment arrives in-house. Once you approve our offer, we'll send you a check. It's that easy!