Thank you for purchasing a Canon product.The Canon EF-S18-135mm f/3.5-5.6 IS lens isa high-performance high-magnification zoomlens equipped with an Image Stabilizer, andhas been developed for digital SLRscompatible with EF-S lenses*.* As of Sptember 2009, only the EOS 70, EOS 500,EOS 400, EOS 300, EOS 200, EOS 20Da, EOSREBEL T1 i/SOOD, EOS REBEL XSil450D, EOSREBEL XS/1000D, EOS DIGITAL REBELXTil400D DIGITAL, EOS DIGITAL REBELXT/350D DIGITAL, and EOS DIGITALREBEU300D DIGITAL are compatible with EF-Slenses... "IS" stands for Image Stabilizer.Conventions used in this instructionWarning to prevent lens or cameramalfunction or damage.Supplementary notes on using the lensand taking pictures.ENG-1Features1. The Image Stabilizer gives the equivalenteffect of a shutter speed four stops faster*.This function provides optimal imagestabilization depending on shooting conditions(such as shooting still subjects and followingshots).2. Aspherical and UD lens elements result inoutstanding image delineation.3. A truly round aperture hole results in a nicerbackground blur.* Based on [1/(focal length x 1.6)] second. Generally,it requires a shutter speed [1/focallength] second orfaster to prevent camera shake (in 35mm format.With an EF-S lens, it would be [1/(focal length x1.6)] second).