Description
This is a product description of the Canon EF-S 18-135mm f/3.5-5.6 IS USM lens. Here’s a summary of its key features:
**Optical Design**
* 1 ultra-low dispersion element to reduce chromatic aberrations
* 1 aspherical element to minimize spherical aberrations and distortions
* Super Spectra coating to minimize ghosting and flare
**Zoom and Focusing**
* 18-135mm focal length range (28.8-216mm equivalent on APS-C format)
* NANO USM system for fast, quiet, and accurate focusing
* Full-time manual focus control in one-shot AF mode
* Optional PZ-E1 Power Zoom Adapter for smoother, more natural zooming control when recording video
**Image Stabilization**
* Image Stabilizer compensates for up to four stops of camera shake
* Enables sharper handheld shooting in difficult lighting conditions and with slower shutter speeds
**Other Features**
* Rounded seven-blade diaphragm for pleasing bokeh quality when using selective focus and shallow depth of field techniques
Overall, this lens is designed to be versatile and suitable for both stills and video applications, with a wide-angle to telephoto range and advanced optics to reduce chromatic aberrations and distortions. Its NANO USM system provides fast and accurate focusing, while the Image Stabilizer helps to reduce camera shake. The optional Power Zoom Adapter adds an extra layer of convenience for video shooters.
