The Canon EF-S 10-18mm f/4.5-5.6 IS STM Lens
is a wide-angle zoom lens designed specifically for EOS APS-C DSLRs,
where it provides a 35mm-equivalent focal length range of 16-28.8mm. The
optical design incorporates one aspherical element, one UD (Ultra-low
dispersion) element, and one large-diameter element to minimize
chromatic aberrations throughout the zoom range and contribute to
notable image sharpness and clarity. Enhanced lens coatings have also
been applied to lens elements to minimize lens flare and ghosting for
maintained image contrast and color neutrality.
Benefitting working in difficult lighting conditions, an Optical Image
Stabilizer has been integrated into the lens design to minimize the
appearance of camera shake by up to an effective four shutter speed
steps. Pairing well with Canon's EOS Movie Servo AF, an STM stepping AF
motor produces smooth, near-silent focusing performance that is further
benefitted by a rear-focus design, high-speed CPU, and intelligent AF
algorithms for quickened focusing. Full-time manual focus override can
also be utilized for fine-tuned focusing precision as closely as 8.7".
Wide-angle zoom lens specifically designed for APS-C-sized
sensors provides a 35mm-equivalent focal length range of 16-28.8mm.
Four-group optical zoom system helps to realize a compact, lightweight form factor.
One UD element, one aspherical element, and one
large-diameter element have been incorporated into the optical design to
minimize aberrations and distortion throughout the zoom range.
Enhanced lens coatings have been applied to lens surfaces to
reduce flare and ghosting for maintained image contrast and color
fidelity.
An Optical Image Stabilizer helps to minimize the appearance
of camera shake by up to four stops for improved usability in difficult
lighting conditions.
An STM stepping AF motor realizes smooth, near-silent
autofocus that is complemented by a rear focus system, advanced AF
algorithms, and a high-speed CPU for fast AF performance.
Full-time manual focus permits critical focusing precision, even in AF mode.
A seven-blade circular diaphragm helps to produces an aesthetic out-of-focus quality.