5x Zoom Range
A fivefold zoom range offers high flexibility. It is the ideal choice when maximum shooting versatility is needed without the size and weight penalty of carrying several lenses.
ZEISS T* anti-reflective coating
The optical elements of ZEISS lenses feature T*® anti-reflective coating on all surfaces and an optical design that guarantees images of superior brilliance at all times, even in unfavourable lighting conditions. We apply the anti-reflective coating to the lens surfaces by the vapour deposition of extremely thin, transparent layers on the glass. In this process, special substances are vaporized with extremely high energy in a high-vacuum environment and are subsequently deposited on the glass surfaces, one after another, as layers with precisely controlled thicknesses to achieve the desired reduction of reflective properties. The first coating techniques were employed by ZEISS as long ago as in the 1930s.
Excellent resolution and high contrast
Richly saturated and vivid colours are a must in the creation of lasting impressions. However, stray light within an optical system leads to a lightening of the image that is particularly noticeable in the shadows. This reduces image contrast, with the result that exposures lack contrast and appear faded. To avoid this, ZEISS combines various specially developed technologies to reduce the undesirable effects of stray light.
Smooth, silent AF operation
Design of the autofocus system requires extremely accurate shifting of particular lens groups. While this is normally achieved via mechanical coupling from the camera body, ZA lenses feature a built-in SSM (Super Sonic wave Motor) focusing system for even more refined AF performance.
