Product Description
smc P-DA 21mm F3.2 AL Limited
With newly developed, high-performance optics, this new lens measures only one
inch (25 millimeters long) and weighs a mere 4.9 ounces (140 grams). Mounted on
a PENTAX digital SLR camera body, the lens protrudes very little from the
cameras front panel, making it an ideal choice for carry-everywhere,
instantaneous snapshot photography. This versatile angle of view produces
natural images with a moderate perspective and an expanded depth of field (or a
wide in-focus area), making it ideal for many different types of subjects and
occasions, including snapshots, landscape, travel photos, and architecture. The
DA 21mm incorporates a hybrid aspherical lens in its eighth optical element to
effectively compensate for a variety of aberrations, which cause adverse effects
on overall image quality. In order to assure high-quality image reproduction
over the entire focusing range, it also features a floating mechanism, which is
designed to adjust the degree of aberration compensation in relation to the
focusing distance.
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