Pentax HD-D FA 15-30mm F2.8 ED SDM WR w/Case Black
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Pentax HD-D FA 15-30mm F2.8 ED SDM WR w/Case Black, Pentax HD-D FA 15-30mm F2.8 ED SDM WR w/Case Black. Thanks to its exaggerated perspective typical of an ultra-wide-angle lens and high-resolution imaging power it captures dynamic sweeping views of subjects especially in landscape photography. Treated with the PENTAX-developed HD Coating it produces well-defined fine-detailed images with ample light levels even at the edges of the image field while effectively reducing chromatic aberration distortion and coma to a minimum. Its large F2.8 maximum aperture also comes in handy for photographing nightscapes and starry skies. The built-in SDM (Supersonic Direct-drive Motor) provides quiet high-speed autofocus operation. Specifications for Pentax HD-D FA 15-30mm F2.8 ED SDM WR: Manufacturer: Pentax Color: Black Features of Pentax HD-D FA 15-30mm F2.8 ED SDM WR This zoom lens incorporates three ED (Extra-low Dispersion) glass optical elements and three aspherical optical elements in its 18-element 13-group optics to deliver high-resolution images rich in contrast even at the edges of the image field while effectively minimizing chromatic aberration distortion and coma. Since this zoom lens provides a maximum aperture of F2.8 over its entire zoom range it is versatile enough to be used for many different subjects and scenes ranging from sweeping landscapes to nightscapes and starry skies. Despite its ultra-wide-angle perspective it can capture the subject with an excellent bokeh (defocus) effect on the background. Even in macro photography from its minimum focusing distance of 28 centimeters it can capture subjects with a well-defined sense of depth. The incorporation of a new-generation SDM (Supersonic Direct-drive Motor) assures that this zoom lens provides quiet high-speed autofocus operation letting the photographer react swiftly to all types of subjects. Special seals applied throughout the lens body provide this zoom lens with dependable weather-resistant construction effectively preventing the intrusion of water into the lens interior. By pairing it with a weather-resistant PENTAX digital SLR camera body the photographer has a durable dependable digital imaging system that performs superbly under demanding shooting conditions even in the rain or mist or at locations prone to water splashes or spray. The lens is treated with high-grade multi-layer HD Coating. Compared with conventional multi-layer coatings this PENTAX-original coating assures higher light transmittance and less reflection to deliver bright high-contrast images free of flare and ghost images even under demanding lighting conditions such as backlight. Quick-Shift Focus System for instant switching from autofocus to manual-focus operation by holding the shutter-release button halfway down and turning the focus ring after the subject is captured in focus by the cameras AF system. Rounded diaphragm with nine blades to produce a smooth beautiful bokeh (defocus) effect while minimizing the streaking effect of point light sources. SP (Super Protect) Coating applied to the front surface of the lens to effectively repel water and grease. Package Contents: Pentax HD-D FA 15-30mm F2.8 ED SDM WR Pentax 21280: HD-D FA 15-30mm F2.8 ED SDM WR w/Case Black