Wide aperture
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Focus motor
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A wide angle view of a city scape

Wide angle lenses that have a Pentax SDM focus motor and have a f/2.8 or faster aperture

#1

Pentax SMC DA* 16-50mm f/2.8 ED SDM

Pentax SMC  DA* 16-50mm f/2.8 ED SDM

"Great construction, versatile and great image quality, especially the diaphragm closing a little more than 16mm focal length." bhphotovideo.com

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Aperture f/2.8
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Diameter 84 mm
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Focus motor Pentax SDM
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Auto focus Yes
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Weight 0.6 kg
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Zoom range 3.1x
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Length 99 mm
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Fixed aperture Yes