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Pentax K-7
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Focus motor
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Pentax K-7

Pentax K-7 Portrait lenses made by Pentax that have a Pentax SDM focus motor and have a f/2.8 or faster aperture

#1

Pentax SMC DA* 50-135mm f/2.8 ED SDM

Pentax SMC  DA* 50-135mm f/2.8 ED SDM

"The build quality seems top notch, no play in the focus or zoom rings at all, and very smooth action of both." bhphotovideo.com

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Aperture f/2.8
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Zoom range 2.7x
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Focus motor Pentax SDM
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Diameter 76 mm
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Length 137 mm
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Min focal length 50 mm
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Max focal length 135 mm
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Weight 0.7 kg
#2

Pentax SMC 55mm f/1.4 DA* SDM

Pentax SMC 55mm f/1.4 DA* SDM

"I love the lens in almost all ways. It's sharp, fast focusing, needs very little light in F1.4 and the quick shift to manual focus is really OK to have." bhphotovideo.com

 
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Wide aperture
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f/1.4
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Aperture f/1.4
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Zoom range 1x
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Focus motor Pentax SDM
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Diameter 71 mm
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Length 66 mm
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Min focal length 55 mm
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Max focal length 55 mm
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Weight 375 g
#3

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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Zoom range 3.1x
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Focus motor Pentax SDM
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Diameter 84 mm
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Length 99 mm
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Min focal length 16 mm
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Max focal length 50 mm
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Weight 0.6 kg
#4

Pentax SMC DAA* 50-135mm f/2.8 ED SDM

Placeholder
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Aperture f/2.8
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Zoom range 2.7x
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Focus motor Pentax SDM
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Diameter n/a
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Length n/a
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Min focal length 50 mm
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Max focal length 135 mm
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Weight 0.7 kg