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Pentax K-7
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Focus motor
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Pentax K-7

Pentax K-7 Lenses made by Pentax for less than $800 that have a Pentax SDM focus motor

#1

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

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

"Great lens for taking pictures of the kids, fast, smooth zoom and I don't have to be in their face to get a shot, very sharp pictures..." bhphotovideo.com

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

Pentax SMC DAA 18-270mm f/3.5-6.3 ED SDM

Pentax SMC  DAA 18-270mm f/3.5-6.3 ED SDM
 
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Great zoom range
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15x
 
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Great telephoto lens
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270 mm
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Focus motor Pentax SDM
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Max focal length 270 mm
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Zoom range 15x
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Length 89 mm
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Fixed aperture No
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Min focal length 18 mm
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Aperture f/3.5
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Weight 453 g
#3

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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Focus motor Pentax SDM
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Max focal length 55 mm
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Zoom range 1x
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Length 66 mm
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Fixed aperture n/a
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Min focal length 55 mm
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Aperture f/1.4
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Weight 375 g
#4

Pentax SMC DA 17-70mm f/4 AL SDM

Pentax SMC  DA 17-70mm f/4 AL SDM

"The lens is well-made, the SDM focusing is fast and quiet (used on a Pentax K20D), images are sharp throughout the zoom range, the bokeh is pleasing, and the lens is weatherproof" bhphotovideo.com

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Focus motor Pentax SDM
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Max focal length 70 mm
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Zoom range 4.1x
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Length 94 mm
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Fixed aperture Yes
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Min focal length 17 mm
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Aperture f/4
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Weight 485 g