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Pentax K-7
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Focus motor
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Pentax K-7

Pentax K-7 Lenses for less than $400 that have a Sigma HSM focus motor

#1

Sigma 10-20mm f/3.5 EX DC HSM Pentax K

Sigma 10-20mm f/3.5 EX DC HSM Pentax K

"This lens is absolutely great for scenery and landscape. I did a lot of research for a good wide-angle lens and for the price this lens was definitely my favorite." bhphotovideo.com

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Focus motor Sigma HSM
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Aperture f/3.5
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Zoom range 2x
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Diameter 86 mm
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Fixed aperture Yes
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Length 89 mm
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Max focal length 20 mm
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Min focal length 10 mm
#2

Sigma 17-50mm f/2.8 EX DC HSM Pentax K

Sigma 17-50mm f/2.8 EX DC HSM Pentax K
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Focus motor Sigma HSM
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Aperture f/2.8
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Zoom range 2.9x
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Diameter 84 mm
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Fixed aperture Yes
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Length 91 mm
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Max focal length 50 mm
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Min focal length 17 mm
#3

Sigma 18-300mm f/3.5-6.3 DC MACRO HSM Contemporary Pentax K

Sigma 18-300mm f/3.5-6.3 DC MACRO HSM Contemporary Pentax K
 
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Great zoom range
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16.7x
 
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Great telephoto lens
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300 mm
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Focus motor Sigma HSM
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Aperture f/3.5
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Zoom range 16.7x
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Diameter 79 mm
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Fixed aperture No
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Length 102 mm
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Max focal length 300 mm
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Min focal length 18 mm