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A wide angle view of a city scape

Pentax K Wide angle lenses made by Sigma that have a f/4 or faster aperture

#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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Fixed aperture
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The same maximum aperture at all focal lengths
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Aperture f/3.5
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Diameter 86 mm
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Zoom range 2x
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Length 89 mm
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Fixed aperture Yes
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Weight 0.5 kg
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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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Fixed aperture
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The same maximum aperture at all focal lengths
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Aperture f/2.8
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Diameter 84 mm
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Zoom range 2.9x
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Length 91 mm
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Fixed aperture Yes
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Weight 0.6 kg
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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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Aperture f/3.5
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Diameter 79 mm
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Zoom range 16.7x
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Length 102 mm
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Fixed aperture No
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Weight 0.6 kg
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Max focal length 300 mm
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Min focal length 18 mm
#4

Sigma 18-35mm f/1.8 DC HSM Art Pentax-k

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Fixed aperture
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The same maximum aperture at all focal lengths
 
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Wide aperture
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f/1.8
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Aperture f/1.8
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Diameter n/a
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Zoom range 1.9x
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Length n/a
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Fixed aperture Yes
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Weight 0.8 kg
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Max focal length 35 mm
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Min focal length 18 mm
#5

Sigma 18-35mm f/1.8 DC HSM Pentax K

Sigma 18-35mm f/1.8 DC HSM Pentax K
 
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Fixed aperture
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The same maximum aperture at all focal lengths
 
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Wide aperture
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f/1.8
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Aperture f/1.8
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Diameter 78 mm
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Zoom range 1.9x
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Length 121 mm
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Fixed aperture Yes
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Weight 0.8 kg
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Max focal length 35 mm
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Min focal length 18 mm
#6

Sigma 10-20mm f/4-5.6 EX DC J Pentax K

Sigma 10-20mm f/4-5.6 EX DC J Pentax K
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Aperture f/4
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Diameter 86 mm
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Zoom range 2x
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Length 89 mm
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Fixed aperture No
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Weight 0.5 kg
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Max focal length 20 mm
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Min focal length 10 mm
#7

Sigma 17-70mm f/2.8-4 DC Macro HSM Pentax K

Sigma 17-70mm f/2.8-4 DC Macro HSM Pentax K
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Aperture f/2.8
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Diameter 79 mm
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Zoom range 4.1x
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Length 82 mm
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Fixed aperture No
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Weight 465 g
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Max focal length 70 mm
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Min focal length 17 mm
#8

Sigma 18-200mm f/3.5-6.3 DC Macro HSM Pentax K

Sigma 18-200mm f/3.5-6.3 DC Macro HSM Pentax K
 
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Great zoom range
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11.1x
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Aperture f/3.5
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Diameter 71 mm
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Zoom range 11.1x
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Length 86 mm
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Fixed aperture No
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Weight 431 g
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Max focal length 200 mm
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Min focal length 18 mm
#9

Sigma 18-200mm f/3.5-6.3 II DC HSM Pentax K

Sigma 18-200mm f/3.5-6.3 II DC HSM Pentax K
 
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Great zoom range
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11.1x
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Aperture f/3.5
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Diameter 75 mm
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Zoom range 11.1x
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Length 88 mm
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Fixed aperture No
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Weight 490 g
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Max focal length 200 mm
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Min focal length 18 mm
#10

Sigma 18-250mm f/3.5-6.3 DC Macro HSM Pentax K

Sigma 18-250mm f/3.5-6.3 DC Macro HSM Pentax K
 
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Great zoom range
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13.9x
 
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Great telephoto lens
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250 mm
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Aperture f/3.5
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Diameter 74 mm
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Zoom range 13.9x
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Length 89 mm
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Fixed aperture No
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Weight 472 g
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Max focal length 250 mm
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Min focal length 18 mm