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Pentax K Lenses for less than $400 that have a f/2 or faster aperture

#1

Pentax SMC DA 50mm f/1.8

Pentax SMC  DA 50mm f/1.8
 
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Supports autofocus
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Easier to use
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Aperture f/1.8
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Min focal length 50 mm
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Auto focus Yes
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Weight 122 g
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Diameter 64 mm
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Max focal length 50 mm
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Length 38 mm
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Zoom range 1x
#2

Samyang 35mm f/1.4 AS UMC Pentax K

Samyang 35mm f/1.4 AS UMC Pentax K
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Aperture f/1.4
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Min focal length 35 mm
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Auto focus No
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Weight 0.7 kg
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Diameter 83 mm
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Max focal length 35 mm
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Length 110 mm
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Zoom range 1x
#3

Pentax SMC FA 50mm f/1.4

Pentax SMC  FA 50mm f/1.4

"The pictures are very sharp. Low light is fantastic. I have not found anything I dislike about it." bhphotovideo.com

 
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Supports autofocus
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Easier to use
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Aperture f/1.4
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Min focal length 50 mm
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Auto focus Yes
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Weight 221 g
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Diameter 64 mm
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Max focal length 50 mm
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Length 38 mm
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Zoom range 1x
#4

Pentax SMC 35mm f/2 FA AL

Pentax SMC 35mm f/2 FA AL
 
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Supports autofocus
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Easier to use
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Aperture f/2
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Min focal length 35 mm
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Auto focus Yes
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Weight 200 g
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Diameter 64 mm
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Max focal length 35 mm
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Length 46 mm
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Zoom range 1x
#5

Rokinon 16mm f/2 ED AS UMC CS Pentax K

Rokinon 16mm f/2 ED AS UMC CS Pentax K
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Aperture f/2
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Min focal length 16 mm
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Auto focus No
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Weight 0.6 kg
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Diameter 83 mm
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Max focal length 16 mm
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Length 88 mm
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Zoom range 1x
#6

Samyang 85mm f/1.4 Pentax K

Samyang 85mm f/1.4 Pentax K
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Aperture f/1.4
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Min focal length 85 mm
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Auto focus No
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Weight 0.5 kg
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Diameter 78 mm
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Max focal length 85 mm
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Length 73 mm
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Zoom range 1x