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Lens category
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Pentax K Lenses that have a f/2 or faster aperture

#1

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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Length 38 mm
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Auto focus Yes
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Max focal length 50 mm
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Diameter 64 mm
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Weight 221 g
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Min focal length 50 mm
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Zoom range 1x
#2

Pentax SMC 55mm f/1.4 DA* SDM

Pentax SMC 55mm f/1.4 DA* SDM

"This lens produces an accurate reproduction. The f/1.4 aperature has opened-up a whole new range of photo oppurtunities." 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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Length 66 mm
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Auto focus Yes
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Max focal length 55 mm
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Diameter 71 mm
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Weight 375 g
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Min focal length 55 mm
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Zoom range 1x
#3

Pentax SMC FA 77mm f/1.8

Pentax SMC  FA 77mm f/1.8

"Its color rendition is simply unbelievable. It exceeds even the abilities of my 43 mm Limited for sunsets and sunrises when coupled with the CTE White Balance settings and custom Hi/Lo Key Adjust features on my K-7." bhphotovideo.com

 
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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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Length 48 mm
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Auto focus Yes
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Max focal length 77 mm
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Diameter 74 mm
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Weight 269 g
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Min focal length 77 mm
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Zoom range 1x
#4

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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Length 38 mm
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Auto focus Yes
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Max focal length 50 mm
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Diameter 64 mm
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Weight 122 g
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Min focal length 50 mm
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Zoom range 1x
#5

Pentax SMC FA 43mm f/1.9

Pentax SMC  FA 43mm f/1.9

"So far the results have been great. Nice and sharp. Great bokeh. Excellent lighted build quality." bhphotovideo.com

 
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Supports autofocus
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Easier to use
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Aperture f/1.9
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Length 28 mm
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Auto focus Yes
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Max focal length 43 mm
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Diameter 64 mm
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Weight 156 g
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Min focal length 43 mm
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Zoom range 1x
#6

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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Length 46 mm
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Auto focus Yes
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Max focal length 35 mm
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Diameter 64 mm
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Weight 200 g
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Min focal length 35 mm
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Zoom range 1x
#7

Rokinon 135mm f/2 ED UMC Pentax K

Rokinon 135mm f/2 ED UMC Pentax K
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Aperture f/2
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Length n/a
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Auto focus No
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Max focal length 135 mm
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Diameter n/a
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Weight 0.8 kg
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Min focal length 135 mm
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Zoom range 1x
#8

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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Length 88 mm
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Auto focus No
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Max focal length 16 mm
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Diameter 83 mm
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Weight 0.6 kg
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Min focal length 16 mm
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Zoom range 1x
#9

Rokinon 50mm f/1.4 AS IF UMC Pentax-k

Placeholder
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Aperture f/1.4
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Length n/a
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Auto focus No
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Max focal length 50 mm
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Diameter n/a
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Weight 0.5 kg
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Min focal length 50 mm
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Zoom range 1x
#10

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

Samyang 16mm f/2 ED AS UMC CS Pentax K
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Aperture f/2
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Length 88 mm
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Auto focus No
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Max focal length 16 mm
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Diameter 86 mm
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Weight 0.6 kg
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Min focal length 16 mm
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Zoom range 1x