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A black and white portrait of a man

Pentax K Portrait lenses that have a f/2.8 or faster aperture

#1

Pentax SMC FA 50mm f/1.4

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

 
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Wide aperture
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f/1.4
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Aperture f/1.4
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Max focal length 50 mm
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Length 38 mm
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Zoom range 1x
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Weight 221 g
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Min focal length 50 mm
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Diameter 64 mm
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Auto focus Yes
#2

Pentax SMC D FA 50mm f/2.8 Macro

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"As expected this is a fast, versatile lens for taking macro photographs." bhphotovideo.com

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Aperture f/2.8
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Max focal length 50 mm
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Length 66 mm
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Zoom range 1x
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Weight 264 g
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Min focal length 50 mm
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Diameter 66 mm
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Auto focus Yes
#3

Pentax SMC DA 50mm f/1.8

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Aperture f/1.8
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Max focal length 50 mm
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Length 38 mm
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Zoom range 1x
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Weight 122 g
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Min focal length 50 mm
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Diameter 64 mm
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Auto focus Yes
#4

Pentax SMC DA FA 100mm f/2.8 WR Macro

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"It is light weight, very smooth, very sharp images" bhphotovideo.com

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Aperture f/2.8
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Max focal length 100 mm
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Length 64 mm
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Zoom range 1x
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Weight 340 g
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Min focal length 100 mm
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Diameter 81 mm
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Auto focus Yes
#5

Pentax SMC FA 77mm f/1.8

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"Great multi-purpose performing lens, particularly if you want to travel light and leave the bag at home." bhphotovideo.com

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Aperture f/1.8
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Max focal length 77 mm
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Length 48 mm
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Zoom range 1x
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Weight 269 g
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Min focal length 77 mm
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Diameter 74 mm
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Auto focus Yes
#6

Pentax SMC 55mm f/1.4 DA* SDM

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"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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Aperture f/1.4
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Max focal length 55 mm
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Length 66 mm
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Zoom range 1x
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Weight 375 g
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Min focal length 55 mm
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Diameter 71 mm
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Auto focus Yes
#7

Pentax SMC DA* 16-50mm f/2.8 ED SDM

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"Great construction, versatile and great image quality, especially the diaphragm closing a little more than 16mm focal length." bhphotovideo.com

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Aperture f/2.8
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Max focal length 50 mm
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Length 99 mm
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Zoom range 3.1x
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Weight 0.6 kg
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Min focal length 16 mm
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Diameter 84 mm
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Auto focus Yes
#8

Pentax SMC HD D FA* 70-200mm f/2.8 ED DC AW

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Great telephoto lens
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200 mm
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Aperture f/2.8
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Max focal length 200 mm
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Length 203 mm
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Zoom range 2.9x
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Weight 1.8 kg
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Min focal length 70 mm
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Diameter 92 mm
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Auto focus Yes
#9

Pentax SMC HD DA 70mm f/2.4

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Quite short
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25 mm
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Aperture f/2.4
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Max focal length 70 mm
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Length 25 mm
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Zoom range 1x
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Weight 130 g
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Min focal length 70 mm
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Diameter 64 mm
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Auto focus Yes
#10

Tamron SP 90mm f/2.8 Di Macro Pentax K

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"This Tamron macro is a classic and has performance to back it up. It is sharp wide open and sharpness does not drop until f/16. Relative to the Pentax 100 f/3.5 macro, this Tamron is a tank." bhphotovideo.com

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Aperture f/2.8
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Max focal length 90 mm
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Length 97 mm
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Zoom range 1x
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Weight 405 g
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Min focal length 90 mm
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Diameter 71 mm
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Auto focus Yes