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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 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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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
#2

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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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
#3

Pentax SMC DA FA 100mm f/2.8 WR Macro

Pentax SMC  DA FA 100mm f/2.8 WR Macro

"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
#4

Pentax SMC 55mm f/1.4 DA* SDM

Pentax SMC 55mm f/1.4 DA* SDM

"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
#5

Pentax SMC DA 50mm f/1.8

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
#6

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

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

"Great lens for everyday use... Fast and sharp.... The price was nice also" 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
#7

Pentax SMC HD DA 70mm f/2.4

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
#8

Pentax SMC D FA 50mm f/2.8 Macro

Pentax SMC  D FA 50mm f/2.8 Macro

"Very sharp lens, excellent image quality, great colours in the images. A great 50 mm all-rounder." 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
#9

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

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
#10

Pentax SMC DA* 50-135mm f/2.8 ED SDM

Pentax SMC  DA* 50-135mm f/2.8 ED SDM

"Great lens for taking pictures of the kids, fast, smooth zoom and I don't have to be in their face to get a shot, very sharp pictures..." bhphotovideo.com

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Aperture f/2.8
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Max focal length 135 mm
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Length 137 mm
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Zoom range 2.7x
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Weight 0.7 kg
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Min focal length 50 mm
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Diameter 76 mm
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Auto focus Yes