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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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Diameter 74 mm
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Fixed aperture n/a
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Min focal length 77 mm
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Length 48 mm
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Max focal length 77 mm
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Zoom range 1x
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Weight 269 g
#2

Pentax SMC FA 50mm f/1.4

Pentax SMC  FA 50mm f/1.4

"I love love love this new lens, the quality of the photos is spectacular if done in the right lighting. I would absolutely recommend for novices and professionals alike." 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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Diameter 64 mm
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Fixed aperture n/a
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Min focal length 50 mm
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Length 38 mm
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Max focal length 50 mm
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Zoom range 1x
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Weight 221 g
#3

Pentax SMC DA FA 100mm f/2.8 WR Macro

Pentax SMC  DA FA 100mm f/2.8 WR Macro

"I bought this in conjunction with the 160fc ringflash, perfect match for this lens.. Aside from being exellent at macro, I found this lens to be stuningly vibrant and contrasty for normal shooting.." bhphotovideo.com

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Aperture f/2.8
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Diameter 81 mm
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Fixed aperture n/a
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Min focal length 100 mm
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Length 64 mm
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Max focal length 100 mm
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Zoom range 1x
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Weight 340 g
#4

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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Wide aperture
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f/1.4
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Aperture f/1.4
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Diameter 71 mm
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Fixed aperture n/a
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Min focal length 55 mm
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Length 66 mm
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Max focal length 55 mm
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Zoom range 1x
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Weight 375 g
#5

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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Diameter 84 mm
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Fixed aperture Yes
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Min focal length 16 mm
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Length 99 mm
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Max focal length 50 mm
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Zoom range 3.1x
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Weight 0.6 kg
#6

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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Diameter 66 mm
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Fixed aperture n/a
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Min focal length 50 mm
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Length 66 mm
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Max focal length 50 mm
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Zoom range 1x
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Weight 264 g
#7

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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Diameter 64 mm
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Fixed aperture n/a
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Min focal length 50 mm
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Length 38 mm
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Max focal length 50 mm
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Zoom range 1x
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Weight 122 g
#8

Pentax SMC HD DA 70mm f/2.4

Pentax SMC HD DA 70mm f/2.4
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Aperture f/2.4
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Diameter 64 mm
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Fixed aperture n/a
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Min focal length 70 mm
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Length 25 mm
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Max focal length 70 mm
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Zoom range 1x
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Weight 130 g
#9

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

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

"The build quality seems top notch, no play in the focus or zoom rings at all, and very smooth action of both." bhphotovideo.com

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Aperture f/2.8
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Diameter 76 mm
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Fixed aperture Yes
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Min focal length 50 mm
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Length 137 mm
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Max focal length 135 mm
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Zoom range 2.7x
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Weight 0.7 kg
#10

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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Great zoom range
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4.1x
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Aperture f/2.8
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Diameter 79 mm
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Fixed aperture No
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Min focal length 17 mm
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Length 82 mm
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Max focal length 70 mm
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Zoom range 4.1x
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Weight 465 g