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Pentax K-1
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Pentax K-1

Pentax K-1 Lenses that have a f/2.8 or faster aperture

#1

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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Max focal length 135 mm
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Auto focus Yes
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Min focal length 50 mm
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Length 137 mm
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Weight 0.7 kg
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Diameter 76 mm
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Zoom range 2.7x
#2

Pentax SMC DA 40mm f/2.8

Pentax SMC  DA 40mm f/2.8

"Great option for taking casual pictures of family and friends or for low-key urban excursions." bhphotovideo.com

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Aperture f/2.8
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Max focal length 40 mm
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Auto focus Yes
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Min focal length 40 mm
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Length 15 mm
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Weight 91 g
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Diameter 64 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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Aperture f/1.8
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Max focal length 77 mm
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Auto focus Yes
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Min focal length 77 mm
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Length 48 mm
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Weight 269 g
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Diameter 74 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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Aperture f/1.8
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Max focal length 50 mm
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Auto focus Yes
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Min focal length 50 mm
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Length 38 mm
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Weight 122 g
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Diameter 64 mm
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Zoom range 1x
#5

Pentax SMC FA 31mm f/1.8

Pentax SMC  FA 31mm f/1.8

"The autofocus is fast and accurate and its size and weight balances out the K7 with or without the battery grip." bhphotovideo.com

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Aperture f/1.8
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Max focal length 31 mm
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Auto focus Yes
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Min focal length 31 mm
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Length 69 mm
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Weight 346 g
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Diameter 66 mm
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Zoom range 1x
#6

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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Max focal length 70 mm
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Auto focus Yes
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Min focal length 70 mm
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Length 25 mm
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Weight 130 g
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Diameter 64 mm
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Zoom range 1x
#7

Samyang 35mm f/1.4 AS UMC Pentax K

Samyang 35mm f/1.4 AS UMC Pentax K
 
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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 35 mm
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Auto focus No
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Min focal length 35 mm
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Length 110 mm
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Weight 0.7 kg
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Diameter 83 mm
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Zoom range 1x
#8

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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Max focal length 50 mm
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Auto focus Yes
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Min focal length 50 mm
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Length 38 mm
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Weight 221 g
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Diameter 64 mm
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Zoom range 1x
#9

Pentax SMC 35mm DA L f/2.4 AL

Pentax SMC 35mm DA L f/2.4 AL
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Aperture f/2.4
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Max focal length 35 mm
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Auto focus Yes
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Min focal length 35 mm
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Length 46 mm
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Weight 125 g
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Diameter 64 mm
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Zoom range 1x
#10

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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Max focal length 100 mm
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Auto focus Yes
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Min focal length 100 mm
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Length 64 mm
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Weight 340 g
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Diameter 81 mm
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Zoom range 1x