Wide aperture
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Lens category
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Lens mount
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Type
A low light shot without a flash

Pentax K Prime Low light lenses that have a f/2.8 or faster aperture

#1

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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Length n/a
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Min focal length 35 mm
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Diameter n/a
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Weight 125 g
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Auto focus Yes
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Max focal length 35 mm
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Zoom range 1x
#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."

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Aperture f/1.4
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Length n/a
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Min focal length 50 mm
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Diameter n/a
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Weight 221 g
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Auto focus Yes
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Max focal length 50 mm
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Zoom range 1x
#3

Pentax SMC FA 43mm f/1.9

Pentax SMC  FA 43mm f/1.9

"The build quality alone is just so superior; this little beauty is just a joy to handle."

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Aperture f/1.9
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Length n/a
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Min focal length 43 mm
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Diameter n/a
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Weight 156 g
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Auto focus Yes
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Max focal length 43 mm
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Zoom range 1x
#4

Pentax SMC FA 77mm f/1.8

Pentax SMC  FA 77mm f/1.8

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

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Aperture f/1.8
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Length n/a
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Min focal length 77 mm
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Diameter n/a
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Weight 269 g
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Auto focus Yes
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Max focal length 77 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."

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

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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Length n/a
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Min focal length 50 mm
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Diameter n/a
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Weight 122 g
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Auto focus Yes
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Max focal length 50 mm
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Zoom range 1x
#7

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."

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Aperture f/1.4
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Length n/a
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Min focal length 55 mm
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Diameter n/a
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Weight 375 g
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Auto focus Yes
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Max focal length 55 mm
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Zoom range 1x
#8

Sigma 50mm f/1.4 EX DG HSM Pentax-k

Sigma 50mm f/1.4 EX DG HSM Pentax-k

"First off it's a solid lens, a bit heavy but it takes a beating. Fast focus and quiet. I use it with k20 and I am very happy with the results. A must for low light photography."

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Aperture f/1.4
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Length n/a
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Min focal length 50 mm
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Diameter n/a
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Weight 0.5 kg
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Auto focus Yes
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Max focal length 50 mm
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Zoom range 1x
#9

Pentax SMC 35mm f/2 FA AL

Pentax SMC 35mm f/2 FA AL
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Aperture f/2
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Length 46 mm
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Min focal length 35 mm
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Diameter 64 mm
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Weight 200 g
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Auto focus Yes
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Max focal length 35 mm
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Zoom range 1x
#10

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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Length n/a
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Min focal length 70 mm
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Diameter n/a
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Weight 130 g
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Auto focus Yes
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Max focal length 70 mm
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Zoom range 1x