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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Silent focus motor
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Silent and fast
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Aperture f/2.4
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Min focal length 35 mm
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Focus motor Generic motor
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Weight 124 g
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Auto focus Yes
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Max focal length 35 mm
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Length 45 mm
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Diameter 63 mm
#-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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Silent focus motor
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Silent and fast
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Aperture f/1.4
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Min focal length 50 mm
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Focus motor Generic motor
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Weight 222 g
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Auto focus Yes
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Max focal length 50 mm
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Length 38 mm
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Diameter 64 mm
#-3

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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Silent focus motor
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Silent and fast
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Aperture f/1.8
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Min focal length 31 mm
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Focus motor Generic motor
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Weight 345 g
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Auto focus Yes
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Max focal length 31 mm
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Length 69 mm
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Diameter 66 mm
#-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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Silent focus motor
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Silent and fast
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Aperture f/1.8
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Min focal length 77 mm
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Focus motor Generic motor
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Weight 272 g
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Auto focus Yes
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Max focal length 77 mm
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Length 64 mm
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Diameter 48 mm
#-5

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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Silent focus motor
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Silent and fast
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Aperture f/1.4
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Min focal length 55 mm
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Focus motor Pentax SDM
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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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Length n/a
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Diameter n/a
#-6

Pentax SMC DA 70mm f/2.4

Pentax SMC  DA 70mm f/2.4

"A light-weight, tough short tele lens, great for portrait work. Lens is compact and built like a tank."

 
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Silent focus motor
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Silent and fast
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Aperture f/2.4
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Min focal length 70 mm
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Focus motor Generic motor
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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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Length 26 mm
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Diameter 63 mm
#-7

Pentax SMC FA 43mm f/1.9

Pentax SMC  FA 43mm f/1.9

"So far the results have been great. Nice and sharp. Great bokeh. Excellent lighted build quality."

 
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Silent focus motor
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Silent and fast
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Aperture f/1.9
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Min focal length 43 mm
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Focus motor Generic motor
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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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Length 28 mm
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Diameter 63 mm
#-8

Pentax SMC DA 50mm f/1.8

Pentax SMC  DA 50mm f/1.8
 
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Silent focus motor
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Silent and fast
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Aperture f/1.8
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Min focal length 50 mm
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Focus motor Generic motor
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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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Length n/a
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Diameter n/a
#-9

Zeiss 85mm f/1.4 ZK Planar T* Pentax-k

Zeiss 85mm f/1.4 ZK Planar T* Pentax-k
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Aperture f/1.4
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Min focal length 85 mm
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Focus motor None
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Weight 0.6 kg
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Auto focus No
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Max focal length 85 mm
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Length 86 mm
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Diameter 77 mm
#-10

Pentax SMC 35mm f/2 FA AL

Pentax SMC 35mm f/2 FA AL
 
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Silent focus motor
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Silent and fast
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Aperture f/2
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Min focal length 35 mm
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Focus motor Generic motor
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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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Length 46 mm
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Diameter 64 mm