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Lens category
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Pentax Lenses that have a f/1.8 or faster aperture

#1

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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Max focal length 50 mm
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Length 38 mm
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Diameter 64 mm
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Min focal length 50 mm
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Auto focus Yes
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Weight 222 g
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Zoom range 1x
#2

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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Max focal length 31 mm
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Length 69 mm
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Diameter 66 mm
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Min focal length 31 mm
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Auto focus Yes
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Weight 345 g
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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."

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Aperture f/1.8
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Max focal length 77 mm
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Length 64 mm
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Diameter 48 mm
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Min focal length 77 mm
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Auto focus Yes
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Weight 272 g
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Zoom range 1x
#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."

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Aperture f/1.4
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Max focal length 55 mm
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Length n/a
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Diameter n/a
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Min focal length 55 mm
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Auto focus Yes
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Weight 375 g
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Zoom range 1x
#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 n/a
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Diameter n/a
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Min focal length 50 mm
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Auto focus Yes
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Weight 122 g
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Zoom range 1x
#6

Pentax SMC DA 50mm f/1.8 Sigma-sa

Placeholder
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Aperture f/1.8
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Max focal length 50 mm
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Length n/a
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Diameter n/a
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Min focal length 50 mm
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Auto focus Yes
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Weight 122 g
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Zoom range 1x
#7

Pentax SMC DA 50mm f/1.8 Four-thirds

Placeholder
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Aperture f/1.8
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Max focal length 50 mm
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Length n/a
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Diameter n/a
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Min focal length 50 mm
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Auto focus Yes
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Weight 122 g
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Zoom range 1x
#8

Pentax SMC FA 77mm f/1.8 Four-thirds

Placeholder
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Aperture f/1.8
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Max focal length 77 mm
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Length n/a
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Diameter n/a
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Min focal length 77 mm
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Auto focus Yes
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Weight 269 g
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Zoom range 1x
#9

Pentax SMC 55mm f/1.4 DA* SDM Four-thirds

Placeholder
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Aperture f/1.4
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Max focal length 55 mm
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Length n/a
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Diameter n/a
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Min focal length 55 mm
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Auto focus Yes
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Weight 375 g
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Zoom range 1x
#10

Pentax SMC 55mm f/1.4 DA* SDM Sigma-sa

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