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Wide aperture
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Camera
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Pentax K-7
Lens category
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Pentax K-7

Pentax K-7 Lenses made by Pentax for less than $700 that have a f/4 or faster aperture

#1

Pentax SMC HD DA 21mm f/3.2 AL

Pentax SMC HD DA 21mm f/3.2 AL
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Aperture f/3.2
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Diameter 64 mm
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Zoom range 1x
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Min focal length 21 mm
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Max focal length 21 mm
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Weight 119 g
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Length 25 mm
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Auto focus Yes
#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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Diameter 64 mm
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Zoom range 1x
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Min focal length 40 mm
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Max focal length 40 mm
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Weight 91 g
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Length 15 mm
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Auto focus Yes
#3

Pentax SMC HD Pentax-DA 55-300mm f/4-5.8 ED WR

Pentax SMC HD Pentax-DA 55-300mm f/4-5.8 ED WR
 
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Great telephoto lens
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300 mm
 
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Great zoom range
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5.5x
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Aperture f/4
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Diameter 71 mm
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Zoom range 5.5x
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Min focal length 55 mm
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Max focal length 300 mm
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Weight 466 g
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Length 112 mm
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Auto focus Yes
#4

Pentax SMC DA 18-135mm f/3.5-5.6 ED AL DC WR

Pentax SMC  DA 18-135mm f/3.5-5.6 ED AL DC WR
 
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Great zoom range
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7.5x
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Aperture f/3.5
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Diameter 74 mm
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Zoom range 7.5x
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Min focal length 18 mm
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Max focal length 135 mm
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Weight 405 g
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Length 76 mm
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Auto focus Yes
#5

Pentax SMC DA 50mm f/1.8

Pentax SMC  DA 50mm f/1.8
 
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Wide aperture
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f/1.8
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Aperture f/1.8
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Diameter 64 mm
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Zoom range 1x
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Min focal length 50 mm
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Max focal length 50 mm
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Weight 122 g
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Length 38 mm
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Auto focus Yes
#6

Pentax SMC DAA 18-270mm f/3.5-6.3 ED SDM

Pentax SMC  DAA 18-270mm f/3.5-6.3 ED SDM
 
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Great zoom range
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15x
 
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Great telephoto lens
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270 mm
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Aperture f/3.5
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Diameter 76 mm
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Zoom range 15x
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Min focal length 18 mm
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Max focal length 270 mm
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Weight 453 g
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Length 89 mm
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Auto focus Yes
#7

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." 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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Zoom range 1x
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Min focal length 50 mm
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Max focal length 50 mm
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Weight 221 g
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Length 38 mm
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Auto focus Yes
#8

Pentax SMC HD DA 16-85mm f/3.5-5.6 ED DC WR

Pentax SMC HD DA 16-85mm f/3.5-5.6 ED DC WR
 
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Great zoom range
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5.3x
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Aperture f/3.5
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Diameter 78 mm
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Zoom range 5.3x
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Min focal length 16 mm
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Max focal length 85 mm
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Weight 488 g
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Length 94 mm
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Auto focus Yes
#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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Diameter 64 mm
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Zoom range 1x
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Min focal length 35 mm
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Max focal length 35 mm
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Weight 125 g
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Length 46 mm
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Auto focus Yes
#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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Diameter 81 mm
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Zoom range 1x
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Min focal length 100 mm
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Max focal length 100 mm
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Weight 340 g
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Length 64 mm
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Auto focus Yes