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Pentax K Prime Lenses for less than $500

#1

Pentax SMC DA FA 100mm f/2.8 WR Macro

Pentax SMC  DA FA 100mm f/2.8 WR Macro

"It is light weight, very smooth, very sharp images" bhphotovideo.com

 
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Supports autofocus
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Easier to use
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Fisheye No
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Length 64 mm
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Auto focus Yes
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Min focal length 100 mm
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Aperture f/2.8
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Max focal length 100 mm
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Diameter 81 mm
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Weight 340 g
#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." bhphotovideo.com

 
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Wide aperture
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f/1.4
 
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Supports autofocus
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Easier to use
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Fisheye No
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Length 38 mm
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Auto focus Yes
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Min focal length 50 mm
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Aperture f/1.4
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Max focal length 50 mm
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Diameter 64 mm
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Weight 221 g
#3

Pentax SMC 35mm DA L f/2.4 AL

Pentax SMC 35mm DA L f/2.4 AL
 
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Supports autofocus
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Easier to use
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Fisheye No
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Length 46 mm
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Auto focus Yes
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Min focal length 35 mm
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Aperture f/2.4
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Max focal length 35 mm
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Diameter 64 mm
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Weight 125 g
#4

Pentax SMC DA 50mm f/1.8

Pentax SMC  DA 50mm f/1.8
 
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Supports autofocus
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Easier to use
 
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Wide aperture
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f/1.8
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Fisheye No
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Length 38 mm
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Auto focus Yes
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Min focal length 50 mm
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Aperture f/1.8
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Max focal length 50 mm
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Diameter 64 mm
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Weight 122 g
#5

Pentax SMC D FA 50mm f/2.8 Macro

Pentax SMC  D FA 50mm f/2.8 Macro

"As expected this is a fast, versatile lens for taking macro photographs." bhphotovideo.com

 
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Supports autofocus
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Easier to use
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Fisheye No
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Length 66 mm
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Auto focus Yes
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Min focal length 50 mm
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Aperture f/2.8
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Max focal length 50 mm
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Diameter 66 mm
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Weight 264 g
#6

Pentax SMC HD DA 21mm f/3.2 AL

Pentax SMC HD DA 21mm f/3.2 AL
 
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Supports autofocus
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Easier to use
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Fisheye No
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Length 25 mm
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Auto focus Yes
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Min focal length 21 mm
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Aperture f/3.2
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Max focal length 21 mm
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Diameter 64 mm
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Weight 119 g
#7

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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Supports autofocus
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Easier to use
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Fisheye No
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Length 15 mm
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Auto focus Yes
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Min focal length 40 mm
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Aperture f/2.8
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Max focal length 40 mm
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Diameter 64 mm
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Weight 91 g
#8

Pentax SMC HD DA 70mm f/2.4

Pentax SMC HD DA 70mm f/2.4
 
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Supports autofocus
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Easier to use
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Fisheye No
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Length 25 mm
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Auto focus Yes
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Min focal length 70 mm
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Aperture f/2.4
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Max focal length 70 mm
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Diameter 64 mm
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Weight 130 g
#9

Rokinon 8mm f/3.5 Pentax K

Rokinon 8mm f/3.5 Pentax K
 
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Fisheye
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Extremely wide circular images
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Fisheye Yes
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Length 76 mm
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Auto focus No
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Min focal length 8 mm
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Aperture f/3.5
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Max focal length 8 mm
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Diameter 75 mm
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Weight 414 g
#10

Samyang 10mm f/2.8 ED AS NCS CS Pentax K

Samyang 10mm f/2.8 ED AS NCS CS Pentax K
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Fisheye No
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Length 105 mm
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Auto focus No
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Min focal length 10 mm
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Aperture f/2.8
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Max focal length 10 mm
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Diameter 86 mm
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Weight 0.6 kg