Lens category
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Lens mount
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Type

Pentax K Zoom Lenses

#1

Sigma 50-500mm f/4.5-6.3 APO DG OS HSM Pentax K

Sigma 50-500mm f/4.5-6.3 APO DG OS HSM Pentax K
 
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Great telephoto lens
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500 mm
 
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More advanced image stabilization
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Sigma OS
 
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Great zoom range
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10x
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Zoom range 10x
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Fixed aperture No
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Max focal length 500 mm
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Weight 2 kg
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Fisheye No
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Image stabilization Sigma OS
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Length 218 mm
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Diameter 104 mm
#2

Pentax SMC DA 18-55mm f/3.5-5.6 AL WR

Pentax SMC DA 18-55mm f/3.5-5.6 AL WR

"This lens is workhorses, very nice contrast, fast autofocus, WR is very nice, just like water proof, I took alot pictures during raining, white water rafting, biking." bhphotovideo.com

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Zoom range 3.1x
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Fixed aperture No
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Max focal length 55 mm
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Weight 230 g
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Fisheye No
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Image stabilization None
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Length 69 mm
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Diameter 69 mm
#3

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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Zoom range 15x
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Fixed aperture No
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Max focal length 270 mm
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Weight 453 g
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Fisheye No
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Image stabilization None
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Length 89 mm
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Diameter 76 mm
#4

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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Zoom range 5.5x
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Fixed aperture No
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Max focal length 300 mm
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Weight 466 g
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Fisheye No
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Image stabilization None
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Length 112 mm
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Diameter 71 mm
#5

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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Zoom range 7.5x
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Fixed aperture No
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Max focal length 135 mm
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Weight 405 g
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Fisheye No
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Image stabilization None
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Length 76 mm
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Diameter 74 mm
#6

Pentax SMC DA 10-17mm f/3.5-4.5 ED

Pentax SMC  DA 10-17mm f/3.5-4.5 ED

"I just love this lense! Sharp, exact focus on the k10 and superbly build. " bhphotovideo.com

 
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Fisheye
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Extremely wide circular images
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Zoom range 1.7x
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Fixed aperture No
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Max focal length 17 mm
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Weight 320 g
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Fisheye Yes
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Image stabilization None
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Length 71 mm
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Diameter 69 mm
#7

Pentax SMC DA 50-200mm f/4-5.6 ED WR

Pentax SMC  DA 50-200mm f/4-5.6 ED WR

"This lens is a great fast focusing, sharp lens. I have been using this lens to take bird photos for the last few weeks and it does a marvelous job. The greatest advantage of this zoom is its size. It breaks down to being only a 1/4 inch longer than my 18-55 zoom kit lens. I also like that is allows manual focus with AF on." bhphotovideo.com

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Zoom range 4x
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Fixed aperture No
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Max focal length 200 mm
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Weight 286 g
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Fisheye No
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Image stabilization None
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Length 79 mm
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Diameter 69 mm
#8

Pentax SMC HD D FA 150-450mm f/4.5-5.6 DC AW

Pentax SMC HD D FA 150-450mm f/4.5-5.6 DC AW
 
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Great telephoto lens
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450 mm
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Zoom range 3x
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Fixed aperture No
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Max focal length 450 mm
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Weight 2 kg
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Fisheye No
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Image stabilization None
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Length 242 mm
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Diameter 95 mm
#9

Pentax SMC DA 17-70mm f/4 AL SDM

Pentax SMC  DA 17-70mm f/4 AL SDM

"Great lens. Renders sharp images with wonderful colors" bhphotovideo.com

 
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Fixed aperture
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The same maximum aperture at all focal lengths
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Zoom range 4.1x
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Fixed aperture Yes
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Max focal length 70 mm
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Weight 485 g
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Fisheye No
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Image stabilization None
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Length 94 mm
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Diameter 76 mm
#10

Sigma 18-300mm f/3.5-6.3 DC MACRO HSM Contemporary Pentax K

Sigma 18-300mm f/3.5-6.3 DC MACRO HSM Contemporary Pentax K
 
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Great zoom range
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16.7x
 
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Great telephoto lens
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300 mm
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Zoom range 16.7x
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Fixed aperture No
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Max focal length 300 mm
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Weight 0.6 kg
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Fisheye No
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Image stabilization None
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Length 102 mm
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Diameter 79 mm