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Lens category
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Type

Pentax Zoom Lenses

#1

Pentax SMC HD D FA* 70-200mm f/2.8 ED DC AW

Pentax SMC HD D FA* 70-200mm f/2.8 ED DC AW
 
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Fixed aperture
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The same maximum aperture at all focal lengths
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Fixed aperture Yes
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Aperture f/2.8
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Max focal length 200 mm
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Zoom range 2.9x
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Length 203 mm
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Min focal length 70 mm
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Weight 1.8 kg
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Diameter 92 mm
#2

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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Fixed aperture No
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Aperture f/3.5
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Max focal length 135 mm
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Zoom range 7.5x
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Length 76 mm
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Min focal length 18 mm
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Weight 405 g
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Diameter 74 mm
#3

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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Fixed aperture No
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Aperture f/3.5
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Max focal length 55 mm
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Zoom range 3.1x
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Length 69 mm
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Min focal length 18 mm
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Weight 230 g
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Diameter 69 mm
#4

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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Fixed aperture Yes
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Aperture f/4
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Max focal length 70 mm
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Zoom range 4.1x
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Length 94 mm
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Min focal length 17 mm
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Weight 485 g
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Diameter 76 mm
#5

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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Fixed aperture No
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Aperture f/4
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Max focal length 200 mm
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Zoom range 4x
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Length 79 mm
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Min focal length 50 mm
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Weight 286 g
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Diameter 69 mm
#6

Pentax SMC DA* 16-50mm f/2.8 ED SDM

Pentax SMC  DA* 16-50mm f/2.8 ED SDM

"Great construction, versatile and great image quality, especially the diaphragm closing a little more than 16mm focal length." bhphotovideo.com

 
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Fixed aperture
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The same maximum aperture at all focal lengths
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Fixed aperture Yes
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Aperture f/2.8
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Max focal length 50 mm
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Zoom range 3.1x
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Length 99 mm
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Min focal length 16 mm
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Weight 0.6 kg
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Diameter 84 mm
#7

Pentax SMC HD DA 20-40mm f/2.8-4 ED DC WR

Pentax SMC HD DA 20-40mm f/2.8-4 ED DC WR
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Fixed aperture No
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Aperture f/2.8
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Max focal length 40 mm
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Zoom range 2x
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Length 69 mm
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Min focal length 20 mm
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Weight 283 g
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Diameter 71 mm
#8

Pentax SMC 60-250mm f/4 ED DA* SDM

Pentax SMC 60-250mm f/4 ED DA* SDM

"I've used this lens now for about 1200 shots of lacrosse games taken in the evening/night under the lights, bright sun and cloudy days. Great resolution when the focus is spot on." bhphotovideo.com

 
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Fixed aperture
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The same maximum aperture at all focal lengths
 
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Great telephoto lens
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250 mm
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Fixed aperture Yes
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Aperture f/4
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Max focal length 250 mm
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Zoom range 4.2x
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Length 168 mm
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Min focal length 60 mm
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Weight 1 kg
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Diameter 81 mm
#9

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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Fixed aperture No
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Aperture f/4.5
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Max focal length 450 mm
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Zoom range 3x
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Length 242 mm
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Min focal length 150 mm
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Weight 2 kg
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Diameter 95 mm
#10

Pentax SMC DA* 50-135mm f/2.8 ED SDM

Pentax SMC  DA* 50-135mm f/2.8 ED SDM

"Great lens for taking pictures of the kids, fast, smooth zoom and I don't have to be in their face to get a shot, very sharp pictures..." bhphotovideo.com

 
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Fixed aperture
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The same maximum aperture at all focal lengths
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Fixed aperture Yes
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Aperture f/2.8
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Max focal length 135 mm
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Zoom range 2.7x
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Length 137 mm
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Min focal length 50 mm
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Weight 0.7 kg
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Diameter 76 mm