Wide angle focal length
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Camera
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Pentax K-5
Lens category
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Pentax K-5

Pentax K-5 Landscape lenses for less than $400 that are 24mm or wider

#1

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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Supports autofocus
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Easier to use
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Min focal length 18 mm
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Aperture f/3.5
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Auto focus Yes
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Diameter 74 mm
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Fixed aperture No
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Max focal length 135 mm
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Zoom range 7.5x
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Length 76 mm
#2

Pentax SMC HD DA 18-50mm f/4-5.6 DC WR RE

Pentax SMC HD DA 18-50mm f/4-5.6 DC WR RE
 
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Supports autofocus
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Easier to use
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Min focal length 18 mm
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Aperture f/4
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Auto focus Yes
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Diameter 71 mm
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Fixed aperture No
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Max focal length 50 mm
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Zoom range 2.8x
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Length 41 mm
#3

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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Supports autofocus
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Easier to use
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Min focal length 17 mm
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Aperture f/4
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Auto focus Yes
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Diameter 76 mm
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Fixed aperture Yes
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Max focal length 70 mm
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Zoom range 4.1x
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Length 94 mm
#4

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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Supports autofocus
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Easier to use
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Min focal length 18 mm
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Aperture f/3.5
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Auto focus Yes
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Diameter 69 mm
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Fixed aperture No
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Max focal length 55 mm
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Zoom range 3.1x
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Length 69 mm
#5

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

Rokinon 10mm f/2.8 ED AS NCS CS Pentax K
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Min focal length 10 mm
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Aperture f/2.8
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Auto focus No
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Diameter 86 mm
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Fixed aperture n/a
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Max focal length 10 mm
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Zoom range 1x
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Length 78 mm
#6

Rokinon 14mm f/2.8 IF ED UMC Pentax K

Rokinon 14mm f/2.8 IF ED UMC Pentax K
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Min focal length 14 mm
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Aperture f/2.8
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Auto focus No
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Diameter 87 mm
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Fixed aperture n/a
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Max focal length 14 mm
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Zoom range 1x
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Length 95 mm
#7

Rokinon 16mm f/2 ED AS UMC CS Pentax K

Rokinon 16mm f/2 ED AS UMC CS Pentax K
 
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Wide aperture
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f/2
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Min focal length 16 mm
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Aperture f/2
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Auto focus No
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Diameter 83 mm
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Fixed aperture n/a
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Max focal length 16 mm
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Zoom range 1x
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Length 88 mm
#8

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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Min focal length 10 mm
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Aperture f/2.8
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Auto focus No
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Diameter 86 mm
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Fixed aperture n/a
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Max focal length 10 mm
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Zoom range 1x
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Length 105 mm
#9

Samyang 14mm f/2.8 IF ED UMC Pentax K

Samyang 14mm f/2.8 IF ED UMC Pentax K
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Min focal length 14 mm
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Aperture f/2.8
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Auto focus No
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Diameter 87 mm
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Fixed aperture n/a
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Max focal length 14 mm
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Zoom range 1x
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Length 95 mm
#10

Sigma 10-20mm f/3.5 EX DC HSM Pentax K

Sigma 10-20mm f/3.5 EX DC HSM Pentax K

"This lens is absolutely great for scenery and landscape. I did a lot of research for a good wide-angle lens and for the price this lens was definitely my favorite." bhphotovideo.com

 
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Fixed aperture
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The same maximum aperture at all focal lengths
 
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Supports autofocus
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Easier to use
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Min focal length 10 mm
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Aperture f/3.5
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Auto focus Yes
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Diameter 86 mm
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Fixed aperture Yes
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Max focal length 20 mm
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Zoom range 2x
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Length 89 mm