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Focus motor
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Pentax Lenses that have a generic focus motor, are 24mm or wider and 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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Fixed aperture n/a
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Min focal length 21 mm
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Zoom range 1x
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Focus motor Generic motor
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Diameter 64 mm
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Fisheye No
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Length 25 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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Aperture f/3.5
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Fixed aperture No
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Min focal length 18 mm
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Zoom range 7.5x
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Focus motor Generic motor
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Diameter 74 mm
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Fisheye No
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Length 76 mm
#3

Pentax SMC 06 15-45mm f/2.8

Pentax SMC 06 15-45mm f/2.8
 
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Fixed aperture
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The same maximum aperture at all focal lengths
 
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Small diameter
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50 mm
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Aperture f/2.8
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Fixed aperture Yes
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Min focal length 15 mm
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Zoom range 3x
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Focus motor Generic motor
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Diameter 50 mm
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Fisheye No
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Length 56 mm
#4

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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Fixed aperture No
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Min focal length 16 mm
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Zoom range 5.3x
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Focus motor Generic motor
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Diameter 78 mm
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Fisheye No
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Length 94 mm
#5

Pentax SMC HD DA 15mm f/4 ED AL

Pentax SMC HD DA 15mm f/4 ED AL
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Aperture f/4
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Fixed aperture n/a
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Min focal length 15 mm
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Zoom range 1x
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Focus motor Generic motor
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Diameter 64 mm
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Fisheye No
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Length 41 mm
#6

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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Aperture f/4
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Fixed aperture No
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Min focal length 18 mm
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Zoom range 2.8x
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Focus motor Generic motor
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Diameter 71 mm
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Fisheye No
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Length 41 mm
#7

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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Aperture f/3.5
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Fixed aperture No
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Min focal length 10 mm
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Zoom range 1.7x
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Focus motor Generic motor
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Diameter 69 mm
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Fisheye Yes
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Length 71 mm
#8

Pentax SMC DA 12-24mm f/4 ED AL

Pentax SMC  DA 12-24mm f/4 ED AL

"This is absolutely the lens I needed to round out my Pentax K10 camera gear." bhphotovideo.com

 
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Fixed aperture
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The same maximum aperture at all focal lengths
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Aperture f/4
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Fixed aperture Yes
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Min focal length 12 mm
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Zoom range 2x
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Focus motor Generic motor
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Diameter 84 mm
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Fisheye No
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Length 86 mm
#9

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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Aperture f/3.5
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Fixed aperture No
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Min focal length 18 mm
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Zoom range 3.1x
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Focus motor Generic motor
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Diameter 69 mm
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Fisheye No
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Length 69 mm
#10

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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Aperture f/2.8
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Fixed aperture No
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Min focal length 20 mm
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Zoom range 2x
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Focus motor Generic motor
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Diameter 71 mm
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Fisheye No
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Length 69 mm