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Canon EF (Full-frame) Lenses made by Sigma that are 18mm or wider

#1

Sigma 8mm f/3.5 EX DG Circular Canon EF

Sigma 8mm f/3.5 EX DG Circular Canon EF

"This is a must have if you are a serious photographer. The images are great!" bhphotovideo.com

 
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Fisheye
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Extremely wide circular images
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Min focal length 8 mm
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Diameter 74 mm
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Fisheye Yes
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Zoom range 1x
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Aperture f/3.5
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Weight 400 g
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Length 69 mm
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Max focal length 8 mm
#2

Sigma 15mm f/2.8 EX DG Canon EF

Sigma 15mm f/2.8 EX DG Canon EF

"For photographing skydiving (Tandem Jump students) this lens is perfect." bhphotovideo.com

 
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Fisheye
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Extremely wide circular images
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Min focal length 15 mm
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Diameter 74 mm
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Fisheye Yes
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Zoom range 1x
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Aperture f/2.8
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Weight 332 g
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Length 71 mm
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Max focal length 15 mm
#3

Sigma 12-24mm f/4.5-5.6 DG HSM II Canon EF

Sigma 12-24mm f/4.5-5.6 DG HSM II Canon EF
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Min focal length 12 mm
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Diameter 84 mm
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Fisheye No
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Zoom range 2x
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Aperture f/4.5
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Weight 0.7 kg
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Length 119 mm
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Max focal length 24 mm