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Sigma 20mm F/1.8 EX DF RF Aspherical Wide Angle Prime Lens for Minolta and Sony SLR Camera



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For Minolta and Sony SLR
  • Front and rear caps
  • Lens hood
  • Case
  • 1 year worldwide warranty and 3 years extended USA warranty
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Product description

Style name:For Minolta and Sony SLR

Sigma 20mm f/1.8 EX DG aspherical RF is one of several EX series lenses. It is the first 20mm super wide angle lens in the world with a large aperture of f/1.8 and angle of view 94.5 degrees. It has macro focusing capability with a minimum focusing distance of 20cm (reproduction ratio 1:4). The iris diaphragm has 9 diaphragm blades to obtain beautiful out of focus image. It incorporates an aspherical lens element in the front as well as rear lens groups, to minimize distortion, spherical aberration and astigmatism. The lens has non-vignetting optical construction, in order to obtain adequate peripheral brightness with open aperture. This is especially desirable for digital cameras. The lens incorporates a rear focus system eliminating front lens rotation, thus allowing the use of a perfect hood and easy use of polarizing filters. The lens also incorporates dual-focus mechanism. It is easy to hold the lens, since the focusing ring does not rotate during auto-focus, yet it provides adequate focusing torque of the focusing ring during manual focusing of the lens. The lens materials used in this lens are lead and arsenic free ecological glass.


Product information

Style: For Minolta and Sony SLR
Technical Details
BrandSigma
Model411306
Model Year2007
Item Weight522 g
Product Dimensions9 x 8.9 x 8.9 cm
Item model number411306
Included ComponentsLens Hood, Front & Rear Lens Caps, Pouch
Has Image StabilizationNo
Optical Zoom1 X
Min Aperture22
Min Focal Length20 Millimeters
Batteries IncludedNo
Batteries RequiredNo
Lens TypePrime lens
Real Angle Of View94.5 Degrees
Has Auto FocusYes
Includes Rechargable BatteryNo
  
Additional Information
ASINB00005RKSM
Customer Reviews Be the first to review this item
Date First Available17 March 2012
  
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Most helpful customer reviews on Amazon.com

Amazon.com: 3.8 out of 5 stars 64 reviews
T. Khetia
5.0 out of 5 starsAmazingly wide and superfast!
3 July 2013 - Published on Amazon.com
Style: For Minolta and Sony SLR|Verified Purchase
3 people found this helpful.
Anil Bakshi
5.0 out of 5 starsWonderful !!!!
6 December 2017 - Published on Amazon.com
Verified Purchase
RWS
5.0 out of 5 starsTerrific used lens
12 March 2016 - Published on Amazon.com
Verified Purchase
2 people found this helpful.
Yiannis
4.0 out of 5 starspretty good results
19 November 2016 - Published on Amazon.com
Verified Purchase
2 people found this helpful.
J. Wurth
4.0 out of 5 starsA decent lens for the price. I actually tested ...
7 April 2016 - Published on Amazon.com
Verified Purchase
One person found this helpful.
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