Sony 20mm f/2.8 SAL-20F28

 
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Lens Specifications
Name Sony SAL-20F28 20mm f/2.8
Image Circle 35mm
Type Wide Prime
Focal Length 20mm
APS Equivalent 30mm
Max Aperture f/2.8
Min Aperture f/22
Diaphragm Blades 7
Lens Construction 10 elements in 9 groups
Diagonal Angle of View(Based on image circle) 94 degrees
Focus Details Rear focusing
Front Element Rotation No
Zoom System n/a
Closest Focus 25cm / 9.8 in.
Magnification Ratio 0.13x / 1:7.7
Filter Size 72mm
Dimensions(Length x Diameter) 53.5mm x 78mm / 2.1 in. x 3.1 in.
Weight 285g / 10.1 oz
Notes Included Accessories: SH0013 Lens Hood
Typical Online Price US$680 (Available Oct. 2006)