Sigma 50mm f/1.4 EX DG HSM Autofocus Lens for Canon

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Item: 319694
Manufacture: Sigma
Condition: New
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Price: $569.00 $799.99
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The Sigma 50mm ƒ/1.4 was designed to accommodate the 35mm film frame, and is available for all SLR camera mounts: Canon, Nikon, Sony/Minolta, Pentax and Four-Thirds. On Canon sub-frame sensor bodies the lens provides an effective field of view of 80mm; on Nikon the field of view is effectively 75mm; and on Four-Thirds subframe bodies, the field of view is effectively 100mm.

The Sigma 50mm ƒ/1.4 is available now for a street price of under $500.

For the most part, the Sigma 50mm ƒ/1.4 is a sharp lens. However, there are some very notable exceptions. Let's take a closer look.

On the sub-frame Canon 20D, when shot wide open at ƒ/1.4 the lens produces images that are just slightly soft - between 2 and 3 blur units across the frame. Stopped down to ƒ/2 and sharpness improves dramatically, now showing results between 1 and 2 blur units, and further improvement shows at ƒ/2.8. Image sharpness peaks at ƒ/4 and stays there until ƒ/11, where we see numbers that still stay below 2 blur units. At ƒ/16 we still note very good performance, with an average performance of around 2 blur units.

Image Circle 35mm
Type Standard Prime
Focal Length 50mm
APS Equivalent 1.5x: 75mm; 1.6x: 80mm
Max Aperture ƒ/1.4
Min Aperture ƒ/16
Diaphragm Blades 9 (rounded)
Lens Construction 8 elements in six groups, 1 aspherical lens element
Diagonal Angle of View(Based on image circle) 47 degrees
Focus Details HSM, with full-time manual focus override
Front Element Rotation No
Zoom System n/a
Closest Focus 45cm / 1.48 ft.
Magnification Ratio 0.14x / 1:7.4
Filter Size 77mm

• Front Lens Cap
• Rear Lens Cap
• Lens Hood
• Lens Case