Sigma 24mm f/1.8 EX Aspherical DG DF Macro AutoFocus Wide Angle Lens with Hood for Pentax AF Cameras - USA Warranty

SKU: SG2418PXAF MFR: 432109
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About the Sigma 24mm F1.8

Sigma 24mm f1.8 EX DG Aspherical Macro is one of the EX Series lenses. This lens has a fast F1.8 maximum aperture with macro focusing capability of minimum focusing down to 18cm/7.1inches (reproduction ratio 1:2.7). The iris diaphragm has 9 diaphragm blades to obtain beautiful out of focus image. It incorporates the floating focus system and uses two aspherical lens elements for minimizing distortion and spherical aberration and astigmatism. Internal focus system eliminates front lens rotation, thus allowing the use of a Perfect Hood and the easy use of polarizing filters. The lens incorporates non-vignetting optical construction, in order to obtain adequate peripheral brightness even at open aperture. This is desirable for digital cameras. The lens also incorporates dual-focus mechanism. It is easy to hold the lens, since focusing ring does not rotate during auto-focus, and 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.

Sigma 24mm F1.8 Includes

  • 1 Year International Warranty plus 3 Year Sigma U.S.A. Extended Warranty (Total 4 Yrs)
  • Front & Rear Lens Caps
  • Lens Hood
  • Pouch Case

Summary of Customer Reviews

Customers most agreed on the following attributes:
Durable (7) , Consistent output (5) , Rugged (5) , Strong construction (5) , Easily interchangeable (4) , Lightweight (4) , Fast / accurate auto-focus (3) , Nice bokeh (3)
Slow focus (4)
Best Uses:
Landscape/scenery (5) , Low light (4) , Macro photography (3)
Reviewer Profile:
Photo enthusiast (5) , Enthusiast (2) , Pro photographer (2) , Professional (2) , Semi-pro photographer (1)

Sigma 24mm F1.8 Specifications

Construction 9 groups /10 elements
Angle of view 84.1°
F stop range 22
Closest Focusing Distance 18cm / 7.1"
Maximum Magnification 1:2.7
Filter Size 77mm
Dimensions (Length x Diameter) 83 x 80mm / 3.3 x 3.1"
Full Extended Length 85mm / 3.3 "
Weight 485g / 17.1oz.
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