Product Description
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/7.1 inches (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.
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$549.00 & eligible for FREE Super Saver Shipping on orders over $25. Details |
| as of Tue, 08 Jan 2013 16:23:21 GMT ***Remember, deals price on this item for sale just for limited time*** | |
Product Details
- Brand: Sigma
- Model: B00005RKSP
- Dimensions: 1.80 pounds
Features
- Designed for use with full frame digital cameras. May also be used with smaller APS-c size sensors with a corresponding effective increase in focal length to about 35mm with most cameras
- Two Aspherical glass elements offer correction for distortion
- Floating internal focus system enables a minimum shooting distance of 7.1 inches
- Dual Focus system allows for easy manual override of the autofocus when difficult subjects are encountered
- 9 Blade diaphragm provides pleasant out of focus highlights
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