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Sigma EX 12-24/4.5-5.6 DG HSM II for Canon

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Sigma EX 12-24/4.5-5.6 DG HSM II for Canon

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Sigma EX 12-24/4.5-5.6 DG HSM II for Canon
$899.00

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Sigma 12-24mm f4.5-5.6 II DG HSM Lens Ultra wide angle zoom lens compatible with digital SLR cameras with 35mm full frame image sensor.

This ultra wide angle zoom lens incorporates the latest optical design provides superior performance. FLD (“F” Low Dispersion) glass elements, which have performance equal to fluorite, and SLD (Special Low Dispersion) glass elements provide excellent correction of color aberration. Asperical lenses give advanced performance with a compact and lightweight construction. The Super Multi-Layer Coating reduces flare and ghosting. High image quality is assured throughout the entire zoom range. Incorporation of HSM ensures quiet and high speed autofocus as well as full-time manual focus capability. This lens has superior peripheral brightness and provides sharp and high contrast images even at the maximum apertures.

 

Ultra wide angle zoom lens compatible with digital SLR cameras with a 35mm full frame image sensor.
Sigma designed and produced the first wide-angle zoom lens, the “zoom gamma 21-35mm F3.5-4”, in 1979. Sigma has since introduced a number of wide angle zoom lenses. The SIGMA 12-24mm F4.5-5.6 II DG HSM is the successor of the SIGMA 12-24mm F4.5-5.6 EX DG ASPHERICAL / HSM which was launched in November 2003. This ultra wide angle zoom lens is ideal for digital SLRs with a 35mm full frame image sensor and incorporates the latest optical design.

 

 

 

Superior image quality
The ultra wide angle zoom lens is possible due to large diameter of the front lens. Four FLD (“F” Low Dispersion) glass elements, which have performance equal to fluorite, and one SLD (Special Low Dispersion) glass element provide excellent correction of color aberration. Three glass mold elements and one hybrid aspherical compensate for all types of aberration and ensure high optical performance.
* FLD glass is the highest level low dispersion glass available with extremely high light transmission. This optical glass has a performance equal to fluorite glass which has a low refractive index and low dispersion compared to current optical glass. It also benefits from high anomalous dispersion. These characteristics give excellent correction for residual chromatic aberration (secondary spectrum) which cannot be corrected by ordinary optical glass and ensures high definition and high contrast images.
Super Multi-Layer Coating
Due to the ultra wide angle, the front of this lens is very large. Sigma’s Super Multi-Layer Coating reduces flare and ghosting which could otherwise create problems when extraneous light hits the lens’ front element. It also provides sharp and high contrast images throughout the entire zoom range.
Superior peripheral brightness
The design of front lens group minimizes light fall off and increases peripheral brightness.
Exaggerated perspective
The wide-angle of view produces striking images with exaggerated perspective, enabling photographers to emphasize the subject.
Compact construction
Incorporation of four aspherical lenses provides a compact construction with a diameter of 85mm (3.3”), overall length of 120.2mm (4.7”) and weight of 670g (23.6oz.). The compact construction makes this lens ideal for travel photography.
Quiet and high speed autofocus
Incorporation of HSM (Hyper Sonic Motor) ensures quiet and high speed autofocus, while allowing full-time manual focus override.
Inner focusing system
This lens incorporates an inner focusing system, which eliminates front lens rotation which also minimizes fluctuation of aberration caused by the focusing system.
Petal-type hood
This lens is equipped with a Petal-type hood to block out extraneous light and reduce internal reflections.

 

 

 

Detailed specifications of the Sigma 12-24mm f4.5-5.6 EX DG Aspherical HSM Lens

Lens Construction 17 Elements in 13 Groups
Angle of View 122 - 84.1 degrees
Number of Diaphragm Blades 6 Blades
Minimum Aperture F22
Minimum Focusing Distance 28cm / 11in.
Maximum Magnification @
Dimensions Diameter 85mm×Length 120.2mm / 3.3in.×4.7in.
Weight 670g (23.6oz.)
Bitmap
@
Corresponding AF Mounts SIGMA,
NIKON (D),
CANON
 

      A 12-month mechanical malfunction warranty applies to the lens 

   

      This warranty only covers mechanical malfunctions/ manufacturing faulties. Personal damage to the phone or phone accessories will not be covered under the warranty.

     

      It is a Return-to-Base (RTB) warranty which means all faulty items must be returned to us for assessment. The original receipt/invoice must be provided as a proof of purchase.

   

      Within the warranty period, if the phone has any mechanical malfunctions, we will provide repairs. A replacement will be offered if we are unable to repair the phone. A refund will be only provided if we could not repair the phone or offer a replacement. Our warranties will be covered by our own service department when possible.

     

     To return a phone, the customer needs to cover his/her postage and we will cover ours. However, if there are no mechanical malfunctions or personal damages found in the phone or phone accessories, the customer will need to cover postage for both. A faulty item must be returned within 7 days upon a mutual agreement of return by both parties.

 

 

 

 


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