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Sigma Super Wide Angle Lens

Sigma Super Wide Angle Lens - 12-24mm F4.5-5.6

Sigma Super Wide Angle Lens - 12-24mm F4.5-5.6

This Sigma super wide angle lens signalled the start of a new breed of lenses. Glass designed specifically for Digital SLR’s with a crop factor of 1.5 or 1.6x.

Until this release, users of DSLR’s have had to make do with a maximum of 16mm focal length unless they were prepared to fork out a lot of money on a specialised fisheye lens.

More and more manufacturers started producing lines of lenses that concentrate on the "super-wide" end of the spectrum and this Sigma super wide angle lens is no exception.

Sigma Japan announced the 12 - 24 mm F4.5-5.6 EX DG HSM as a lens that is aimed at providing a good wide angle range for digital SLR’s. Also, an ultra wide angle for film SLR’s. On Sigma’s original SD9 digital SLR (with a 1.7x crop) this lens would provide the same field of view as a 20-41 mm lens. On the Canon EOS-80D/7D series, this would be approximately 19-38 mm. This lens is available in Sigma, Canon, Nikon, Pentax (non-HSM) and Minolta (non-HSM) mounts. It has an estimated Japanese list price of 99,000 YEN ($689, £340 or €450).

Technical Specifications

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    Lens Construction - 16 Elements in 12 Groups
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    Angle of View - 122 - 84.1 degrees
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    Number of Diaphragm Blades - 6 Blades
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    Minimum Aperture - F22
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    Minimum Focusing Distance - 28cm / 11 in.
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    Maximum Magnification - 1:7.1
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    Filter Size - Rear Type (Gelatin Filter)
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    Dimensions - Diameter 87mm X Length 102.5mm 3.4 in. x 3.9 in.
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    Weight - 600g / 21.6 oz.
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    Corresponding AF Mounts - Sigma, Canon, Nikon, Minolta, Pentax

The appearance, specifications, and the like of the product are subject to change for improvement.

The Reviews

The reviews on this lens have been a mixed bunch. For the Canon and Nikon users, it doesn’t compare to their equivalents (Nikon AF-S DX Zoom-Nikkor 12-24mm f/4G IF-ED $425+) and (Canon EF-S 10-22mm f/3.5-4.5 USM $650) for quality and ease of use.

The Canon and Nikon lenses are smaller, faster (f/4), lighter, and take real filters. In addition, the Canon covers a wider angle and wider zoom range.

This Sigma is heavier, bigger, slower (max aperture F/5.6) and can only take gel filters attached to the rear. You can’t rotate a polarizer filter while it’s on the camera, nor can you use graduated filters with the Sigma super wide angle lens.

The bottom line is I would go for the Canon or Nikon if your budget can stretch to that, but for around $570, it is worth a look at as a strong alternative if budget is an issue.

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