8 maximum aperture which is ideal for Digital SLR cameras.

Macro capability This lens is capable of Macro photography with minimum shooting distance of 20cm 7.

8 inch reproduction ratio 1 2.

9 and angle of view is 75.

4.

You can take picture not only the subject but also the surrounding scenery.

Large front element and Super wideangle The lens has an advanced optical construction in order to obtain adequate peripheral brightness with open aperture.

Also the iris diaphragm has 9 diaphragm blades to obtain beautiful out of focus images in the foreground and background.

Handling The lens incorporates a DualFocus DF mechanism.

It is easy to hold the lens since the focusing ring does not rotate during autofocus yet it provides adequate focusing torque of the focusing ring during manual focusing of the lens.

Also this also allows the use of a Petaltype Hood and the easy use of a polarizing filter.

Aspherical lens It incorporates a floating focus system and uses two aspherical lens elements for minimizing distortion aberration and astigmatism.

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Features Macro capability Large front element and Super wideangle DualFocus DF mechanism Floating focus system .

Specifications Lens Construction 10 Elements in 9 Groups Angle of View 75.

4 degrees Number of Diaphragm Blades 9 Blades Minimum Aperture F22 Minimum Focusing Distance 20cm/7.

9 in.

Maximum Magnification 1 2.

9 Filter Size Diameter 77mm Dimensions Diameter 83.

6mm X Length 82.

5mm3.

3 in.

X 3.

2 in.

Weight 500g/17.

6 oz.

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Package content Sigma 28mm F1.

8 EX DG ASPHERICAL MACRO Nikon UltraWide Wide Lens .

Warranty 30 Day Warranty.

Warranty covers manufacturing defects only.

This product is not covered for misuse of product or damage due to mishandling.

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