• 07-18-2006, 10:31 AM
    Photo-John
    1 Attachment(s)
    Sigma MACRO 70mm F2.8 EX DG Lens - Product Announcement
    Sigma Corporation is pleased to announce the launch of the new MACRO 70mm F2.8 EX DG lens.


    MSRP: $570.00
    <ul><li>Special Low Dispersion (SLD) lens and two high refractive index SLD lenses provide excellent correction for all types of aberrations

    <li>Super multi-layer lens coating reduces flare and ghosting

    <li>Floating focus system provides extremely high optical performance from infinity to 1:1 Macro

    <li>Equivalent field of view to 105mm macro lens when used on a digital SLR camera with an APS-C size image sensor</ul>The Sigma Corporation is pleased to announce the launch of the new Macro 70mm F2.8 EX DG lens . This medium telephoto macro lens is ideal for both digital SLR cameras and 35mm film SLR cameras. The 70mm focal length gives an equivalent field of view as our popular 105mm macro lens when used on digital SLR cameras with an APS-C size image sensor.

    The design of this lens makes it suitable for taking pictures in all situations from infinity to 1:1 macro, both with natural light conditions or flash.

    A Special Low Dispersion (SLD) lens and two high refractive index SLD lenses provide excellent correction for all types of aberrations and produce an exceptional level of optical performance. Sigma's super multi-layer lens coating reduces flare and ghosting, and helps create a natural color balance.

    The floating focus system provides extremely high optical performance from infinity to 1:1 Macro.

    A 'Focus Limiter Switch' in incorporated on the lens, improving the speed and accuracy of autofocus by limiting the focus range. A screw-in lens hood is included for convenient use of circular polarizing filters.

    * Nikon and Pentax mount lens do not have an aperture ring, therefore depending on Camera model some functions may not work.

    Availability.
    For Sigma AF, Canon EOS and Nikon AF: August 2006.
    For Sony and Pentax AF: To be announced

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  • 07-18-2006, 10:46 AM
    Photo-John
    Sigma MACRO 70mm F2.8 EX DG Lens Specifications
    <table width=400 bgcolor="#999999" cellspacing="1"><tr><td><table width=400><tr><td colspan=2 bgcolor=#999999>Sigma MACRO 70mm F2.8 EX DG Lens Specs</td></tr><tr><td bgcolor=white width=40%>Focal Length</td><td bgcolor=white width=60%>70mm</td></tr><tr><td bgcolor=white width=40%>Minimum Aperture</td><td bgcolor=white width=60%>f/22</td></tr><tr><td bgcolor=white width=40%>Lens Construction</td><td bgcolor=white width=60%>10 Elements in 9 Groups</td></tr><tr><td bgcolor=white width=40%>Angle of View</td><td bgcolor=white width=60%>34.3 degrees</td></tr><tr><td bgcolor=white width=40%>Number of Diaphragm Blades</td><td bgcolor=white width=60%>9 Blades</td></tr><tr><td bgcolor=white width=40%>Minimum Focusing Distance</td><td bgcolor=white width=60%>25.7cm / 10.1 in.</td></tr><tr><td bgcolor=white width=40%>Maximum Magnification</td><td bgcolor=white width=60%>1:1</td></tr><tr><td bgcolor=white width=40%>Filter Size</td><td bgcolor=white width=60%>62mm</td></tr><tr><td bgcolor=white width=40%>Lens Hood</td><td bgcolor=white width=60%>Screw-in Type</td></tr><tr><td bgcolor=white width=40%>Dimensions</td><td bgcolor=white width=60%>Diameter 76mm X Length 95mm3.0 in. X 3.7 in.</td></tr><tr><td bgcolor=white width=40%>Weight</td><td bgcolor=white width=60%>525g / 18.5 oz.</td></tr><tr><td bgcolor=white width=40%>Corresponding AF Mounts</td><td bgcolor=white width=60%>SIGMA,CANON,NIKON,SONY,PENTAX</td></tr></table></td></tr></table>

    The appearance, specifications, and the like of the product are subject to change for improvement without notice.

    Vignetting will occur if the lens is used with digital cameras with image sensors larger than APS-C size or 35mm SLR cameras.