Pink Floyd Veteran Posted January 18, 2006 Veteran Share Posted January 18, 2006 Sigma has announced a new 17-70mm F2.8-4.5 standard zoom lens designed specifically for APS-C sensor digital SLR cameras. The lens offers a minimum focusing distance of 20cm (7.9?) throughout the entire zoom range and a maximum magnification of 1:2.3 enabling extreme close-up photography. Press Release: Large aperture standard zoom lens designed specially for digital SLR camerasb> Minimum focusing distance of 20cm,with an impressive maximum magnification of 1:2.3. at all focal lengths. New design and multi layer lens coating reduce flare and ghosting. Aspherical and SLD lenses offer excellent correction for various aberrations. Large aperture of F2.8 at the wide angle setting. The Sigma Corporation is pleased to announce the launch of the new 17-70mm F2.8-4.5 DC MACRO lens.The lens is ideally suited for a wide variety of subjects and is designed specifically for digital SLR cameras featuring APS-C size image sensor. This revolutionary lens has a minimum focusing distance of 20cm (7.9?) throughout the entire zoom range. A maximum magnification of 1:2.3 enables extreme close-up photography. An impressive achievement for a standard zoom lens. The new lens design and multi layer lens coating reduce flare and ghosting, a common problem with digital cameras. A Special Low Dispersion (SLD) lens and two aspherical lens elements provide excellent correction for all types of aberrations and produce a high level of optical performance throughout the entire zoom range. This lens offers a large F2.8 aperture at 17mm wide angle and yet it is compact, with an overall length of just 79mm (3.1?) and diameter 82.5mm (3.2?). Performance is superb, even in relatively low light conditions indoors or at dusk. The lens design incorporates an inner focusing system, which ensures fast AF speed as well as preventing the front of the lens rotating, making it particularly suitable for use with circular polarizing filters and petal shaped lens hoods. This lens is also equipped with a zoom lock that eliminates ?Zoom Creep? during transportation. <h4 align="leSigma 17-70mm F2.8-4.5 DC MACRO lens Specificationsications</h4> Focal length 17-70mm Minimum aperture F22 Maximum aperture F2.8 Lens construction 15 Elements in 12 Groups Angle of view 72.4?-20.2? Number of diaphragm blades 7pcs Minimum focusing distance 20cm (7.9") Maximum magnification 1:2.3 Filter size 72mm Lens hood Petal hood Dimensions Diameter 79mm (3.1in?)X Length 82.5mm (3.2?) Weight 455gr /16.0oz Optional accessories ? EX Filter Multi-Coated UV72 mm 0085126 912451 ? EX Filter Wide Multi-Coated Circular PL72 mm 0085126 912550 Fittings ? SIGMA AF ? NIKON AF ? CANON AF ? PENTAX AF ? KONICA MINOLTA AF ? Vignetting will occur if the lens is used with digital cameras with image sensors larger than APS-C size or 35mm SLR cameras Source Link to comment Share on other sites More sharing options...
Brandon Posted January 19, 2006 Share Posted January 19, 2006 how much?!?! Sooner or later i might just get this! Link to comment Share on other sites More sharing options...
Pink Floyd Veteran Posted January 19, 2006 Author Veteran Share Posted January 19, 2006 You better stay with your Nikkor 15-55mm Brandon and save for a f/2.8 lens of that same focal lenght Link to comment Share on other sites More sharing options...
Brandon Posted January 19, 2006 Share Posted January 19, 2006 You better stay with your Nikkor 15-55mm Brandon and save for a f/2.8 lens of that same focal lenght After I buy a car... and a xbox 360... but all of that comes after i get a job at bestbuy (i hope as a geek squad lol) Link to comment Share on other sites More sharing options...
Pink Floyd Veteran Posted January 19, 2006 Author Veteran Share Posted January 19, 2006 heheh right on (Y) Link to comment Share on other sites More sharing options...
DigitalN. Posted January 19, 2006 Share Posted January 19, 2006 20CM, nice! Link to comment Share on other sites More sharing options...
Pink Floyd Veteran Posted January 19, 2006 Author Veteran Share Posted January 19, 2006 20CM, nice! real nice!this is 2x the minimal focus lenght compared to 18-70mm from nikkor Link to comment Share on other sites More sharing options...
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