Tuesday, September 26, 2006
Sigma Announces New 18-50mm F2.8 EX DC Macro Lens
Sigma today announced the new 18-50mm F2.8 EX DC Macro lens designed exclusively for Digital SLR’s using the four-thirds mount. This lens has a large aperture of F2.8 throughout the entire zoom range. A minimum focusing distance of 20cm (7.9") and a maximum magnification of 1:3, makes it ideal for close-up photography.
Specially designed to suit the characteristics of digital SLR cameras, this lens provides a high level of optical performance. Its design incorporates both glass-mold and hybrid aspherical lens technology which offers extremely high image quality as well as a compact and lightweight construction. Minimal vignetting and superior peripheral brightness is ensured.
Special Low Dispersion (SLD) and Extraordinary Low Dispersion (ELD) glass elements provide excellent correction of colour aberrations. The super multi-layer lens coating reduces flare and ghosting, a common problem with digital cameras.
High image quality is assured throughout the entire zoom range. An inner focusing system eliminates front lens rotation, making the lens particularly suitable for using the petal-type lens hood (supplied) plus circular polarising filters.
Specifications
- Mount: Four Thirds
- Minimum Aperture: F22
- Lens Construction: 15 Elements in 13 Groups
- Angle of View: 62.0°-24.4°
- Number of Diaphragm Blades: 7pc
- Minimum Focusing Distance: 20cm (7.9")
- Maximum Magnification: 1:3
- Filter Size: 72mm
- Lens Hood: Petal Hood
- Dimensions Diameter: 79mm (3.1") x Length 91.1mm (3.6")
- Weight: 525g / 18.5oz
- SRP: £369.99
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