14 DAY TRIAL // Along with details of the new SD14, Sigma also announced six new lenses, four of which are built for the four-thirds standard. With the addition of these four lenses, photographers can now choose between eleven products for their four thirds cameras.
24mm F1.8 EX DG Aspherical Macro
This large aperture F1.8 wide-angle lens has a minimum focusing distance of 18cm (7.1") and a maximum magnification of 1:2.7. Two aspherical lenses ensure the utmost correction of distortion and aberrations. The floating focus system provides high optical performance from 18cm to infinity. The Dual Focus (DF) system makes the lens easy to hold and eliminates focus ring rotation during auto-focusing, making the lens particularly suitable for accepting the petal-type lens hood. With Four Thirds cameras, the focal length will be equivalent to 48mm.
Specifications
Mount Type : Four Thirds Minimum Aperture : F22 Lens Construction : 10 Elements in 9 Groups Angle of View : 48.5? Number of Diaphragm Blades: 9pcs Minimum Focusing Distance: 18cm (7.1") Maximum Magnification: 1:2.7 Filter Size: 77mm Lens Hood: Petal Hood Dimensions : Diameter 83.6mm (3.3")X Length 87.9mm (3.5") Weight : 520g / 18.3oz
APO 135-400mm F4.5-5.6 DG
The very latest lens coating technology and lens design reduce flare and ghosting, a common problem with digital cameras. This lens uses one aspherical lens and three Special Low Dispersion (SLD) glass elements for excellent correction of various aberrations. The rear focusing system ensures fast focusing speed as well as preventing the front of the lens to rotate, making it particularly suitable for use with circular polarizing filters. A removable tripod collar is included as a standard component. With Four Thirds cameras, the focal length will be equivalent to 270-800mm.
Specifications
Mount Type: Four Thirds Minimum Aperture : F22 Lens Construction: 13 Elements in 11 Groups Angle of View : 9.2?-3.1? Number of Diaphragm Blades: 9pcs Minimum Focusing Distance: 200cm(78.7")-220cm (86.6") Maximum Magnification: 1:5.3 Filter Size: 77mm Lens Hood: Bayonet type Hood Dimensions: Diameter 83.5mm (3.3")X Length 189mm (7.4") Weight : 1280g / 45.1oz
APO 300-800mm F5.6 EX DG HSM
This large aperture ultra-telephoto zoom lens covers the equivalent field of view to 600mm to 1600mm when used on Four-Thirds cameras. By continuously varying the angle of view, the lens takes a lot of the footwork out of picture composition. The very latest lens coating technology and lens design reduce flare and ghosting, a common problem with digital cameras. Two ELD glass elements in the front lens group reduce chromatic aberration to a minimum and also ensure high optimum image quality. The overall length of the lens does not change during focusing and zooming, ensuring convenient handling.
The HSM provides ultra quiet, high-speed autofocusing as well as full-time manual focus override. This lens is designed to accept a 46mm circular polarizing filter in a rear filter holder.
Specifications
Mount Type: Four Thirds Minimum Aperture: F22 Lens Construction: 18 Elements in 16 Groups Angle of View: 4.1?-1.5? Number of Diaphragm Blades: 9pcs Minimum Focusing Distance:600cm(236.2") Maximum Magnification: 1:6.9 Filter Size:46mm (Rear) Lens Hood: Bayonet type hood Dimensions: Diameter 156.5mm (6.2")X Length 549.4mm (21.6") Weight: 5915g / 208.6oz
18-50mm F2.8 EX DC MACRO
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. Especially designed to suit the characteristics of digital SLR cameras, this lens provides a high level of optical performance. Its design incorporates both glass-mould and hybrid aspherical lens technology which offers superior peripheral brightness, extremely high image quality as well as a compact and lightweight construction. Special Low Dispersion (SLD) and Extraordinary Low Dispersion (ELD) glass elements provide excellent correction of color 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 polarizing filters.
Specifications
Mount Type: Four Thirds Minimum Aperture: F22 Lens Construction: 15 Elements in 13 Groups Angle of View: 62.0?-24.4? Number of Diaphragm Blades: 7pcs 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
