According to Japanese website asobinet, Sigma will soon announce a new super telephoto zoom lens for Sony E-mount. This lens is Sigma 60-600mm f/4.5-6.3 DG DN OS Sports lens. Compared to already released Canon EF & Nikon F version, this lens is 200g lighter, you can take a look at specs of Sigma 60-600mm f/4.5-6.3 DG DN OS Sports Lens:
- Lens construction: 27 elements in 19 groups
- Minimum Focus Distance: 45-260cm
- Maximum magnification: 1:2.4
- Number of aperture blades: 9 (circular aperture)
- Filter diameter: 105mm
- Size: φ119.4mm x 279.2mm (281.2mm for E-mount version)
- Weight: 2495g (2485g for E-mount version)
- Hood: LH1144-02
- Lens cap: LC-740E
- Tripod socket: TS-121
via: asobinet