Image on top shows the old and legendary Sigma 18-35mm f/1.8 lens.
On June 17 Sigma will announce the new 12mm f/1.4 and 17-40mm f/1.8 E-mount APS-C lenses. Here are more detailed specs about this new fast zoom lens.
17-40mm f/1.8 E
- uses aspherical elements made of SLD (Super Low Dispersion) glass
- manufactured with advanced polishing technology to minimize chromatic aberration, flare, distortion
- Aperture ring, with declick
- sealed against dust and splashes
- excellent sharpness from corner to corner already at f/1.8
- HLA (High-response Linear Actuator) autofocus motor (fast, silent and accurate)
- excellent control over focus breathing
- Internal Zoom
- Size: 115.9mm long, maximum diameter 72.9mm
- 67mm filter
- weight: 535g
- Shipment start in July
So this lens is 5mm shorter, 5mm narrower and 275g lighter than the Sigma 18-35mm f/1.8 lens. And this despite it having 1mm more at the wide end and 5mm more reach at the tele end. Impressive!
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via Fujirumors