Today, Sigma has broken a record–they’ve combined autofocusing capabilities, a constant f1.8 aperture and a constant zoom range in a single lens. Previously, Olympus was the speed champion with the F2 zoom lenses, but Sigma is now producing f1.8 zooms. Designed for APS-C sensor DSLRs, it will sport a 27-52.5mm field of view. This is also the company’s first zoom art lens–which were previously thought to be comprising of only primes.
The lens has Sigma’s Super Multi-Layer Coating, comes supplied with a petal-type hood, features Sigma’s Hyper Sonic Motor (HSM) and has nine aperture blades. More tech specs are after the jump along with another photo. No word on pricing yet, but we don’t expect this to be cheap.
– Lens Construction: 17 elements in 12 groups
– Minimum aperture: F16
– Filter size: 72mm
– Angle of view (SD1): 76.5°-44.2°
– Minimum focusing distance: 11 in.
– Dimensions (Diameter x Length): 3.1 inches x 4.8 inches
– Number of diaphragm blades: 9 (rounded diaphragm)
– Maximum magnification ratio: 1:4.3
– Weight: 28.6oz
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