Sigma today announced the latest in their Art line of high-end lenses, a 24-105mm f/4 DG OS HSM, which covers the popular wide-angle to medium telephoto zoom range. It is designed for both full frame and cropped sensor Canon DSLR cameras.
The lens boasts a constant f/4 aperture, fast enough and with enough depth of field for most applications, but perhaps not fast enough for those looking for the faster f/2.8 aperture found in some 24-70 lenses. Curiously, no price was included in today’s announcement, but expect it to sell for far less than f/2.8 lenses.
The 24-105 has an inner focusing system that eliminates front lens rotation, which enhances stability and allows for easier use of circular polarizing filters. More significantly, the 24-105mm has Sigma’s Optical Stabilizer (OS) technology to compensate for camera shake. For autofocusing, the lens uses a Hyper Sonic Motor (HSM), which delivers high speed focus with minimal noise, making it well suited for continuous shooting and video recording.
Sigma also claims that “it was designed to surpass the required quality inspection of every Global Vision lens with Sigma’s own modulation transfer function (MTF) “A1” measuring system to create new optical standard to align with the high-spec cameras on today’s market.”
The 24-105 is compatible with Sigma’s USB Dock and Sigma Optimization Pro software for adjusting focus position, and updating its firmware to better suit your needs.