Part of Sigma’s first autofocus-compatible cinema lens series, the 28-45mm T2 FF combines Art-lens optical design with handling developed for professional cinema production. High-precision autofocus and tracking support a variety of shooting styles and on-set environments, including situations that can be challenging with conventional still-photo or cinema lenses.
The optical system draws on the Sigma 28-45mm F1.8 DG DN | Art still lens. Sigma combines its lens-design experience and development technology with manufacturing at its Aizu factory to deliver high resolution and pleasing bokeh across focal lengths and focus positions. The design also minimizes flare and ghosting for a sharp, clean image.
- - Cinema-oriented mechanics combine Art-lens rendering and reliability with controls intended for professional production.
- A limited-rotation focus ring provides defined rotational travel.
- Industry-standard 0.8M pitch gears support cinema-style operation.
- A clickless aperture ring rounds out the cinema-focused control layout.
A High-response Linear Actuator (HLA) linear motor powers autofocus with strong tracking performance and near-silent operation. The system is designed to follow fast action, handle rapid focus changes during gimbal or handheld shooting, and respond to unpredictable documentary moments, providing autofocus support across varied filmmaking situations.
