Sigma AF Cine Zoom 28-45mm T2 Cinema Lens with E-Mount
Sigma · Sigma High-Speed Zoom
Price not listed
Key Features
- Wide Full Frame Coverage
- T2 Maximum Aperture
- Imperial or Metric Focus Scale
- Electronic Contacts
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In the Box
- 1 × Sigma 28-45mm T2 Cine Zoom Lens with AF (E-Mount)
Overview
The Sigma AF Cine Zoom 28-45mm T2 Cinema Lens with E-Mount is a wide-angle spherical zoom that covers Full Frame sensors. Wide-angle coverage takes in more of a location than the eye does, which suits establishing shots, landscapes, and interiors where the space carries the scene. Its 1.6x zoom range allows camera operators to reframe without repositioning the camera, and a constant T2 aperture holds exposure steady through the zoom. A fast T2 aperture lets camera operators separate subjects from their backgrounds or get the most out of available lighting when filming in darker environments, and the lens closes to T16. It uses an E-Mount with autofocus. Standard electronic contacts pass aperture and focus information between the lens and the camera body. The focus barrel is available in either imperial or metric markings.
Features
Key Features
Wide Full Frame Coverage
The lens covers Full Frame sensors, projecting a 43.3 mm image circle. A wide-angle field of view holds a subject and its surroundings in one frame, which is what establishing shots, interiors, and landscape work call for.
T2 Maximum Aperture
At T2 the lens separates subjects cleanly from their backgrounds and gets the most out of available lighting when filming in darker environments. It closes to T16.
Imperial or Metric Focus Scale
The lens ships with either an imperial or a metric focus barrel. The scale is fixed at purchase rather than switchable, so a rental order or a set build has to specify which one is needed.
Electronic Contacts
Contacts in the mount pass aperture and focus information between lens and body. The camera records those settings into metadata and can drive the iris electronically where the body supports it.
Optical Design
1.6x Zoom Range
The 28-45mm range covers 1.6x without a lens change, holding a constant T2 through the zoom. Reframing happens on the barrel, letting one operator move between a wide and a tight shot inside a single take.
Focus & Handling
11.8 in Minimum Focus
Mount & Rig Integration
0.8-Pitch Cine Gears
The lens carries 0.8-pitch cine gears, the standard pitch for follow focus units and lens motors. Compatibility with lens control systems lets a solo operator make consistent, repeatable focus pulls, or a camera assistant control the lens remotely.
95mm Front Diameter
The front element measures 95mm, which fits a compact matte box directly and steps up to a 114 mm clamp with an adapter ring. Matte box fit follows from this measurement rather than from the filter thread, since the clamp grips the outside of the barrel.
82mm Filter Thread
The front accepts 82mm screw-in filters behind a 95mm front element. A matte box clamps to the outside diameter instead, which is what most cine setups use to avoid re-threading filters between lenses.