Sigma · PL (Positive Lock) mount · Zoom lens
Sigma 28-45mm T2 FF Cine Zoom — adapter compatibility and body matches
The Sigma 28-45mm T2 FF Cine Zoom sits on the PL flange geometry (52 mm) — below is every body mount it adapts onto, the autofocus / IS / aperture-control level you should expect, and the specific adapter SKUs that ship the path.
Lens specifications
- Manufacturer
- Sigma
- Lens mount
- PL (Positive Lock)
- Focal length
- 28–45mm
- Aperture
- f/2 – f/22
- Lens type
- Zoom
- Image stabilization
- No
- Weight
- 1545 g
- Filter thread
- 95 mm
- Released
- 2024
Background & adapter context
The world's first full-frame T2 zoom (announced April 2024) — opens up a focal range previously available only as a set of fast primes. PL mount primary; Sigma also ships EF and Sony E variants of the same optical block as separate SKUs. Parfocal across the 28-45 mm zoom range. Cinema-spec build: 0.8 MOD geared focus / zoom / iris rings, 95 mm front diameter (matches the rest of Sigma's FF Classic / Classic Prime cinema line for shared matte-box workflow), 11-blade rounded iris. The 28-45 T2 is the sibling to the larger 28-45 T2 FF Cine zoom — Sigma's first foray into full-frame T2 zooms; previously their cinema zooms were the 18-35 T2 / 50-100 T2 Super-35 line. Manual focus / iris, mechanical aperture ring (no electronic iris drive in the PL variant). Designed for full-frame sensors up to VistaVision (24.89 × 23.32 mm) — covers ARRI ALEXA 35, Sony Venice 2, RED V-Raptor [X], Panasonic VariCam LT 4K full-frame mode. The matched stills-mount EF / E variants accept body iris control (Sigma's Cine USB Dock can re-flash the lens with iris-position metadata profiles for VFX).
Adapting the Sigma 28-45 T2 FF Cine onto other bodies
Every feasible body-mount destination for a PL (Positive Lock) lens, sorted by adapter feasibility. Curated adapter SKUs (linked below) cover the specific lens-side → body-side pairing — pick the row matching the body you own, then click the SKU for the full teardown.
| Body mount | Result | Adapter examples | Caveats |
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Body mount Canon EF | Mechanical |
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Body mount Canon EF-S | Mechanical |
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Body mount Canon RF | Mechanical |
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Body mount Canon FD | Mechanical |
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Body mount Canon EF-M | Mechanical |
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Body mount Nikon F | Mechanical |
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Body mount Nikon Z | Mechanical |
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Body mount Sony A / Minolta A | Mechanical |
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Body mount Sony E (incl. FE) | Mechanical |
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Body mount Fujifilm X | Mechanical |
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Body mount Fujifilm GFX (G-mount) | Mechanical |
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Body mount Micro Four Thirds | Mechanical |
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Body mount L-Mount | Mechanical |
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Body mount M42 (Pentax / Praktica screw mount) | Mechanical |
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Body mount Leica M | Mechanical |
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Body mount Pentax K | Mechanical |
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Body mount Canon EF (cine) | Mechanical |
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Body mount Canon RF (cine) | Mechanical |
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Body mount Exakta | Mechanical |
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Body mount C-mount | Mechanical |
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Body mount Praktica B | Mechanical |
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Body mount Konica AR | Mechanical |
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Body mount Minolta SR / MC / MD | Mechanical |
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Body mount Olympus OM | Mechanical |
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Body mount Contax/Yashica (C/Y) | Mechanical |
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Body mount T-mount (T2) | Speed booster |
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About the PL (Positive Lock) mount
Arri's Positive Lock cinema mount, the de-facto industry standard for high-end cine glass since 1982. 52 mm flange (the deepest of any current mount) and four locking flange-pins yield a rock-solid interface that resists shock and follow-focus torque. Pure mechanical interface — some lenses carry Cooke /i or Zeiss eXtended Data contacts for metadata pass-through, but no AF or electronic aperture in the body-to-lens protocol. PL adapters exist for nearly every mirrorless body (Sony FX, Canon C-series RF, RED, Z CAM); the deep flange means a PL-to-mirrorless adapter is always physically possible without optics.
Common questions
- What's the best body to adapt the Sigma 28-45mm T2 FF Cine Zoom onto?
- Two strong destinations. First choice: a Canon EF body via a generic mechanical adapter ring (multiple vendors) preserves the most of the Sigma 28-45 T2 FF Cine's native behaviour (autofocus, in-lens IS where present, electronic aperture). Second choice: a Canon EF-S body via a generic mechanical adapter ring (multiple vendors) — solid fallback when the first body family is unavailable. The /matrix and /picker pages let you compare every feasible adaptation side-by-side.
- Will autofocus work when the Sigma 28-45 T2 FF Cine is adapted onto another body?
- No — adapters in our catalogue route the Sigma 28-45 T2 FF Cine through a mechanical path on the best-supported body (T-mount (T2)). Focus is fully manual; rely on the body's focus peaking and magnify-to-focus aids to nail focus.
- Does the Sigma 28-45 T2 FF Cine's in-lens image stabilization still work through an adapter?
- The Sigma 28-45 T2 FF Cine has no in-lens IS / VR / OS unit — there's no in-lens stabilisation to pass through. Bodies with IBIS (most modern mirrorless) still stabilise the captured frame, but stabilisation is body-side only.