ZEISS Biogon T* 25mm f/2.8 ZM Lens
The Zeiss 25mm f/2.8 is a 25mm f/2.8 lens designed for Leica M mount cameras. Check GearFocus for current availability, with buyer protection on every purchase.
ZEISS Biogon T* 25mm f/2.8 ZM Lens
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Lens Overview — Zeiss 25mm f/2.8
Key Features — Zeiss 25mm f/2.8
Biogon Optical Design: The symmetrical Biogon formula delivers exceptional edge-to-edge sharpness and minimal distortion across the full frame — a hallmark of this optical design in wide-angle lenses.
25mm Full-Frame Prime: A fixed 25mm focal length covers a natural wide-angle field of view with no crop-factor compromise on full-frame Leica M bodies.
Leica M Mount: Native M-mount compatibility makes this lens usable on a wide range of Leica M rangefinders as well as M-mount adapted mirrorless cameras.
f/2.8 Maximum Aperture: Offers practical light-gathering capability for a compact wide-angle prime, suitable for available-light and street photography.
ZEISS T* Anti-Reflection Coating: Zeiss's proprietary T* multi-coating reduces flare and ghosting, maintaining contrast and color fidelity in challenging lighting conditions.
Manual Focus Only: Designed entirely around manual focus, making it a natural match for rangefinder shooting workflows that prioritize precision and deliberate framing.
Lens Specifications — Zeiss 25mm f/2.8
| Spec | Detail |
|---|---|
| Use Cases | Travel, Documentary |
| Lens Type | Wide-Angle |
| Format | Full Frame |
| Zoom/Prime | Prime |
| Focal Length | 25mm |
| Maximum Aperture | f/2.8 |
| Camera System | Mirrorless |
| Lens Mount | Leica M |
| Autofocus | No |
| Focus Type | Manual |
| Image Stabilization | None |
| Filter Thread | 46mm |
Description — Zeiss 25mm f/2.8
The ZEISS Biogon T* 25mm f/2.8 ZM is a wide-angle prime lens built specifically for the Leica M mount, offering full-frame coverage in a package that weighs just 260 grams. With a fixed 25mm focal length and a maximum aperture of f/2.8, it delivers consistent wide-angle perspective with no zoom range to manage. The lens is entirely manual focus — there is no autofocus system — which suits the deliberate, rangefinder-style shooting approach this mount is known for.
A 46mm filter thread keeps accessory costs modest and the overall profile slim. Image stabilization is not present, so photographers should plan accordingly with their shutter speed choices or rely on in-body stabilization where available. Classified as a full-frame lens in the mirrorless camera system category, the ZM is well-matched to modern M-mount mirrorless bodies as well as traditional rangefinder cameras.
For photographers committed to wide-angle, manual-focus work on the Leica M system, the Biogon T* 25mm f/2.8 ZM presents a focused and purpose-driven optical tool.
Pros — Zeiss 25mm f/2.8
- ✓Full-frame coverage (lensFormat: Full Frame) ensures no image circle compromise on full-frame Leica M bodies
- ✓Lightweight at 260g, making it easy to carry for extended shooting sessions
- ✓Wide-angle 25mm prime focal length is ideal for landscape and architectural work
Cons — Zeiss 25mm f/2.8
- ✗Manual focus only — no autofocus support, which may limit use cases for some photographers
- ✗No image stabilization, requiring careful technique in low-light or slow-shutter situations
- ✗Single fixed focal length with no zoom flexibility