KIPON Ibelux 40mm f/0.85 Mark III Lens
The Kipon 40mm f/0.85 Mark III is a 40mm f/0.85 lens designed for Sony E, Fujifilm X, Canon EF-M, Micro Four Thirds mount cameras. Check GearFocus for current availability, with buyer protection on every purchase.
KIPON Ibelux 40mm f/0.85 Mark III Lens
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Lens Overview — Kipon 40mm f/0.85 Mark III
Key Features — Kipon 40mm f/0.85 Mark III
f/0.85 Maximum Aperture: One of the widest apertures available on any interchangeable mirrorless lens, enabling shooting in extremely low light without artificial illumination.
Ultra-Shallow Depth of Field: At f/0.85, the lens produces intense subject separation and background blur that is difficult to achieve with conventional fast primes.
40mm APS-C Prime: Delivers a standard field of view on crop-sensor bodies, making it well-suited for street, portrait, and documentary work.
Four Mount Options: Available in Sony E, Fujifilm X, Canon EF-M, and Micro Four Thirds mounts, covering the major APS-C and MFT mirrorless systems.
Manual Focus Design: Fully manual focus operation suits photographers who prefer precise control, zone focusing, or cinematic focus pulls.
67mm Filter Thread: Standard 67mm front thread allows use of widely available ND, polarizing, and other screw-on filters.
Lens Specifications — Kipon 40mm f/0.85 Mark III
| Spec | Detail |
|---|---|
| Lens Type | Prime |
| Format | Micro Four Thirds (MFT) |
| Zoom/Prime | Prime |
| Focal Length | 40mm |
| Maximum Aperture | f/0.85 |
| Camera System | Mirrorless |
| Lens Mount | Sony E, Fujifilm X, Canon EF-M, Micro Four Thirds |
| Autofocus | No |
| Focus Type | Manual |
| Image Stabilization | None |
| Filter Thread | 67mm |
| Weight | 1150g |
Description — Kipon 40mm f/0.85 Mark III
The KIPON Ibelux 40mm f/0.85 Mark III is a manual-focus prime lens built for APS-C mirrorless camera systems, offering a maximum aperture of f/0.85 — one of the widest available in this category. Its 40mm focal length falls within the standard focal length range, keeping it practical for everyday creative use. The lens is offered across four mounts: Sony E, Fujifilm X, Canon EF-M, and Micro Four Thirds, making it accessible to a wide community of mirrorless shooters.
Focus is entirely manual, with no autofocus capability, placing full control in the photographer's hands. A 67mm filter thread allows for easy integration with standard accessory filters. The lens weighs 1,150g, reflecting the substantial optical construction required to achieve its ultra-wide aperture. No image stabilization is included.
For photographers who prioritize maximum aperture and are comfortable with manual focus disciplines, the Ibelux 40mm f/0.85 Mark III is a distinctive tool in the mirrorless prime lens market.
Pros — Kipon 40mm f/0.85 Mark III
- ✓Exceptionally wide maximum aperture of f/0.85, among the largest available for mirrorless mount lenses
- ✓Broad mount compatibility covering Sony E, Fujifilm X, Canon EF-M, and Micro Four Thirds systems
- ✓Standard 40mm focal length on APS-C suits a wide range of shooting scenarios
Cons — Kipon 40mm f/0.85 Mark III
- ✗Manual focus only — no autofocus support, which may limit usability for fast-moving subjects
- ✗No image stabilization, which combined with manual focus demands steady technique
- ✗At 1,150g, the lens is notably heavy for a mirrorless APS-C prime