KIPON Ibelux 40mm f/0.85 Mark III
The Kipon 40mm f/0.85 Mark III is a 40mm f/0.85 lens designed for Sony E, Canon EF-M, Fujifilm X, Micro Four Thirds mount cameras. Check GearFocus for current availability, with buyer protection on every purchase.

KIPON Ibelux 40mm f/0.85 Mark III
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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 mirrorless lens, enabling shooting in extremely low light without artificial lighting.
Extreme Shallow Depth of Field: At f/0.85, the lens produces a very thin focal plane, allowing for dramatic subject separation and heavily blurred backgrounds.
40mm APS-C Prime: A standard field of view on APS-C sensors, making it well suited to portraiture, street photography, and available-light work.
Four-Mount Availability: Available in Sony E, Canon EF-M, Fujifilm X, and Micro Four Thirds mounts, covering most major mirrorless systems.
Manual Focus Design: Dedicated manual focus ring supports deliberate, precise focusing suited to controlled shooting environments and artistic workflows.
67mm Filter Thread: Standard 67mm filter thread gives access to a wide range of widely available ND, polarizing, and other filter accessories.
Lens Specifications — Kipon 40mm f/0.85 Mark III
| Spec | Detail |
|---|---|
| Lens Type | Manual Focus Only |
| Format | APS-C |
| Zoom/Prime | Prime |
| Focal Length | 40mm |
| Maximum Aperture | f/0.85 |
| Camera System | Mirrorless |
| Lens Mount | Sony E, Canon EF-M, Fujifilm X, Micro Four Thirds |
| Autofocus | No |
| Focus Type | Manual |
| Image Stabilization | None |
| Filter Thread | 67mm |
| Weight | 1200g |
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 cameras, offering one of the most extreme maximum apertures available in its category at f/0.85. This fixed 40mm focal length places it firmly in the standard range, making it a versatile option for portrait and low-light photographers. The lens is offered in Sony E, Canon EF-M, Fujifilm X, and Micro Four Thirds mounts, covering a broad range of mirrorless systems.
A 67mm filter thread provides compatibility with a wide selection of standard filter accessories. Weighing 1200g, this is a substantial lens that demands a confident shooting setup. With no image stabilization and manual focus only operation, it rewards shooters who prioritize optical control and creative intent over automation.
Pros — Kipon 40mm f/0.85 Mark III
- ✓Extreme f/0.85 maximum aperture enables shooting in very low light conditions
- ✓Available in four mount options: Sony E, Canon EF-M, Fujifilm X, and Micro Four Thirds
- ✓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
- ✗No image stabilization, which can be a challenge at such a wide aperture
- ✗At 1200g, the lens is notably heavy for a mirrorless prime
Reviews — Kipon 40mm f/0.85 Mark III
Videos — Kipon 40mm f/0.85 Mark III
Pink 40mm f/0.85 Lens BOKEH Machine! — Kai W
Frequently Asked Questions — Kipon 40mm f/0.85 Mark III
Which camera mounts is the KIPON Ibelux 40mm f/0.85 Mark III compatible with?+
The lens is available in four mounts: Sony E, Canon EF-M, Fujifilm X, and Micro Four Thirds. It is designed for APS-C mirrorless camera systems across these platforms.
Does this lens support autofocus?+
No. The KIPON Ibelux 40mm f/0.85 Mark III is a manual focus only lens. There is no autofocus motor or electronic autofocus capability.
What filter size does this lens use?+
The lens uses a 67mm filter thread, which is a common size with broad filter accessory availability.
How heavy is this lens?+
The KIPON Ibelux 40mm f/0.85 Mark III weighs 1200g. This is a significant weight for a mirrorless prime lens, something to consider when planning handheld or travel shooting.
Does the lens include image stabilization?+
No, image stabilization is not present on this lens. Shooters should rely on their camera body's stabilization system if available, or use a stable shooting platform.