Fujinon XF18mm f/1.4 R LM WR: B&H Photo / Amazon /Adorama
The Fujinon XF18mm F2 R is a beloved lens in the Fujifilm X-system, known for its compact “pancake” design and versatile focal length. However, as one of the original X-mount lenses, it has started to show its age, leading many in the community to hope for an updated version. That wish might be one step closer to reality with the spotting of a new patent.
A patent application, published on January 14, 2026, under the number P2026004114, describes a new optical formula for an 18mm F2 lens. The patent specifically addresses the need for a lens with a “smaller F number, smaller configuration, and good aberration correction.”
Key details from the patent include:
- Inner Focus: This suggests faster and quieter autofocus performance compared to the original lens, which uses an external focusing mechanism.
- Weather Sealing: The patent mentions a weather-resistant design, a highly requested feature for this go-anywhere lens.
- Optical Formula: The patent outlines a new optical construction, likely aimed at improving image quality across the frame.
A Look at the Potential Design
While patents are not a guarantee of a future product, this one aligns perfectly with what many users have been asking for. We’ve created some concept images based on the patent’s description and the current XF lens design language to give you an idea of what the Fujinon XF18mm F2 MKII could look like.
The header image of this post shows a conceptual rendering of the lens mounted on a Fujifilm X-T5. Below is a diagram from the patent itself, illustrating the internal lens elements and the inner focus group.
What’s Next?
As always, it’s important to remember that not all patented designs make it to market. However, given the age of the original XF18mm F2 and the persistent demand for an update, this patent is a very encouraging sign. We’ll be sure to keep you updated on any further developments.
What are your thoughts? Is an XF18mm F2 MKII on your wishlist? Let us know in the comments!
via jplatpat
