The NiSi 16mm f/2.8 ASPH. is an ultra-wide-angle prime built specifically for medium format mirrorless cameras. Designed for the Fujifilm GFX (G-Mount) system, it pairs a bright f/2.8 aperture with an expansive field of view exceeding 118 degrees and resolving power matched to 100-megapixel sensors. With a 12-group, 16-element optical design and a weather-sealed metal body, it brings true ultra-wide coverage and professional image quality to landscape, architecture, interior, and astro work in a compact, travel-friendly package.
- Ultra-Wide 16mm Field of View: With a full-frame equivalent of approximately 12.6mm, it delivers an expansive field of view exceeding 118 degrees for dramatic medium format compositions.
- Bright f/2.8 Maximum Aperture: A fast f/2.8 aperture lets you work at lower ISO for cleaner night skies, astrophotography, and dim interiors on high-resolution sensors.
- Built for 100MP Medium Format Sensors: The advanced optical design resolves fine detail from center to edge across the entire image circle, matching today’s highest-resolution medium format cameras.
- Native Fujifilm G-Mount Fit: This version mounts directly to Fujifilm GFX medium format bodies with no adapter, in a compact 108mm barrel that balances well in the field.
- 12-Group, 16-Element Optical Design: Three glass aspherical elements and four ultra-low dispersion elements work together to deliver outstanding sharpness, contrast, and color accuracy.
- APO-Level Chromatic Aberration Control: Axial and lateral color fringing is held to a minimum even wide open, resulting in clean edge definition and true-to-life color across the frame.
- Clean 8-Point Sunstars: A specially designed 8-blade aperture creates crisp, defined 8-point sunstars from f/4 to f/22 for striking starburst effects in cityscapes and night scenes.
- 0.25m Close-Focus Capability: A minimum focusing distance of just 0.25m enables close-up compositions with strong foreground impact and an exaggerated ultra-wide perspective.
- Weather-Sealed Metal Body: A durable metal barrel with a weather-sealing ring helps resist moisture and dust, staying compact and lightweight at approximately 835g.
- 82mm Filter Thread with SA+ Coating: An 82mm front thread accepts screw-in filters, while SA+ anti-reflection and ultra-hard surface coatings deliver low flare and lasting protection.









