NiSi 9mm f/2.8 Sunstar
The NiSi 9mm f/2.8 is a 9mm f/2.8 lens designed for Fujifilm X mount cameras. Check GearFocus for current availability, with buyer protection on every purchase.

NiSi 9mm f/2.8 Sunstar
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Lens Overview — NiSi 9mm f/2.8
Key Features — NiSi 9mm f/2.8
9mm Ultra Wide Prime: Fixed 9mm focal length on APS-C delivers an approximately 13.5mm full-frame equivalent field of view, ideal for landscapes, interiors, and architecture.
f/2.8 Maximum Aperture: Relatively bright aperture for an ultra wide-angle prime, enabling shooting in lower light and adding some subject separation at close focus distances.
APS-C Mirrorless Design: Optical formula built specifically for APS-C sensors, pairing natively with Fujifilm X mount mirrorless bodies.
Manual Focus Only: Dedicated manual focus ring suits deliberate shooting workflows like landscape, architecture, and long-exposure photography.
Sunstar Aperture Rendering: Designed to produce defined, sharp sunstar effects from point light sources when stopped down.
67mm Filter Thread: Standard 67mm front thread accepts common screw-in filters including ND, polarizer, and graduated ND filters for landscape work.
Lens Specifications — NiSi 9mm f/2.8
| Spec | Detail |
|---|---|
| Use Cases | Astrophotography, Travel |
| Lens Type | Ultra Wide-Angle |
| Format | APS-C |
| Zoom/Prime | Prime |
| Focal Length | 9mm |
| Maximum Aperture | f/2.8 |
| Camera System | Mirrorless |
| Lens Mount | Fujifilm X |
| Autofocus | No |
| Focus Type | Manual |
| Image Stabilization | None |
| Filter Thread | 67mm |
Description — NiSi 9mm f/2.8
The NiSi 9mm f/2.8 Sunstar is a prime, ultra wide-angle lens built for APS-C mirrorless cameras in the Fujifilm X mount. Its 9mm focal length makes it well suited for wide-scene photography including landscapes, interiors, and architectural subjects where capturing a broad view is the priority. The f/2.8 maximum aperture provides solid light intake for a lens in this focal range, giving photographers flexibility when light levels drop.
Focus is manual, offering precise control for deliberate, composed shooting. There is no image stabilization on board, so steady technique or a tripod is recommended for slower shutter speeds. The 67mm filter thread is a practical feature for landscape photographers who frequently use screw-on filters.
Weighing in at 364g, the lens balances capability with portability for day-to-day carry in a mirrorless kit. Designed exclusively for the APS-C format, it pairs directly and optimally with Fujifilm X mount APS-C bodies.
Pros — NiSi 9mm f/2.8
- ✓Wide f/2.8 maximum aperture provides strong light-gathering for an ultra wide-angle prime
- ✓9mm focal length delivers an expansive field of view suited to landscapes and architecture on APS-C
- ✓Prime lens design (single fixed focal length) typically supports consistent optical performance
Cons — NiSi 9mm f/2.8
- ✗Manual focus only — no autofocus support, which limits usability in fast or unpredictable shooting situations
- ✗No image stabilization, so handheld shooting in low light requires attention to shutter speed
- ✗APS-C-only lens format means it cannot be used on full-frame mirrorless bodies
Videos — NiSi 9mm f/2.8
Nisi 9mm f/2.8 lens review with samples — Christopher Frost

