Fujifilm NiSi 250mm f/5.6 Reflex Medium Format Lens Review

The NiSi 250mm f/5.6 Reflex is a manual-focus medium format telephoto lens built for one thing: creating images with distinctive, donut-shaped bokeh. It's an affordable tool for artistic photography, but its fixed f/5.6 aperture and lack of autofocus make it a specialty item, not a daily driver.

If you're a medium format shooter looking for a telephoto lens that's more about character than clinical perfection, the NiSi 250mm f/5.6 Reflex is a fascinating option. At $499, it's a manual-focus mirror lens designed for Fujifilm G and Hasselblad XCD mounts, offering a fixed f/5.6 aperture and that classic donut-shaped bokeh. It's not your everyday workhorse lens; it's a creative tool for photographers who want to add a distinct, painterly look to portraits, landscapes, or artistic projects. With a 250mm focal length on a medium format sensor, you're getting a lot of reach, perfect for compressing backgrounds and isolating subjects, even if the maximum aperture isn't particularly fast.

Our data shows this lens lands in the lower percentiles for most performance metrics, which is exactly what you'd expect from a specialized mirror lens. Its optical quality score is in the 35th percentile, and its bokeh score is in the 31st percentile. That doesn't mean it's bad—it means it's different. The images it produces are sharp in the center with that signature soft, swirly bokeh and donut-shaped highlights. The 270-degree focus ring gives you fine control, but with no autofocus and no stabilization, you'll need steady hands or a tripod, especially at this focal length. It scored weakest for macro (18th percentile) with a 2-meter minimum focus distance, so it's not for close-up work.

At $499, the NiSi 250mm f/5.6 is one of the more affordable ways to get a telephoto perspective on a medium format camera. You're paying for a specific character, not for versatility or speed. If you want a sharp, fast, autofocus telephoto for general use, you'll need to look elsewhere and spend a lot more. But if the unique mirror lens look is your goal, this is a relatively low-cost way to experiment with it on a high-end system.

This lens is in a niche of its own, but let's look at some alternatives. The Viltrox 35mm F1.7 for Fuji X Mount is an autofocus lens that's much faster (f/1.7) and wider, making it a better all-around option, but it's for APS-C, not medium format. For medium format, you'd typically be looking at native Fujifilm GF lenses, which are autofocus, sharper, and weather-sealed, but they cost several times more. The Canon RF 28-70mm F2.8 is a completely different beast—a standard zoom for full-frame with a fast constant aperture. The NiSi isn't competing with those on specs; it's offering a look they can't replicate. The real competition is other manual-focus specialty lenses or adapting vintage glass.

Skip this lens if you need autofocus for anything—sports, wildlife, or fast-paced events are a no-go. Also skip it if you shoot in low light often, as f/5.6 is limiting. If you're a macro photographer, the 2-meter minimum focus distance makes it useless. And if you prefer clean, modern, clinically sharp bokeh, this lens's distinctive look will probably annoy you. For those users, a standard autofocus telephoto prime or zoom from Fujifilm or Hasselblad would be a much better fit, even if it costs more.

Should you buy the NiSi 250mm f/5.6 Reflex? Only if you know exactly what you're getting into. This isn't a lens you buy for its technical scores—our database shows it's below average in almost every category. You buy it for the unique, dreamy, donut-bokeh images it can produce. It's a fun, creative sidearm for a medium format shooter who already has their reliable everyday lenses covered. If you shoot portraits, fine art, or landscapes and want to inject a classic, ethereal quality into your work, it's a compelling and affordable experiment. If you need autofocus for wildlife, a faster aperture for low light, or close focusing ability, you should skip it.