Best Variable ND Filter for Mitakon Zhongyi Speedmaster 50mm f/0.95 III
Shooting with the Mitakon Zhongyi Speedmaster 50mm f/0.95 III is a dream for bokeh lovers, but that massive f/0.95 aperture is a literal light magnet. In broad daylight, even a 1/8000s shutter speed won’t save your highlights from blowing out. To keep that “dreamy” look wide open, a high-quality Variable ND is mandatory. I’ve tested several 67mm filters to find which ones maintain sharpness without adding nasty X-patterns or muddy color shifts to your ultra-fast glass. The PolarPro PMVND remains my top recommendation for professional results.
Our Top Picks at a Glance
Best Variable ND Filter for Mitakon Zhongyi Speedmaster 50mm f/0.95 III: Detailed Reviews
PolarPro PMVND Signature Edition II View on Amazon View on B&H
The Mitakon 50mm f/0.95 demands a filter that won’t degrade its unique character, and the PolarPro Peter McKinnon Edition II is the gold standard. When shooting wide open at f/0.95, you need serious light reduction; I recommend the 6-9 stop version for bright sunlight. What sets this apart is the haptic feedback—you can feel the stops clicking into place, ensuring you don’t over-rotate and hit the dreaded “X” cross-polarization. The color accuracy is staggering, with almost no shift toward green or magenta. Its Defender360 cover also provides better protection than a standard lens cap. While it is an investment, putting cheap glass in front of an f/0.95 lens is a recipe for soft images. This filter preserves the Mitakon’s micro-contrast perfectly, making it the most reliable tool in a professional kit.
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K&F Concept Nano-X True Color View on Amazon View on B&H
If you find the PolarPro a bit too pricey, the K&F Concept Nano-X True Color is a revelation. Historically, mid-range VNDs were notorious for a heavy yellow or green cast, but this “True Color” version lives up to its name. On the Speedmaster f/0.95 III, I’ve found it maintains surprisingly sharp centers. It features physical hard stops, which prevents you from rotating into the “dark X” zone. The 1-5 stop range is great for overcast days, but for high-noon f/0.95 shots, you might still struggle; I suggest the 5-9 stop version for this specific lens. The build quality is impressive, with a CNC-machined frame that feels tactile and premium. It’s the sweet spot for hobbyists who want the shallow depth of field look without the professional price tag.
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Neewer 67mm Variable ND2-ND32 View on Amazon View on B&H
For those just starting out with the Speedmaster and who have already spent their budget on the lens itself, the Neewer Variable ND is a functional entry point. It offers 1 to 5 stops of light reduction. At f/0.95, you will notice a slight softening of the image at the extreme corners compared to the PolarPro, and there is a mild warm color cast that you’ll need to correct in post-production. However, for casual street photography or social media content, it gets the job done. It lacks hard stops, so you must be careful not to over-rotate. Despite these limitations, the multi-layer coating does a decent job of resisting flares—a common issue when shooting at wide apertures toward the sun. It’s a “better than nothing” solution that allows you to actually use your f/0.95 lens in the sun.
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B+W 67mm XS-Pro Digital Vario ND View on Amazon View on B&H
B+W has a legendary reputation for a reason. The XS-Pro Digital Vario ND uses high-quality Schott glass, which is essential when you’re shooting with a lens as optically complex as the Mitakon III. This filter is incredibly neutral; I’ve found it produces the most “transparent” results with virtually no impact on the lens’s native bokeh rendering. The brass ring construction is much more durable than aluminum and is less likely to bind or get stuck on your lens threads. While it doesn’t have the “hard stops” of the PolarPro, the rotation is smooth and well-damped. It’s an ideal choice for photographers who prioritize build quality and optical longevity. If you want a filter that will likely outlast the camera body you’re using it on, this is the one to get.
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Tiffen 67mm Variable ND Filter View on Amazon View on B&H
Tiffen is a staple in the motion picture industry, and their Variable ND is a classic for a reason. One unique feature of the Tiffen is that the outer ring is slightly larger than the mounting thread (67mm), which helps prevent vignetting on wider lenses—though on the 50mm Mitakon, this isn’t a huge issue, it’s still nice to have. It has a slightly “warm” look that many videographers find pleasing for skin tones. It uses Tiffen’s ColorCore technology to maintain consistency. I’ve used this for years on various Speedmaster iterations, and it provides a very “organic” feel to the footage. It doesn’t have hard stops, so you have to eyeball your exposure, but the transition is very smooth, making it great for “pulling” exposure during a take if you’re feeling brave.
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Buying Guide: How to Choose a Variable ND for the Mitakon 50mm f/0.95
Comparison Table
| Product | Best For | Rating | Price |
|---|---|---|---|
| PolarPro PMVND II | Professional Work | ★★★★★ | Check |
| K&F Concept True Color | Value/Enthusiasts | ★★★★☆ | Check |
| Neewer ND2-ND32 | Budget Starters | ★★★★☆ | Check |
| B+W XS-Pro Vario | Optical Purity | ★★★★★ | Check |
| Tiffen Variable ND | Cinematic Video | ★★★★☆ | Check |
Frequently Asked Questions
What filter size does the Mitakon 50mm f/0.95 III take?
The Mitakon Zhongyi Speedmaster 50mm f/0.95 III features a 67mm front filter thread. This is a very common size, making it easy to find high-quality filters. If you have other lenses with larger threads (like 77mm or 82mm), you could technically use a step-up ring, but for a lens this fast and heavy, I highly recommend using a native 67mm filter for the best balance and to allow the lens hood to function properly.
Why do I need a Variable ND for an f/0.95 lens?
At f/0.95, the lens lets in a massive amount of light. Even at your camera’s base ISO and fastest shutter speed, images will often be overexposed in daylight. A Variable ND acts like sunglasses for your lens, allowing you to cut that light down so you can keep the aperture at f/0.95 to achieve that signature “paper-thin” depth of field and creamy bokeh without blowing out the highlights of your image.
Will a Variable ND affect the bokeh of the Speedmaster?
A high-quality VND like the PolarPro or B+W will have a negligible effect on the bokeh. However, extremely cheap filters can introduce “bokeh fringing” or slightly muddy the circular highlights. Because the Speedmaster’s bokeh is its main selling point, using a premium filter is essential to ensure the out-of-focus areas remain smooth and don’t take on a “grainy” or “busy” texture caused by poor glass quality.
Is the 2-5 stop or 6-9 stop better for this lens?
For the f/0.95 Speedmaster, the 6-9 stop range is generally more useful if you plan to shoot in direct sunlight. A 5-stop reduction is often not enough to keep your shutter speed under control at f/0.95 in bright conditions. However, if you mostly shoot in the shade or during “Blue Hour,” the 2-5 stop range is better as it provides more granular control without the risk of over-darkening your corners.
Does the Mitakon III suffer from vignetting with filters?
The Mitakon 50mm f/0.95 III has relatively large glass elements, but with a 67mm thread, it doesn’t typically suffer from heavy vignetting with standard-thickness filters. However, to be safe, I always recommend “slim” or “XS-Pro” frame designs. If you stack a Variable ND on top of a UV filter, you will definitely see dark corners. Always remove your UV filter before attaching a Variable ND to this lens.
Final Verdict
If you are serious about getting the most out of your Mitakon 50mm f/0.95 III, don’t skimp on the glass. The PolarPro PMVND II is the best companion for this lens, offering the density needed for f/0.95 daylight shooting without ruining the image quality. For those on a budget, the K&F Concept True Color offers 90% of the performance for much less. Regardless of your choice, ensure you pick a 67mm size and aim for higher density ranges (5-9 stops) to truly master the light.