Best Variable ND Filter for Mitakon Zhongyi Speedmaster 50mm f/0.95 III
Taming the Mitakon Zhongyi Speedmaster 50mm f/0.95 III in broad daylight is a Herculean task. With that massive f/0.95 aperture, your sensor is flooded with light, often maxing out shutter speeds and ruining that buttery bokeh you bought the lens for. To shoot wide open at noon, a high-quality Variable ND is mandatory. After testing several 67mm options, the PolarPro PMVND Signature Edition II stands out as the ultimate companion for this “Dream Lens,” ensuring color accuracy without the dreaded X-pattern.
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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
When you are shooting with a lens as specialized as the Mitakon f/0.95, you cannot afford to put cheap glass in front of it. The PolarPro PMVND Signature Edition II (67mm) is specifically designed to eliminate cross-polarization (the “X” pattern) by using preset stop ranges. I find the 6-9 stop version particularly useful for this lens; it allows you to shoot at f/0.95 in harsh sunlight while maintaining a 1/50th or 1/100th shutter speed for cinematic video. The haptic feedback is a game-changerβyou can feel the stops clicking into place without looking. While it is a premium investment, the edge-to-edge sharpness and lack of color shifting justify the cost. The only minor drawback is the bulkier outer ring, which might prevent you from using your original lens cap, but PolarPro includes a custom Defender cover to solve this.
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K&F Concept Nano-X True Color View on Amazon View on B&H
The K&F Concept Nano-X True Color is an impressive feat of engineering for the price. Variable NDs often suffer from a yellow or green tint, but K&F has utilized a specialized coating that keeps colors remarkably neutral. On the Mitakon Speedmaster, youβll notice that skin tones remain natural, which is vital for portraiture. It offers 1 to 5 stops of light reduction, which is usually enough for most golden hour or overcast scenarios at f/0.95. The frame is made of aviation-grade aluminum and features “extra-grip” textures that make it easy to adjust even if you’re wearing gloves. While it doesn’t offer the extreme 9-stop density of more expensive filters, it hits the “sweet spot” of performance versus price. You’ll get very little vignette, even on the full-frame sensors the Speedmaster III is designed for.
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Urth Variable ND (2-400) View on Amazon View on B&H
If you’ve just spent your savings on the Mitakon Speedmaster and need a reliable filter without breaking the bank, Urth (formerly Gobe) is the way to go. Their 67mm Variable ND 2-400 offers a massive range of 1 to 8.6 stops. This is incredibly versatile; you can go from slight dimming to near-darkness for long exposures. However, be aware that at the extreme 8+ stop end, you might see some slight softness or the classic “X” pattern on very wide-angle lensesβthough on a 50mm like the Mitakon, this is much less of an issue. The build quality is surprisingly rugged, and for every filter purchased, Urth plants five trees. Itβs an honest, hard-working filter that gets the job done for casual street photography or experimental videography where absolute color perfection isn’t the primary goal.
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B+W 67mm XS-Pro Digital Vario ND View on Amazon View on B&H
B+W is a name synonymous with German precision, and the XS-Pro Digital Vario ND is no exception. Using world-renowned Schott glass, this filter ensures that the character of the Mitakon Speedmaster remains untouched. The Mitakon already has a unique “dreamy” wide-open look; the B+W filter preserves that delicate contrast without adding unwanted flare. The multi-resistant coating (MRC) makes it incredibly easy to cleanβoil and water simply bead off. I’ve used this in misting rain and was able to wipe it clean with a single swipe. It offers 1 to 5 stops of range with a very smooth rotation. While it lacks the hard stops of the PolarPro, its optical clarity is arguably the best in the business. It is a “buy once, cry once” piece of kit that will likely outlast the camera body you’re currently using.
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NiSi True Color Vario-ND (1-5 Stop) View on Amazon View on B&H
NiSi has quickly become a favorite among landscape photographers, and their True Color Vario-ND is a fantastic alternative to the PolarPro. What makes this special is the inclusion of a small, removable silver lever that allows for incredibly precise adjustments. When you’re racking aperture or focus on the Mitakon, being able to flick the ND filter with one finger is a huge ergonomic plus. The “True Color” technology here is legitimate; it avoids the warm cast that plagues many variable filters. It also includes a front lens cap that fits over the filter, which is a detail many brands overlook. If you find the PolarPro a bit too “heavy-duty” and want something sleek and highly functional for travel, the NiSi is a brilliant choice that won’t degrade your image quality.
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Buying Guide: How to Choose a Variable ND Filter
Comparison Table
| Product | Best For | Rating | Price |
|---|---|---|---|
| PolarPro PMVND II | Professional Video | β β β β β | Check |
| K&F Nano-X True Color | Enthusiasts | β β β β β | Check |
| Urth Variable ND | Budget Shoppers | β β β β β | Check |
| B+W XS-Pro Vario | Optical Purists | β β β β β | Check |
| NiSi True Color | Precise Control | β β β β β | Check |
Frequently Asked Questions
Why do I need an ND filter for an f/0.95 lens?
At f/0.95, the lens aperture is physically massive, letting in a huge amount of light. Even with a shutter speed of 1/8000s, your photos will often be overexposed in daylight. For video, where you usually want a shutter speed around 1/50s or 1/100s, it’s impossible to shoot wide open without an ND filter to “dim” the sun. It allows you to keep that shallow depth of field in any lighting.
Will a Variable ND filter make my Mitakon lens less sharp?
Any glass you put in front of your lens can technically affect sharpness. However, with a high-quality filter like the PolarPro or B+W, the degradation is virtually invisible to the naked eye. The Mitakon f/0.95 is already a somewhat “soft” and dreamy lens wide open, so a premium filter won’t noticeably change the rendering, whereas a cheap filter might add haze or blur.
What is the “X-pattern” in Variable ND filters?
Variable ND filters consist of two polarizing layers. When you rotate them too far, the polarization can cross in a way that creates a dark “X” shape across your image. This is most common on wide-angle lenses. Since the Mitakon is a 50mm (standard) lens, you are less likely to see it, but buying a filter with “hard stops” ensures you never rotate into the “danger zone.”
Can I use my original lens cap with these filters?
Most Variable ND filters have a slightly larger front element to prevent vignetting. This means your standard 67mm lens cap usually won’t fit onto the front of the filter. Some brands, like NiSi and PolarPro, include their own custom caps. If not, you may need to buy a larger generic cap (usually 72mm) or remove the filter before storing your lens.
Should I get the 2-5 stop or 6-9 stop version?
For the f/0.95 Speedmaster, if you plan on shooting in bright, direct midday sun, the 6-9 stop (or a wide range like 1-8 stops) is much more useful. A 2-5 stop filter is great for overcast days or late afternoon, but it often isn’t dense enough to handle f/0.95 when the sun is at its peak intensity.
Final Verdict
If you are serious about cinematic video or wide-open daytime portraits with the Mitakon 50mm f/0.95, the PolarPro Signature Edition II is the gold standard. It removes the guesswork and protects your image quality. For hobbyists who want to experiment without a massive bill, the K&F Concept True Color offers 90% of the performance at a fraction of the cost. Purists who demand the best glass should look no further than the B+W XS-Pro.