MagVario Magnetic Filter – Lumina-X Diffusion Series (Star Mist & Cine Mist)

Lumina-X Ultra-Low Reflection Coating — Pursuing the Pinnacle of Light

Diffusion filters like Cine Mist and Star Mist deliver their most dramatic glow effects when shooting toward light sources with wide apertures — precisely the conditions most prone to flare and ghosting. Starting with the MagVario magnetic filter system, STC has upgraded all filters to feature 0.1% ultra-low reflection coating, making your filter a flare-free partner in any shooting scenario.

Lumina derives from the Latin lumen (light), and X represents our pursuit of the ultimate. STC's Lumina-X coating is our commitment to delivering the finest light to every photographer — with more ultra-low reflection filter series to follow.

Ansel Adams said: "A good photograph is knowing where to stand."
STC believes a filter can transform what you see into the image in your mind.

Choosing the MagVario magnetic filter system gives professional photographers the speed to instantly select and swap the right filter — so you never miss the perfect composition worrying about filter changes. Combined with functional filter stacking, it brings the image in your mind to life.

Embedded Design — Perfect Integration

Unlike other magnetic filter systems that use step-up adapter rings, STC MagVario's magnetic base ring embeds directly into the lens diameter — no upsizing or adapter rings required. This means:

• Zero vignetting at 15mm ✓ — Single diffusion filters mount directly without concern; stacking diffusion with polarizing filters requires the slim front element.
• Direct use of original lens hoods ✓ — No compromises, full original functionality preserved.
• Significantly reduced impact and drop risk ✓ — Flush-fit design with no protrusion, stable and secure.
• Ultra-thin, maximum light-gathering frame ✓ — Single filter adds only 2mm thickness; dual-layer stack equivalent to other brands' single layer.
• Transform traditional screw-mount filters ✓ — Screw the magnetic base ring onto other threaded filters to enjoy the speed and safety of magnetic lens caps. (Not recommended for ultra-thin frame threaded filters with insufficient edge depth.)

No additional tools are needed to install the magnetic base ring — simply use the filter front cap and leverage the super-strong magnetic force for effortless installation.

Stack & Combine — Multiply Your Creative Options

Leverage the power of magnetic stacking by combining Cine Mist or Star Mist with CPL (circular polarizer) or CND (variable ND + polarizer) to add exposure control and polarization to your diffusion shots — ideal for both stills and video.

Scenario A: Cine Mist 1/2 + CPL = Soft polarizer — softens lines, diffuses light, reduces contrast, and eliminates selective reflections.

Scenario B: Star Mist 1 + CND = Star Mist variable ND polarizer — softens lines, diffuses light, maintains contrast, and enables wide-aperture (f/1.4) video shooting in bright sunlight with controlled shutter speed. (Rotate the top filter to adjust ND value; rotate both together to increase polarization.)

Scenario C: Cine Mist 1/2 + Cine Mist 1/4 = A softer diffusion effect than 1/2 alone.

• MagVario filters support original lens hoods even when multiple filters are stacked.
• We recommend placing diffusion filters (Cine Mist, Star Mist) on the outermost position for the best diffusion effect.
• To reduce diffusion intensity, mount the diffusion filter directly on the lens and stack CPL or CND on top.
• Stacking multiple filters may have some impact on image quality — use as needed.
• If vignetting appears when stacking, too many filters are blocking the lens's maximum field of view. The wider the lens, the fewer filters can be stacked.

Shop CND Three-Function Filter for stacking →
Cine Mist Filter — Detailed Introduction →
Star Mist Filter — Detailed Introduction →

Additional Premium Features

• Ultra-low reflection coating effectively reduces flare for confident shooting toward the sun.
• Complete ring of maximum-strength magnets for secure attachment without slippage.
• Perfect lens-matched dimensions for effortless, ultra-portable carrying.
• Differentiated side knurling patterns for tactile identification of different filters.
• Dedicated ultra-thin magnetic front + rear caps with velvet interior directly protect filter surfaces; carry outdoors without cases, pocket-store without scratching concerns.
• Every filter passes parallel light tube MTF resolution testing before shipment.
• Two complete front/rear cap sets allow one lens to use the magnetic lens cap while filters retain protective caps.
• All filter products and caps clearly marked with diameter to prevent mix-ups.

Cine Mist vs. Star Mist: Filter Selection Guide →

Important Disclaimers

Please follow the product instructions carefully when installing the magnetic base ring. Non-standard installation will result in reduced magnetic force at the intended position. After installation, standard internal pinch lens caps and other threaded filters or adapter rings cannot be used. To use other threaded adapter products, you must first remove the magnetic base ring. Any damage caused by non-compliant installation is not covered by warranty.

The ultra-thin frame design requires careful handling. Damage from drops or impacts causing deformation is not covered under warranty.

When using step-up adapter rings (larger to smaller diameter), please verify the adapter's internal thread depth. If the filter attaches but shows a visible gap, the thread depth is insufficient. If there is no gap but magnetic force is noticeably reduced, the thread is too deep. Both situations increase the risk of the filter or lens cap falling from incidental contact. Do not use non-cap installation methods with adapter rings.

If your lens has previously suffered an impact and the magnetic base ring cannot be installed smoothly, please stop installation. If the filter does not sit flush after installation, please contact us. These situations may indicate slight thread deformation that could cause the ring to slip out of position, reducing magnetic force and creating risk. If the ring is difficult to remove counterclockwise, stop and contact us — cross-threading will cause it to tighten further.

Please read all Important Notes below before purchasing.