K&F Filter Blue Streak Anamorphic Nano-X MRC 52mm screw-in optical filter

K&F Filter Blue Streak Anamorphic Nano-X MRC 52mm is a screw-in optical filter designed for lenses with a 52mm thread. The filter combines an anamorphic optical design with multi-resistant coating (MRC) and Nano-X surface treatment to reduce stray reflections, simplify cleaning, and produce characteristic horizontal flare effects. It is intended for cinematography and creative photography where anamorphic highlights, preserved contrast and front-element protection are required.

Advantages

The Nano-X surface treatment repels dust, oil and moisture, making the filter easier to maintain while reducing cleaning-related abrasion on the coating. Multi-resistant coating minimizes ghosting and internal reflections to preserve image contrast and color fidelity. The anamorphic element creates horizontal blue streak flares and a slightly widened cinematic look without significant loss of sharpness when used at typical working apertures. The screw-in metal frame provides secure attachment to 52mm lens threads and maintains compatibility with common lens caps and hoods.

Suitable for

• Cinematography for producing anamorphic flare and cinematic highlights
• Portrait and event photography where controlled highlights and lens protection are desired
• Outdoor and low-light shooting to reduce stray reflections and improve contrast
• Filmmakers and hybrid shooters seeking a compact screw-in solution for anamorphic effects

Key specifications

• Mount type: screw-in filter for 52mm lens threads
• Optical effect: anamorphic horizontal streak/flare
• Surface treatments: Nano-X hydrophobic/oleophobic surface
• Coating: multi-resistant coating (MRC) to reduce reflections
• Frame material: metal screw ring for secure attachment
• Primary functions: flare generation, front-element protection, contrast preservation

How to use

Screw the filter onto a lens with a 52mm thread until it is firmly seated, taking care not to cross-thread. Compose and expose as usual; the filter produces horizontal streak flares on bright point light sources and can subtly affect highlight shape in backlit scenes. For video, test aperture and focus settings to find the desired amount of flare and preserve acceptable sharpness. Clean the outer surface with a soft microfiber cloth and a suitable optical cleaner to maintain the Nano-X coating performance.

Usage recommendations

To achieve consistent anamorphic flare, position bright light sources slightly outside the frame or at the edges; shooting at moderate apertures tends to retain detail while producing stronger streak effects. Avoid aggressive scrubbing when cleaning; use gentle circular motions with dedicated lens cleaning solutions to protect the MRC and Nano-X layers.