K&F Blue Streak Anamorphic Nano-X MRC 55mm Lens Filter (SB7871)

The K&F Blue Streak Anamorphic Nano-X MRC 55mm Lens Filter is an optical accessory designed to produce anamorphic compression and cinematic horizontal flares on stills and video when mounted on lenses with a 55 mm thread. Engineered by K&F, the filter combines an anamorphic optical element with a multi-resistant coating (MRC) finish to preserve contrast, reduce unwanted reflections, and maintain color rendering while creating characteristic streak highlights across the frame.

Advantages

This anamorphic 55mm lens filter creates pronounced horizontal lens flares and slight image compression without altering lens mechanics, enabling a cinematic look using threaded mounting. The Nano-X surface treatment provides water and oil resistance and helps prevent smudges while the MRC reduces internal reflections for better contrast. The compact, screw-in design is lightweight and easy to attach to compatible lenses, making it suitable for location work and handheld setups.

Suitable for

• Filmmakers seeking anamorphic flare and widescreen cinematic aesthetics with standard prime and zoom lenses that accept 55 mm filters
• Photographers who want horizontal streak highlights in portrait, landscape, or creative studio work
• Content creators capturing video on mirrorless or DSLR bodies with 55 mm threaded lenses

Key specifications

• Filter type: Anamorphic streak (horizontal flare) optical element
• Mount: Screw-in threaded mount sized for 55 mm lens threads
• Coating: Multi-resistant coating to reduce reflections and resist water and oil
• Optical effect: Horizontal flare and mild compression characteristic of anamorphic optics
• Construction: Slim, lightweight circular filter designed for front-of-lens attachment

How to use

Screw the filter gently onto the front threads of a compatible 55 mm lens until secure; avoid overtightening. Compose and focus as usual: the anamorphic element modifies highlights and produces horizontal streaks primarily in bright light sources while preserving the central image. For video, check focus and framing since the perceived compression and flare can alter subject proportions and highlight placement. Clean only with appropriate lens-safe solutions and a microfiber cloth to preserve the Nano-X coating.

Usage recommendations

Use the Blue Streak Anamorphic Nano-X MRC 55mm filter when shooting scenes with point light sources, specular highlights, or backlit subjects to achieve cinematic horizontal streaks and a subtle anamorphic character. For minimal vignetting, pair with lenses that match the filter thread size and consider using neutral exposure settings or lens hood adjustments to control unwanted flare intensity.