K&F Spiral Motion Blur Effect Filter Halo Nano-B 77 mm (K&F SB9065)

The K&F Spiral Motion Blur Effect Filter Halo Nano-B 77 mm is an optical effect filter designed for screw-mount 77 mm lenses. It produces a spiral or radial motion-blur halo around bright points and light sources, enabling creative long-exposure looks without extended shutter times. The filter uses multi-coating to reduce flare and maintain contrast while shaping light into distinctive spiral patterns suitable for portraits, night scenes, cityscapes and artistic compositions.

Advantages

This K&F Nano-B filter creates consistent spiral and radial halos around highlights while preserving overall image clarity. Its screw-mount 77 mm construction provides a secure and universal fit for compatible lenses. The multi-coated optical surface helps control reflections and maintains color neutrality, reducing the need for additional post-processing. The filter is lightweight and portable, allowing photographers and videographers to add special effects quickly on location.

Suitable for

• Portraits with stylized light halos
• Night photography and urban light trails
• Creative long-exposure effects without neutral density glass
• Music, event and stage photography to emphasize highlights

Key specifications

• Mount diameter: 77 mm screw thread compatible
• Effect type: spiral / radial motion blur (halo)
• Optical finish: multi-coated surfaces to reduce flare and reflections
• Material: optical glass element in a metal ring
• Weight: lightweight, designed for handheld and tripod use

How to use

Screw the filter onto the front of any lens with a 77 mm filter thread until it is secure, taking care not to cross-thread. Compose the shot and frame bright points or light sources where you want the spiral halo to appear. Use normal shutter speeds or experiment with longer exposures; the effect originates from the filter rather than camera movement. Check focus and exposure after fitting the filter, as highlights will be redistributed into the spiral pattern and may require exposure adjustment.

Usage recommendations

For best results, position bright point lights or distant reflections within the frame and test exposure compensation to account for redistributed highlights. Combine the filter with prime or zoom lenses that accept 77 mm filters; avoid stacking heavy filters that may cause vignetting. Clean the multi-coated surfaces with a microfiber cloth and lens-safe solution to preserve image quality.