K&F Star (Gwiazdkowe) 3-in-1 Camera Filter Set — 49 mm, models X4 X6 X8

The K&F Star (Gwiazdkowe) 3-in-1 Camera Filter Set — 49 mm, models X4 X6 X8 is a trio of screw-in star filters for lenses with a 49 mm thread. Each filter produces a different starburst pattern—X4, X6 and X8—by diffracting point light sources to create visible rays extending from highlights. The set is intended for photographers who want to add controlled star effects to night scenes, cityscapes, portraits with specular highlights, and creative long-exposure work without complex post-processing.

Advantages

This 3-in-1 filter set provides three distinct star patterns in a compact, interchangeable format that screws onto any 49 mm lens thread. The optical elements are housed in slim metal frames to minimize vignetting on wider-angle lenses while maintaining secure attachment. Using optical star filters allows photographers to generate predictable diffraction effects in-camera, saving time compared with digital editing and providing a natural interaction with lens flare and highlights.

Suitable for

• Night and cityscape photography with streetlights and illuminated signs
• Portraits where specular highlights on jewelry or eyes are emphasized
• Architectural and event photography that benefits from controlled light rays
• Creative long-exposure and low-light shooting to enhance highlights

Key specifications

• Filter type: Screw-in star/diffraction filters (three variants: X4, X6, X8)
• Mount thread size: 49 mm compatible with standard 49 mm lens threads
• Frame material: Slim metal housing to reduce vignetting and ensure secure fit
• Optical effect: Produces 4-, 6- and 8-point starburst patterns from point light sources
• Use: Designed for in-camera creative light diffraction effects without digital processing

How to use

Screw the chosen filter (X4, X6 or X8) onto the front thread of a 49 mm lens until it is snug but not overtightened. Compose and meter the scene as usual; star filters work best when small, bright point light sources are present in or near the frame. For stronger, more defined rays, stop down the aperture to increase diffraction; for softer effects, open the aperture. When switching star patterns, remove one filter and attach another, taking care to keep the filter surfaces clean and free of fingerprints or dust to avoid unwanted artifacts.

Usage recommendations

Use a tripod for low-light and long-exposure situations to maintain sharpness while working with small apertures. Test different aperture settings and distances to the light source to control the intensity and length of the star rays. Store filters in a protective case when not in use to prevent scratches and preserve optical performance.