K&F STAR 2-in-1 Star Filter set for 72 mm lenses — 4-point and 8-point (72mm)

The K&F STAR 2-in-1 Star Filter set for 72 mm lenses is an optical accessory designed to produce controlled starburst effects from point light sources. This compact screw-on filter fits lenses with 72 mm filter threads and includes two interchangeable filter plates that create either a 4-point or an 8-point star pattern. The filter enables photographers to achieve visible diffraction highlights directly in-camera, useful for night scenes, cityscapes, concerts and festive lighting without relying on post-processing.

Advantages

This 2-in-1 star filter set provides practical flexibility by offering two star patterns in a single unit, reducing the need to carry multiple separate filters. The screw-on design ensures stable attachment to compatible lenses and maintains optical alignment for consistent results. Using a physical optical filter produces natural-looking starbursts that vary predictably with aperture and light source size, allowing photographers to control the intensity and shape of highlights through camera settings rather than editing software.

Suitable for

• Night photography and urban nightscapes
• Concerts and stage lighting
• Holiday and decorative lighting scenes
• Long exposure and creative city photography

Key specifications

• Mount: screw-on filter for 72 mm lens threads
• Filter type: optical star filter set with interchangeable plates
• Star patterns: 4-point and 8-point diffraction plates
• Material: multi-element optical glass and metal/compatible filter frame
• Compatibility: designed for lenses with 72 mm front thread diameter

How to use

Screw the filter onto the front of a lens with a 72 mm thread until it sits securely but without overtightening. Select the desired starplate position to produce either the 4-point or 8-point effect; the set provides a mechanism to switch plates or rotate the chosen plate into the optical path depending on the specific design. Compose and expose the shot with point light sources in the frame; smaller apertures (higher f-numbers) generally increase the prominence and definition of the star rays. Adjust focus and exposure as needed to balance ambient detail and the star effect.

Usage recommendations

The star effect is most pronounced with small, bright point light sources such as street lamps, point LED lights or distant highlights. For predictable results, begin testing at apertures from f/8 to f/16 and refine based on scene brightness and desired star intensity. Be mindful of flare and unwanted reflections when bright lights are near the frame edges; using a lens hood and checking angles can help reduce stray artifacts.