Camera filter set Massa COKIN 2-in-1, threaded 67mm adapter, model SB3622

The Massa COKIN 2-in-1, threaded 67mm adapter (model SB3622) enables photographers to use COKIN-style square and rectangular creative filters with lenses that accept 67mm screw-in filters. This adapter converts a standard 67mm filter thread into a holder-compatible mount, allowing combination of graduated neutral density, color, and special-effect filters alongside conventional screw-in filters. The kit is intended for photographers working in landscape, architecture and portrait genres who need flexible control over light, color and contrast without changing primary optics.

Advantages

The adapter provides dual compatibility with both COKIN-style filter systems and standard 67mm threaded filters, simplifying workflow when switching between screw-in and slot-style filters. Its threaded connection offers secure attachment to lenses with 67mm threads while maintaining alignment for graduated filters and precise positioning. The design conserves space on the lens front and reduces vignetting for many wide-angle lenses when used with thin-profile filters.

Suitable for

• Landscape photography requiring graduated neutral density or color control
• Architectural photography where perspective and exposure balancing are needed
• Portrait sessions using color or diffusion filters for creative effects
• Use with square or rectangular COKIN-style filters and 67mm screw-in filters

Key specifications

• Mount type: 67mm threaded adapter compatible with COKIN-style filter holders
• Compatibility: Designed for lenses with 67mm filter thread
• Filter format supported: square/rectangular COKIN-style filters and 67mm circular screw-in filters
• Material: durable lightweight construction suitable for field use
• Use cases: supports graduated neutral density, color, and creative effect filters

How to use

Attach the adapter by screwing it into the lens’ 67mm filter thread until it is secure but not overtightened. Slide the COKIN-style filter holder onto the adapter to position square or rectangular filters; adjust vertical placement to align graduated filters with the horizon or subject area. For screw-in filters, thread them directly onto the adapter’s outer thread as with any 67mm filter. Re-check alignment after changing filters and before shooting to avoid light leaks or vignetting.

Usage recommendations

Use thin-profile screw-in filters where possible to minimize vignetting on wide-angle lenses. When working with strong graduated or dense neutral density filters, bracket exposures and review histograms to ensure retained highlight and shadow detail. Store filters and the adapter in protective pouches to prevent scratches and dust when not in use.