This Cokin 52mm Adapter Ring (with 0.75mm pitch thread) is specifically designed to attach Cokin's ""Z-PRO"" series filter holder to lenses with a 52mm filter thread.
LMA 52mm Gauge Mounting Bracket - Holds 1 x 52mm gauge
Cokin Z025 Blue (82C) Filter
Cokin P-Series NUANCES Extreme Soft Reverse Graduated ND8 (3 Stops)
Cokin 95mm Nuances UV Protector
Cokin X467 67mm X-PRO Series Adapter Ring
Cokin Expert Kit plus Holder and Rings