Lens Base Ring with Lid Freewell FW-L1-BL55 55mm for Real Locking VND

The Freewell 55 mm base ring with lid for Real Locking VND is a precision-milled aluminum adapter designed to securely and quickly attach Freewell Real Locking VND/CPL filters to a 55mm lens thread. It forms the foundation of the Real Locking system, providing a solid connection between the lens and compatible filters, caps and accessories while allowing the system to be adapted to smaller diameters.

Advantages

The base ring ensures reliable mechanical connection and compatibility across the Freewell Real Locking filter range. The included protective lid features a built-in NFC module for instant access to manuals, warranty and support information via smartphone. Both parts are lightweight and manufactured to precise dimensions for repeatable mounting and safe transport.

Key specifications

• Manufacturer: Freewell
• Product code (MPN): FW-L1-BL55
• Compatible thread size: 55 mm
• Ring outer diameter: 89.3 mm
• Ring thickness: 4.8 mm
• Ring weight: 5.7 g
• Cover outer diameter: 102.9 mm
• Cover thickness: 6.1 mm
• Cover weight: 25.9 g

How to use

Screw the Freewell 55 mm base ring onto the lens filter thread until it is seated evenly and secure. Attach Real Locking VND or CPL filters by aligning and locking them to the base ring according to the filter system instructions. To access digital information, bring a smartphone close to the cover's NFC area; the phone will read available manuals, warranty and support links. Use the protective lid to shield the lens or mounted filter from dust and scratches during storage or transport.

Recommendations

Use the 55 mm base ring as part of a matched Freewell Real Locking set; if you need to use the system on lenses with different thread sizes, choose additional Freewell base rings in the appropriate diameters (e.g., 49 mm–82 mm) to maintain compatibility. Keep the NFC cover clean and avoid strong impacts to preserve the module and protective function.