Adapter ring Massa 52mm to 55mm reverse mount SB541

The Massa 52mm to 55mm reverse mount adapter ring SB541 converts a 52 mm filter or accessory thread to a 55 mm thread using a reverse-mount design. It provides a mechanical interface for attaching filters, step-up/step-down accessories or extension items when lens and accessory threads differ. The adapter is intended for photographers who require a simple, durable thread conversion without modifying optical elements or using additional adapters that add length to the lens assembly.

Advantages

This reverse-mount adapter offers a compact and robust solution for matching a 52 mm lens or filter thread to accessories with a 55 mm thread. The mechanical design keeps the optical path unchanged while enabling secure attachment of filters and accessories. Its metal construction provides wear resistance and reliable thread engagement for repeated mounting and dismounting.

Suitable for

• Attaching 55 mm threaded filters to lenses or accessories with a 52 mm thread
• Using step-up or step-down accessories that require a 55 mm mount
• Connecting extension accessories or adapters when direct threading is needed

Key specifications

• Input thread size: 52 mm (female side for reverse mounting)
• Output thread size: 55 mm (male side to accept accessories)
• Mount type: reverse-mount mechanical adapter
• Material: metal construction for durability and thread integrity
• Finish: matte or anodized surface to reduce reflections (manufacturer finish may vary)
• Weight: lightweight, designed to minimize additional load on the lens

How to use

Screw the adapter onto the 52 mm thread on the lens or onto a 52 mm accessory by rotating it clockwise until it seats securely. With the adapter in place, thread the 55 mm filter or accessory onto the exposed 55 mm side in the standard direction until hand-tight. Check that both connections are properly engaged to prevent cross-threading. Remove the adapter by unscrewing each side in reverse order. No tools are required for normal use; avoid excessive force to preserve thread integrity.

Usage recommendations

For best results, inspect threads for dirt or grit before mounting and clean gently if necessary. When using heavy accessories on the adapter, support the accessory to avoid putting strain on the lens mount. Store the adapter in a dry place to prevent corrosion and keep protective caps on when not in use.