Massa step-up adapter ring 37mm to 52mm SB2032 for lens filters and accessories

The Massa step-up adapter ring 37mm to 52mm SB2032 converts a lens front thread of 37mm to a 52mm thread, allowing the attachment of 52mm filters and accessories to lenses with smaller threads. The adapter is designed to provide a secure, centered connection between lens and filter or other front-mounted accessories without modifying the lens. Metal construction offers mechanical stability and repeatable mounting for photographic use.

Advantages

This adapter ring enables compatibility between lenses with 37mm front threads and a wide range of 52mm filters, hoods or converters, reducing the need to buy duplicate filter sizes. Its metal build ensures a rigid, durable connection with low risk of cross-threading or loosening during use. The slim profile minimizes added bulk and vignetting on most lenses while keeping the optical axis aligned for consistent image quality.

Suitable for

• Attaching 52mm screw-on filters (polarizers, ND, UV) to lenses with 37mm threads
• Using 52mm lens hoods or protective caps on lenses with smaller front threads
• Mounting 52mm close-up lenses or converters on compact lenses
• Standardizing filter sizes across a kit of lenses

Key specifications

• From thread size: 37mm (female side attaches to lens)
• To thread size: 52mm (male side accepts filters and accessories)
• Material: metal construction for strength and durability
• Profile: low-profile design to limit vignetting on wide-angle lenses
• Finish: matte surface to reduce reflections

How to use

Align the adapter’s 37mm female thread with the lens front and rotate clockwise until firmly seated; avoid overtightening. Once attached, screw the 52mm filter or accessory onto the adapter’s outer thread until secure. To remove, rotate the filter or adapter counterclockwise. Follow normal care procedures for metal accessories and inspect threads periodically for debris or wear to maintain smooth mounting.

Usage recommendations

For best results, use the adapter with filters and hoods that are matched to the optical coverage of your lens to minimize vignetting. When using wide-angle lenses, check the image corners after mounting larger accessories. Store the adapter in a protective pouch when not in use to prevent scratches and preserve thread integrity.