Lens Adapter Massa SB899 — step-up ring 30.5mm to 37mm, silver

Massa SB899 is a metal step-up ring that converts a 30.5mm lens thread to a 37mm thread, finished in silver. It enables attachment of 37mm filters, lens hoods, or other accessories to lenses and equipment with a 30.5mm filter thread. The adapter is compact and designed for straightforward, low-profile use without affecting optical alignment.

Advantages

The step-up ring is made of metal for durability and stable fit, and its silver finish matches equipment aesthetics while resisting wear. By allowing larger 37mm filters to be used on 30.5mm lenses, it reduces the need to purchase multiple filter sizes. The low-profile design minimizes vignetting on most lenses while providing secure threading for reliable mounting.

Suitable for

• Photographers who want to use 37mm filters on lenses with a 30.5mm thread
• Attaching 37mm screw-on accessories such as caps, adapters, or small hoods
• Studio and travel setups where consolidating filter sizes is advantageous

Key specifications

• Material: metal construction for robust mounting
• Finish: silver
• From thread: 30.5mm female to male mounting interface
• To thread: 37mm female/male compatible for 37mm screw-on accessories
• Profile: low-profile design to reduce risk of vignetting

How to use

Screw the Massa SB899 step-up ring onto the lens front thread of 30.5mm by turning it clockwise until it seats firmly but without overtightening. Once mounted, attach the 37mm filter or accessory by screwing it into the adapter's 37mm thread. To remove, unscrew the filter first and then the adapter from the lens. Handle threads gently and keep them clean to ensure smooth attachment and prevent cross-threading.

Usage recommendations

For best results, check for vignetting when using wide-angle lenses; the low-profile design minimizes but may not eliminate shading on extreme wide angles. Keep threads free of dust and grit and avoid excessive force when tightening to preserve thread integrity.