Holder, adapter ring and grey graduated (half) filter for 49mm lenses — Massa SB3737

The Massa SB3737 set contains a filter holder, an adapter ring for 49mm lens threads and a grey graduated (half) rectangular filter. It is designed to accept rectangular graduated filters in front of lenses with a 49mm filter thread, enabling controlled darkening of the sky or other bright areas to balance exposure in landscape and architectural photography. The grey graduated filter provides a gradual transition from neutral density to clear, allowing smoother blending between bright and dark regions in a single frame.

Advantages

The compact holder and adapter ring allow quick mounting on lenses with a 49mm thread without requiring a large dedicated filter system. The rectangular half graduated filter offers precise exposure control across the frame while preserving colour neutrality and image detail. This combination reduces the need for heavy post-processing by correcting high dynamic range scenes in-camera, and the modular design supports easy replacement or use with other compatible rectangular filters.

Suitable for

• Landscape photography where the sky is significantly brighter than the foreground
• Architectural exteriors with uneven lighting
• Seascapes and sunsets requiring graduated exposure control
• Travel photography when balancing bright skies and darker foregrounds

Key specifications

• Compatibility: lenses with 49mm front filter thread when using the included adapter ring
• Filter type: grey graduated (half) rectangular filter with a soft transition
• Holder: single-slot rectangular filter holder compatible with the included filter size
• Material: lightweight construction suitable for field use (holder and adapter ring)
• Intended use: in-camera exposure balancing for wide-angle and standard lenses

How to use

Screw the adapter ring onto the lens thread, then attach the filter holder to the adapter ring. Slide the grey graduated rectangular filter into the holder and position the transition line to match the horizon or bright area you need to darken. Adjust rotation and vertical position of the filter to achieve the desired balance between sky and foreground. Make exposure and composition adjustments as needed; the filter reduces brightness in the upper portion of the frame without affecting the lower area.

Usage recommendations

Use live view or a tripod to precisely align the graduated edge with the horizon for the cleanest results. When shooting at wide apertures or with extreme wide-angle lenses, check for any vignetting and move the filter slightly if necessary. Clean the holder and filter surfaces with a soft cloth before use to avoid artifacts, and store the set in a protective pouch between shoots.