Extension Macro Rings with M42 Thread Massa SB2242 — set of intermediate rings for close-up photography

Massa SB2242 extension macro rings with M42 thread are a set of intermediate rings designed to increase the distance between a camera lens and the sensor, enabling higher magnification for close-up and macro photography. The rings work with lenses and adapters that accept an M42 mount and provide a simple mechanical solution to reduce minimum focusing distance without changing optical characteristics of the lens. The set is intended for photographers seeking greater detail in product shots, nature close-ups, and hobby macro projects.

Advantages

The Massa SB2242 rings offer a straightforward mechanical method to achieve higher magnification without introducing additional glass elements. Designed with an M42 threaded interface, they maintain lens alignment and preserve image quality while extending the flange distance. The set is compact and lightweight, making it easy to add or remove as needed. Because the rings are passive, they are compatible with a wide range of manual and adapted systems that accept M42 mounting.

Suitable for

• Product photography and detail shots of small objects
• Nature and macro photography of insects, flowers, and textures
• Hobby and tabletop photography such as coins, stamps, and electronics
• Experimental close-up work with vintage or adapted M42 lenses

Key specifications

• Mount type: M42 threaded interface for lens and camera/adapters
• Function: increases lens-to-sensor distance to enable macro magnification
• Construction: metal rings for secure mechanical connection and alignment
• Compatibility: suitable for lenses and adapters that accept M42 mounting
• Weight and dimensions: compact, lightweight design for easy handling and transport

How to use

Attach the appropriate ring or combination of rings between the M42 lens and the adapter or camera body, ensuring threaded connections are fully engaged and secured. Compose and focus manually, as using extension rings reduces or eliminates infinity focus and often disables electronic aperture control on adapted systems. Adjust working distance and magnification by changing the number of rings or the focal length of the lens. Use a tripod or stable support when working at high magnification to minimize camera shake and maintain sharp focus.

Usage recommendations

When using Massa SB2242 extension rings, check lens compatibility and ensure threads are clean before mounting. For best results at high magnification, use a small aperture for greater depth of field, controlled lighting or flash for adequate exposure, and focus stacking if greater depth of field is required.