Compact 7mm extension tube for M42X1mm threaded lenses that adds close focus capability while remaining durable and travel friendly. Key benefits Enables macro and detailed photography by moving the lens farther from the sensor to reduce minimum focus distance and increase subject magnification. Full metal construction for long lasting use and reliable performance in varied shooting conditions. Metal body maintains precise thread alignment and resists wear from repeated mounting. Direct compatibility with M42X1mm threaded lenses, making it suitable for a wide range of vintage and modern lenses and camera systems that use M42 connections. Lightweight and compact design keeps added bulk and weight to a minimum, so it is easy to carry in a kit bag and quick to install when a closer view is needed. Features and function 7mm extension length provides a meaningful close focus improvement for portraits of small subjects, product detail shots, and other macro work without requiring a dedicated macro lens. Secure M42X1mm threads ensure a stable, repeatable connection between lens and camera or adapter. Built from metal for dependable field use and consistent mechanical fit over time. Use scenarios Product photography: Capture fine texture and small details on jewelry, watches, or electronics for online listings and documentation. Nature and macro: Photograph flowers, insects, and small natural subjects with closer focus and better framing using existing lenses. Vintage lens adaptation: Pair with M42 lenses on mirrorless camera bodies to expand creative close focus possibilities without adding heavy equipment. Practical, reliable, and simple to use, this 7mm M42X1mm extension tube is a straightforward way to add close focusing ability to your lens collection.