Svbony fully metal M42 extension tube kit of four different length of 5mm, 10mm, 15mm, 20mm
In Stock
1. All metal construction and anodized aluminum material adapter, durable for a long time use
2. Using this extension tube can adjust the appropriate distance to get a clear image
3. The extension tube has a M42 male thread and a M42 female thread for solving diatance problems in astrophotography and eliminating a range of focusing problems