Telescope Camera Adapter M42 5mm 10mm 15mm 20mm T2 Telescope Extension Tube Adapter for Extending Focal Distance in Astrophotography

Male thread and female thread are M42x0.75mm; This extension tube can solve spacing problems in astrophotography and eliminate a series of focusing problems M42 extension tube includes 3 different lengths- 5mm 10mm 15mm 20mm; required spacing can be achieved by combining multiple extensions of different lengths, you can use 1 piece 2 pieces or 3 pieces of extension rings according to your needs All-metal construction and aluminum anodizing process makes the M42 extension tube can be used for a long time This extension tube allows you to get the right image scale or exact spacing required for reducers or field trays The extension tube allows you to change the focus length of astrophotography in an instant, which is very convenient for outdoor use ...