SVBONY SV109 Extension Tube 24-35mm Variable Lock Tube with M48 Thread Applied to Astronomical Telescopes or Spotting Scope for Canon or Nikon SLR Camera Astrophotography
M48*0.75mm standard thread size interface; for solving spacing problems in astrophotography and eliminates a range of focusing problems
Fully metal construction and anodizing aluminum process design;Effectively extend the life of the Tube; and the feeling of use is more textured
24-35mm Variable Extension;While effectively solving the focus problem of the SLR camera during shooting;it can also avoid using more extension tube accessories
Use this extension tube for getting the correct image scale or the exact spacing required for reducers or field flatteners
Diversified use design;Applied to telescopes for astronomical photography of the mysterious universe;Applied to soptting scope to photograph the surrounding beauty