Macro Extension Tube Adapter Ring (Manual Focus) for canon/ nikon
FOR CANON/ Nikon
–This Macro Extension Tube is a Set of 3 optical tubes 9mm, 16mm, 30mm and male and female adapters. The tubes can be used individually or in any combination to obtain the desired magnification. 8 combinations are possible!
There are no electrical contacts in the extension tubes. Exposure has to be adjusted manually. Aperture control is not available if you use a lens which does not allow you to manually adjust the aperture (without an aperture ring).