VILTROX DG-C Canon EOS EF and EF-S Autofocus Macro Extension Tubes

We do not recommend combining 2 or 3 rings at the same time if the focal length is less than 70mm.
Autofocus is easy when mounting ONE ring, but difficult for 2 or 3.
We suggest setting your camera to MF.
It can be used alone or combined, which can achieve 7 different types of magnification and work perfectly with the camera's autofocus.
Pure copper pin, perfect match.
Metal interface, AF, better transmission.
Box Contents:
1x 12mm Extension Tube
1x 20mm Extension Tube
1x 1x 36mm Extension Tube
1x Front Cover
1x Back Cover