Vello AF Extension Tube Set for Canon EOS test

Here is a more controlled test of the Vello AF Extension Tube. All test shots done at 200mm using different rings.

The Auto Extension Tube Set for Canon EOS from Vello allows your lens to focus closer than its normal minimum focus distance. By placing distance between your camera body and lens, focusing distance is shortened and the effect of magnifying your subject is created. Extension tubes enable macro performance for lenses not otherwise able to focus that close, and are also suited for close-up portraiture.