Tube Ring Canon

Tube Ring Canon
No official Canon sells rings round?

Just wondering because I want to shoot in true macro, but can not afford an expensive lens if you do not make me too I was thinking if they sold the official extension tubes

I do not think they do. But you can get for cheap on eBay. If you are looking for tubes extension, find Kenko. They seem to be the most popular.

Canon 7D Shutter Speed Test! 8 Frames p/s! 18 mp!