What Ross said.

And, a caution that your canned results may or may not look like what you expect from a can of tomato juice bought commercially.  Most likely will not.  But the taste will be far superior.

What kind of juicer are we talking about?  We have several topics here about using steam juicers, for instance.

Ahhh, then you already know a whole lot more than I do about juicing!  (We aren't juice drinkers, so whatever we do end up with as a result of some other process usually becomes a soup base here.) 

Please let us know how it works for you.  We always seem to want to share in everyone else's experiences!