Interesting "Angle of View" Article with helpful chart on B&H

Rich wrote:
On Jun 24, 7:51 am, Matt Clara wrote:
http://www.bhphotovideo.com/c/find/n...es-of-View.jsp
Many of you probably received the same email I did with a link to the
above article, but for those who did not, you may find this of
interest.

Notice the only two systems that have full lens support are FF and
4/3rds?

No.
I noticed that the only system that had full lens support listed was
4/3, and that at the tele end, that chart is rather silly anyway. If a
1200mm lens gives 2.5 deg AOV on 35mm, then there's "no approximate
millimetre equivalent" listed for any crop sensor camera (except 4/3).
For APS-c "none currently available" over 800mm equivalent?
I could swear I recently saw some test shots taken using Canon 1200mm
with a 40d. Perhaps I was dreaming.

Anyway, such charts seem destined to confuse those who might actually
need to use them, and are completely superfluous to those who don't.