Switching my Canon 400D. a few questions regarding compability to lenses


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Mar 3, 2012
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Hey there all, this is my very first post on such great and big photo comunity,

So here is the deal:
I have in the moment a 5 year old Canon EOS400D which i use and have had fantastic results since about 2 years.
But I find its time enough to change my gear to something new, more advanced that shall provide me more juice in my pictures.
Therefore I'm thinking to get a new camera, the EOS550D.
Problem is I'm bought two very nice lenses;

-Canon EF 100mm f/2.8 MACRO USM
-Canon EF 24-70mm f/2.8 L USM

But will these lenses compatible with the EOS400D and EOS7D be also compatible with EOS550D?
Hope you guys can help, Cheers and thanks in advance!
Yes, all Canon EF lenses are compatable w/ any Canon EOS camera, film or digital. Canon EF-S lenses are only compatable w/ the Canon EOS crop sensor digiatl SLR's.
Thank you for your reply Canuk.
What about the sensors and the full frame deal? Will the lenses change their ranges of focus due to the swap of sensors from one model to another? I'd appreciate the help!

Thank you very much once again.

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