Canon SL1 Lens

[el_em_en_oh]

Hi guys...|

I'm a beginner, and recently purchased an SL1. Very small body, but I like it, as both my wife and I can use it (she has extremely small hands).

I purchased a TAMRON 18-200mm, as an all-in-one vacation lens, and was very happy with the results (ultra wide-angle, as well as decent zoom capabilities). I also have the CANON kit lenses that came with the bundle (18-55mm & 75-300mm), as well as a CANON 50mm lens I found in a garage sale that just happened to fit.

What other Canon models will these lenses fit on?

I was to get another camera body, for myself, but would like the lenses to be interchangeable between my wife's SL1 and whatever I happen to get. I know it's got somewthing to do with EF and EF-S, but that's about all I know.

Can someone help?

LMNO

[el_em_en_oh]

Sothat begs the question, what is the 5D target market, vs the 7D target market.

And the 1D... i'm assuming that's for professional, which I'm clearly not.

I just want to be able to take excellent quality pictures, that don't necessarily have to be the quality of a National Geographic photograph (but if they turn out that way, so much the better).

The 7D is what I THINK i'm after, but maybe not?