The effective focal lengths will be changed, so the 28-80mm will be 45-128mm instead. That's not very wide at all. The 80-200mm will be a 128-360mm. Because of the crop sensor, you have to multiply all the lenses by 1.6 to get the effective focal length of a 35mm.
I am considering purchasing a Canon - EOS Digital Rebel XSi 12.2-Megapixel Digital SLR Camera. I can purchase just the body. Are there any disadvantages to using my Cannon EF lenses from my non-digital camera?
I own two lenses
Cannon Zoom Lens EF 28-80
Cannon Zoom Lens EF 80-200