Quote Originally Posted by jks_photo


sorry.


that's "will it help me get better PICTURES when i shoot at high ISO setting such as ISO 800??"
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what about still use your XTi, ISO 200, but with some faster prime lens, to begin with, I recommend 85mm 1.8. or 50mm 1.4(people in this forum posted very nice pictures with $100 50mm 1.8), these lenses are great for low light , sharper than zoom lenses and can produce nice bokeh which your 24-70 can't. the IQ of XTi+ISO200+50mm1.4 should not be a lot worse than IQ of 5DII+ISO800+24-70mm at 50mm/f2.8 if not better.