[Anatole]

350D vs 20D http://www.dpreview.com/reviews/canoneos350d/page19.asp

это не написано, а видно по шумам, они выше у 350Д
http://www.dpreview.com/reviews/canoneos350d/page19.asp
значит сенсор хуже, это мое имхо

А теперь читаем первоисточник:

As you can see there's almost no visible difference in noise levels between the EOS 350D and EOS 20D, our measured results (see graph below) show that the 350D's noise levels are very slightly higher between ISO 800 and 1600. Image sharpness is also virtually identical with a slight softening at ISO 800 and 1600 but nothing like the levels we have seen from other cameras.

no visible difference in noise levels = нет заметной разницы в уровнях шума

levels are very slightly higher between ISO 800 and 1600 = совсем чуть-чуть выше в диапозоне ISO 800 и 1600

Не надо дезинформировать читателей и выдавать желаемое за действительность.