S70 (7.1MP) = 感光元件大小： 1/1.8 吋

S60 (5.0MP) = 感光元件大小： 1/1.8 吋

S50 (5.0MP) = 感光元件大小： 1/1.8 吋

A80 (4.0MP) = 感光元件大小： 1/1.8 吋

A98 (5.0MP) = 感光元件大小： 1/1.8 吋



All the sonsor size of the above cameras is the same (1/1.8 吋), however, S70 has owned 7.1MP, that means there is not enough space for 7.1MP to store inside the small sensor. in other words there may be lot of noises appeared when the sensor becomes hot.