EOS-3 AF sensors sensitivity

[kzhang]

AF sensitivity depends on the chip being used. the much cheaper CMOS sensor
(used in EOS 3)
can never  match the sensitivity of the CCD sensor (used in Maxxum 9 and
canon '1' series models
i believe) , that's physics...
OTOH although CMOS isn't as light sensitive as CCD, the noise is patterned
therefore
can be successfully reduced with software. Canon has been very successful
in this regard that's why 10D etc D-SLR has great low-noise performance.

best
kz

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