May 4, 2001

Here is the mean Quantum Efficiency of the MegaCam CCD's
(as measured by CEA) as a function of the wavelength

(nm)   %

350   43.0
400   74.2
450   85.8
500   89.2
550   89.2
600   87.9
650   84.1
700   77.4
750   67.6
800   54.8
850   40.7
900   26.5
950   13.3
1000   4.3