Typically a factor 20 more charge must be accumulated before noticeable bleeding occurs. This bleeding is stronger in the column direction for our CCDs. With some gain settings the data system limit of 65535 counts is reached prior to entering the CCD non-linear region. Care should be taken always to operate the CCDs in the linear part of their response. Read noise is low.
Cosmetics are superb.
QE is poor in the UV and U band photometry is not recommended. Note that these CCDs do not have the serial registers and amplifier areas shielded from light, consequently on high light level flat field exposures the overscans show an exponential decay and during reduction should be fitted with high-order splines. See the software manual for more details. Read noise is very low, and QE is similar to the Tek 1024's except the U band response is much improved. These should all be avoided.