Saxat från Film Tech forum
Hello everybody.
I´have a question that came to me last week. I went to a Cinema to make a Screening Test and I was extremely dissapointed about the luminance of the projection. One year ago the same cinema had a sharp, well contrasted image with beautiful blacks and now it seems very weak: blacks were gray, the colors were all shutdown and the luminance was 1,6 fL.
The projector is a NEC NC1100L-A with laser, around 7200 hours. Nothing changed, only the lamp hours.
My question is: this is normal? or should I think about other reasons for this dropdown - maybe dirt in the lens or mirrors - The lamp life is supposed to be 20.000 hs, but at which luminance?
thanks for advance!